forked from osmocom/wireshark
Remove echld/.
It has been unsupported for some years and when talking about removing it in the past I received some positive and no negative feedback. There is one instance of echld left: capchild/capture_sync.c: * echld might have already reaped the child. Can that case be removed or should be comment be updated to something more accurate? (left for a separate patch) Change-Id: Idac397158dd86fd0728eb95379449ee4a463fc28 Reviewed-on: https://code.wireshark.org/review/20619 Petri-Dish: Jörg Mayer <jmayer@loplof.de> Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org> Reviewed-by: Anders Broman <a.broman58@gmail.com>
This commit is contained in:
parent
a65c0c4576
commit
0b6b152694
|
@ -33,7 +33,7 @@ indent_size = 4
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[{capinfos,captype,mergecap,tfshark,tshark}.c]
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indent_size = 2
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[{dftest,echld_test,randpkt,trigcap}.c]
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[{dftest,randpkt,trigcap}.c]
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indent_style = tab
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indent_size = tab
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@ -85,7 +85,6 @@ depcomp
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dftest
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dumpcap
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editcap
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echld_test
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exntest
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install-sh
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libtool
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@ -1173,10 +1173,6 @@ if(NOT WIN32)
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add_custom_target(dumpabi DEPENDS dumpabi-libwireshark dumpabi-libwiretap dumpabi-libwsutil)
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endif()
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if(ENABLE_ECHLD)
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add_subdirectory( echld )
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endif()
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if(BUILD_wireshark_gtk AND GTK_FOUND)
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add_subdirectory( ui/gtk )
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endif()
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@ -53,7 +53,6 @@ else()
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endif()
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# todo
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option(ENABLE_STATIC "Build a static version of Wireshark (not yet working)" OFF)
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option(ENABLE_ECHLD "Enable echld support" OFF)
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option(ENABLE_PLUGINS "Build with plugins" ON)
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option(ENABLE_PLUGIN_IFDEMO "Build with plugin interface demo" OFF)
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option(ENABLE_EXTCAP "Build with extcap hooks" ON)
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31
Makefile.am
31
Makefile.am
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@ -45,12 +45,11 @@ bin_PROGRAMS = \
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@dumpcap_bin@ \
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@reordercap_bin@ \
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@rawshark_bin@ \
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@sharkd_bin@ \
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@echld_test_bin@
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@sharkd_bin@
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EXTRA_PROGRAMS = wireshark-gtk wireshark tshark tfshark capinfos captype \
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editcap mergecap dftest randpkt text2pcap dumpcap reordercap \
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rawshark sharkd echld_test
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rawshark sharkd
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#
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# Wireshark configuration files are put in $(pkgdatadir).
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@ -718,30 +717,6 @@ dftest_LDADD = \
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@PCAP_LIBS@ \
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${EPAN_EXTRA_LIBS}
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echld_test_SOURCES = \
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echld_test.c \
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capture_opts.c \
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capture_stop_conditions.c \
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cfile.c \
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conditions.c \
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ringbuffer.c \
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sync_pipe_write.c
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echld_test_CPPFLAGS = $(AM_CPPFLAGS) $(GLIB_CFLAGS)
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echld_test_LDADD = \
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epan/libwireshark.la \
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echld/libechld.la \
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writecap/libwritecap.a \
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wsutil/libwsutil.la \
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@GLIB_LIBS@ \
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@PCAP_LIBS@ \
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@C_ARES_LIBS@
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echld_test_DEPENDENCIES = \
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echld/libechld.la \
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epan/libwireshark.la
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dumpcap_SOURCES = \
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capture_opts.c \
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capture_stop_conditions.c \
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@ -908,7 +883,6 @@ DIST_SUBDIRS = \
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codecs \
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doc \
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epan \
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echld \
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ui \
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ui/cli \
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ui/gtk \
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@ -932,7 +906,6 @@ SUBDIRS = \
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epan \
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capchild \
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caputils \
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@echld_dir@ \
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@plugins_dir@ \
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packaging \
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help \
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22
configure.ac
22
configure.ac
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@ -1876,26 +1876,6 @@ else
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fi
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AC_SUBST(sharkd_bin)
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# Enable/disable echld
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AC_ARG_ENABLE(echld,
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AC_HELP_STRING( [--enable-echld],
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[support echld (Experimental) @<:@default=no@:>@]),
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have_echld=$enableval,have_echld=no)
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AM_CONDITIONAL(HAVE_ECHLD, test "x$have_echld" = "xyes")
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if test "x$have_echld" = "xyes"
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then
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AC_DEFINE(HAVE_ECHLD, 1, [Define if echld is enabled])
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echld_test_bin="echld_test\$(EXEEXT)"
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echld_dir="echld"
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else
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have_echld="no"
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echld_test_bin=""
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echld_dir=""
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fi
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AC_SUBST(echld_test_bin)
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AC_SUBST(echld_dir)
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# Enable/disable tfshark
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AC_ARG_ENABLE(tfshark,
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AC_HELP_STRING( [--enable-tfshark],
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@ -3012,7 +2992,6 @@ AC_CONFIG_FILES(
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writecap/Makefile
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writecap/doxygen.cfg
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wsutil/Makefile
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echld/Makefile
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_CUSTOM_AC_OUTPUT_
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)
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@ -3161,7 +3140,6 @@ echo " Build sshdump : $enable_sshdump"
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echo " Build ciscodump : $enable_ciscodump"
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echo " Build randpktdump : $enable_randpktdump"
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echo " Build udpdump : $enable_udpdump"
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echo " Build echld : $have_echld"
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echo ""
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echo " Save files as pcap-ng by default : $enable_pcap_ng_default"
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echo " Install dumpcap with capabilities : $setcap_message"
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@ -1,251 +0,0 @@
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EPAN CHILDREN
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This document is a work in progress.
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This document describes a potential interface between a master process and one or more working children.
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The goal is to have along-running epan process without the troubles of epan reinit (leaks, mis-reinits, ...).
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Working children are spawn to capture or read files, then terminated.
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The long running parent process initializes epan and forks children that require no further initialization to run.
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epan_child.h in the root directory describes the C interface.
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Appendix A
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ECHLD PROTOCOL INTERACTION DIAGRAMS
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parent child dumpcap
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| | |
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A.1. creation
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new_child() ---------->|
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|<-----HELLO------|
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IDLE
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A.2. keepalive
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A.2.1 p->c
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ANY_STATE
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|-------PING----->|
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|<------PONG------|
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SAME_STATE
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A.2.2 c->p
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ANY_STATE
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|<------PING------|
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|-------PONG----->|
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SAME_STATE
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A.3. destruction
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A.3.1 normal
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ANY_STATE
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|---CLOSE_CHILD-->|
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|<----CLOSING-----|
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DYING
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|<-- SIG_CHLD
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delete_child()
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A.3.2 fatal error
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ANY_STATE
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|<-----ERROR------| (fatal_err,"reason")
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|<---SIG_CHLD
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delete_child()
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A.3.3 crash
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ANY_STATE
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|<---SIG_CHLD
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delete_child()
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A.4. getting current dir
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ANY_STATE
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|-------PWD------>|
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|<------CWD-------| (dirname)
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SAME_STATE
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A.5. changing current dir
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A.5.1 dir changed ok
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ANY_STATE
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|------CHDIR----->| (dirname)
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|<------CWD-------| (dirname)
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SAME_STATE
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A.5.2 dir changed ko
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ANY_STATE
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|------CHDIR----->| (dirname)
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|<-----ERROR------| (cannot_cd, "reason")
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SAME_STATE
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A.6. listing current directory
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A.6.1 file list ok
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ANY_STATE
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|----LIST_FILES-->| ("*.*"")
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|<---FILE_INFO----| (filename, format, encap, num_pkts, ...);
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|<---FILE_INFO----| (filename, format, encap, num_pkts, ...);
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.....
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|<---FILE_INFO----| (filename, format, encap, num_pkts, ...);
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SAME_STATE
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A.6.2 file list ko
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ANY_STATE
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|----LIST_FILES-->| ("*.*"")
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|<-----ERROR------| (no_files, "reason")
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SAME_STATE
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A.7. opening a file
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A.7.1 opened ok
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IDLE
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|----OPEN_FILE---->| (filename, ...)
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|<---FILE_OPENED---| (dirname)
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READING
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A.7.2 not opened
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IDLE
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|----OPEN_FILE---->| (filename, ...)
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|<-----ERROR-------| (cannot_open, "reason")
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IDLE
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A.8. saving a file
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A.8.1 save ok
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READING/CAPTURING/DONE
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|-----SAVE_FILE---->| ("new_filename",opts,...)
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|<----FILE_SAVED----| (24, tree)
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SAME_STATE
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A.8.1 save ko
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READING/CAPTURING/DONE
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|-----SAVE_FILE---->| ("new_filename",opts,...)
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|<------ERROR-------| (cannot_save, "reason")
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SAME_STATE
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A.9. listing interfaces
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A.9.1 intf list ok
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IDLE
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|--LIST_INTERFACES-->| ("*.*"")
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| |-------????------>|
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| |<------????-------|
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|<--INTERFACE_INFO---| (name, param1=val1, ...)
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|<--INTERFACE_INFO---| (name, param1=val1, ...)
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.....
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|<--INTERFACE_INFO---| (name, param1=val1, ...)
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IDLE
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A.9.2 intf list ko
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|--LIST_INTERFACES-->| ("*.*"")
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| |-------????------>|
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| |<------????-------|
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|<------ERROR-------| (list_intf, "reason")
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A.10. opening an interface
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A.10.1 interface opened ok
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IDLE
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|---OPEN_INTERFACE-->|
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| |-------????------>|
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| |<------????-------|
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|<--INTERFACE_OPENED-|
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READY
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A.10.2 interface open failure
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IDLE
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|--OPEN_INTERFACE--->|
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| |-------????------>|
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| |<------????-------|
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|<-------ERROR-------| (intf, "reason")
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IDLE
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A.11. starting capture
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A.11.1 started capture ok
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READY
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|---START_CAPTURE--->|
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| |-------????------>|
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||||
| |<------????-------|
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||||
|<-CAPTURE_STARTED---|
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IN_CAPTURE
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A.11.2 capture start failure
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READY
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|----START_CAPTURE-->|
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||||
| |-------????------>|
|
||||
| |<------????-------|
|
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|<-------ERROR-------| (cannot_start, "reason")
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READY
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A.12. capturing or reading
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IN_CAPTURE/READING
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| |<------????-------|
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|<----PACKET_SUM-----| (framenum, columns)
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IN_CAPTURE
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A.13 getting packet details
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A.13.1 just frame
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IN_CAPTURE/READING
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|----GET_PACKETS--->| (framelist)
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|<-----PACKET-------| (1, tree)
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|<-----BUFFER-------| ("1", tvb)
|
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|<-----PACKET-------| (2, tree)
|
||||
|<-----BUFFER-------| ("2", tvb)
|
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SAME_STATE
|
||||
|
||||
A.13.2 frame with reassembled buffer
|
||||
IN_CAPTURE/READING/DONE
|
||||
|----GET_PACKETS--->| (framelist)
|
||||
|<-----PACKET-------| (framenum, tree)
|
||||
|<-----BUFFER-------| ("framenum", tvb)
|
||||
|<-----BUFFER-------| ("reas_num", tvb)
|
||||
SAME_STATE
|
||||
|
||||
|
||||
A.13.3 frame with known reassembled buffer
|
||||
IN_CAPTURE/READING/DONE
|
||||
|<-----PACKET-------| (framenum+N, tree)
|
||||
|<-----BUFFER-------| ("framenum+N", tvb)
|
||||
|<-----BUFFER-------| ("reas_num", NULL)
|
||||
SAME_STATE
|
||||
|
||||
A.13.4 buffer request (e.g. un-cached buffer)
|
||||
IN_CAPTURE/READING/DONE
|
||||
|------GET_BUF----->| (bufname)
|
||||
|<-----BUFFER-------| (bufname, NULL)
|
||||
SAME_STATE
|
||||
|
||||
A.14 stpping capture
|
||||
IN_CAPTURE
|
||||
|---STOP_CAPTURE--->|
|
||||
|<-CAPTURE_STOPPED--|
|
||||
DONE
|
||||
|
||||
|
||||
A.15. done reading
|
||||
READING
|
||||
|<-- EOF
|
||||
|<--------EOF--------|
|
||||
DONE
|
||||
|
||||
A.16 setting a note
|
||||
A.16.1 note set ok
|
||||
IN_CAPTURE/READING/DONE
|
||||
|----ADD_NOTE------>| (framenum,note)
|
||||
|<----NOTE_ADDED----|
|
||||
SAME_STATE
|
||||
A.16.2 note set failure
|
||||
IN_CAPTURE/READING/DONE
|
||||
|----ADD_NOTE------>| (framenum,note)
|
||||
|<----NOTE_ADDED----|
|
||||
SAME_STATE
|
||||
|
||||
A.17 applying a filter
|
||||
IN_CAPTURE/READING/DONE
|
||||
|---APPLY_FILTER--->| (dfilter_str)
|
||||
|<---PACKET_LIST----| (Packet-Range)
|
||||
|<---PACKET_LIST----| (Packet-Range)
|
||||
SAME_STATE
|
||||
|
||||
|
||||
A.18 setting a filter
|
||||
IDLE
|
||||
|-----SET_FILTER---->| (dfilter_str)
|
||||
|<---FILTER_SET------|
|
||||
IDLE
|
||||
|
|
@ -1,106 +0,0 @@
|
|||
# CMakeLists.txt
|
||||
#
|
||||
# Wireshark - Network traffic analyzer
|
||||
# By Gerald Combs <gerald@wireshark.org>
|
||||
# Copyright 1998 Gerald Combs
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or
|
||||
# modify it under the terms of the GNU General Public License
|
||||
# as published by the Free Software Foundation; either version 2
|
||||
# of the License, or (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program; if not, write to the Free Software
|
||||
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
#
|
||||
|
||||
set(CLEAN_FILES
|
||||
echld-util.c
|
||||
parent.c
|
||||
)
|
||||
|
||||
set(DIRTY_FILES
|
||||
child.c
|
||||
common.c
|
||||
dispatcher.c
|
||||
)
|
||||
|
||||
set(echld_LIBS
|
||||
${GLIB2_LIBRARIES}
|
||||
)
|
||||
|
||||
set(ECHLD_FILES
|
||||
${CLEAN_FILES}
|
||||
${DIRTY_FILES}
|
||||
)
|
||||
|
||||
set_source_files_properties(
|
||||
${CLEAN_FILES}
|
||||
PROPERTIES
|
||||
COMPILE_FLAGS "${WERROR_COMMON_FLAGS}"
|
||||
)
|
||||
|
||||
|
||||
add_library(echld ${LINK_MODE_LIB}
|
||||
${ECHLD_FILES}
|
||||
)
|
||||
|
||||
set(FULL_SO_VERSION "0.0.0")
|
||||
|
||||
set_target_properties(echld PROPERTIES COMPILE_DEFINITIONS "WS_BUILD_DLL")
|
||||
set_target_properties(echld PROPERTIES COMPILE_OPTIONS "${WS_WARNINGS_C_FLAGS}")
|
||||
set_target_properties(echld PROPERTIES LINK_FLAGS "${WS_LINK_FLAGS}")
|
||||
set_target_properties(echld PROPERTIES VERSION ${FULL_SO_VERSION} SOVERSION 0)
|
||||
|
||||
# discover and substitute list of include directories for ABI compatibility
|
||||
# checks
|
||||
#get_directory_property(INCLUDE_DIRS INCLUDE_DIRECTORIES)
|
||||
#list(REMOVE_DUPLICATES INCLUDE_DIRS)
|
||||
#string(REGEX REPLACE ";" "\n" INCLUDE_DIRS "${INCLUDE_DIRS}")
|
||||
#configure_file(../abi-descriptor.template abi-descriptor.xml)
|
||||
|
||||
# ABI compliance checker can be obtained from
|
||||
# http://ispras.linux-foundation.org/index.php/ABI_compliance_checker
|
||||
# Checked using version 1.21.12
|
||||
#file(GLOB HEADERS *.h)
|
||||
#file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/abi-check-headers)
|
||||
#
|
||||
#file(COPY ${HEADERS} ../ws_symbol_export.h DESTINATION abi-check-headers)
|
||||
|
||||
#add_custom_command(OUTPUT libwsutil.abi.tar.gz
|
||||
# COMMAND cp ../config.h abi-check-headers/
|
||||
# COMMAND abi-compliance-checker -l libwsutil -v1 ${FULL_SO_VERSION}
|
||||
# -relpath ${CMAKE_CURRENT_BINARY_DIR} -dump-abi abi-descriptor.xml
|
||||
# || cat logs/libwsutil/[0-9]*/log.txt
|
||||
# COMMAND cp abi_dumps/libwsutil/libwsutil_* libwsutil.abi.tar.gz
|
||||
# COMMAND rm -rf abi-check-headers/* abi_dumps
|
||||
# DEPENDS ${HEADERS} wsutil)
|
||||
#add_custom_target(dumpabi-libwsutil DEPENDS libwsutil.abi.tar.gz)
|
||||
|
||||
target_link_libraries(echld ${echld_LIBS})
|
||||
|
||||
if(NOT ${ENABLE_STATIC})
|
||||
install(TARGETS echld
|
||||
LIBRARY DESTINATION lib
|
||||
RUNTIME DESTINATION lib
|
||||
ARCHIVE DESTINATION lib
|
||||
)
|
||||
endif()
|
||||
|
||||
#
|
||||
# Editor modelines - http://www.wireshark.org/tools/modelines.html
|
||||
#
|
||||
# Local variables:
|
||||
# c-basic-offset: 8
|
||||
# tab-width: 8
|
||||
# indent-tabs-mode: t
|
||||
# End:
|
||||
#
|
||||
# vi: set shiftwidth=8 tabstop=8 noexpandtab:
|
||||
# :indentSize=8:tabSize=8:noTabs=false:
|
||||
#
|
|
@ -1,63 +0,0 @@
|
|||
# Makefile.am
|
||||
#
|
||||
# Wireshark - Network traffic analyzer
|
||||
# By Gerald Combs <gerald@wireshark.org>
|
||||
# Copyright 1998 Gerald Combs
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or
|
||||
# modify it under the terms of the GNU General Public License
|
||||
# as published by the Free Software Foundation; either version 2
|
||||
# of the License, or (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program; if not, write to the Free Software
|
||||
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
|
||||
include $(top_srcdir)/Makefile.am.inc
|
||||
|
||||
AM_CPPFLAGS = -DWS_BUILD_DLL $(INCLUDEDIRS) $(WS_CPPFLAGS) \
|
||||
$(GLIB_CFLAGS)
|
||||
|
||||
lib_LTLIBRARIES = libechld.la
|
||||
|
||||
libechld_la_SOURCES = \
|
||||
echld-util.c \
|
||||
dispatcher.c \
|
||||
child.c \
|
||||
parent.c \
|
||||
common.c \
|
||||
echld-int.h \
|
||||
echld-util.h \
|
||||
echld.h
|
||||
|
||||
libechld_la_LDFLAGS = -version-info 0:0:0 @LDFLAGS_SHAREDLIB@
|
||||
|
||||
libechld_la_LIBADD = \
|
||||
../caputils/libcaputils.a \
|
||||
../epan/libwireshark.la \
|
||||
../wsutil/libwsutil.la \
|
||||
../wiretap/libwiretap.la \
|
||||
@GLIB_LIBS@
|
||||
|
||||
libechld_la_DEPENDENCIES = \
|
||||
../caputils/libcaputils.a \
|
||||
../epan/libwireshark.la \
|
||||
../wiretap/libwiretap.la \
|
||||
../wsutil/libwsutil.la
|
||||
|
||||
EXTRA_DIST = \
|
||||
CMakeLists.txt
|
||||
|
||||
CLEANFILES = \
|
||||
libechld.a \
|
||||
libechld.la \
|
||||
*~
|
||||
|
||||
MAINTAINERCLEANFILES = \
|
||||
Makefile.in
|
||||
|
731
echld/child.c
731
echld/child.c
|
@ -1,731 +0,0 @@
|
|||
/* echld_child.c
|
||||
* epan working child internals
|
||||
* Child process routines and definitions
|
||||
*
|
||||
* Wireshark - Network traffic analyzer
|
||||
* By Gerald Combs <gerald@wireshark.org>
|
||||
* Copyright 1998 Gerald Combs
|
||||
*
|
||||
* Copyright (c) 2013 by Luis Ontanon <luis@ontanon.org>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License
|
||||
* as published by the Free Software Foundation; either version 2
|
||||
* of the License, or (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
|
||||
#include "echld-int.h"
|
||||
|
||||
typedef struct _child {
|
||||
child_state_t state;
|
||||
|
||||
int pid;
|
||||
int dispatcher_pid;
|
||||
int chld_id;
|
||||
int reqh_id;
|
||||
echld_reader_t parent;
|
||||
struct _fds {
|
||||
int pipe_to_parent;
|
||||
int pipe_from_dumpcap;
|
||||
int pipe_to_dumpcap;
|
||||
int file_being_read;
|
||||
} fds;
|
||||
|
||||
struct timeval started;
|
||||
struct timeval now;
|
||||
|
||||
child_encoder_t* enc;
|
||||
child_decoder_t* dec;
|
||||
|
||||
/* epan stuff */
|
||||
char* cf_name;
|
||||
char* cfilter;
|
||||
char* dfilter;
|
||||
|
||||
|
||||
#if 0
|
||||
capture_file cfile;
|
||||
#endif
|
||||
dfilter_t* df;
|
||||
|
||||
} echld_child_t;
|
||||
|
||||
static echld_epan_stuff_t* stuff = NULL;
|
||||
|
||||
static echld_child_t child;
|
||||
|
||||
struct _st_map {
|
||||
child_state_t id;
|
||||
const char* str;
|
||||
};
|
||||
|
||||
|
||||
#ifdef DEBUG_CHILD
|
||||
static int debug_lvl = DEBUG_CHILD;
|
||||
static FILE* debug_fp = NULL;
|
||||
#define DBG_BUF_LEN 1024
|
||||
|
||||
#define DCOM()
|
||||
|
||||
int child_debug(int level, const char* fmt, ...) {
|
||||
va_list ap;
|
||||
char str[DBG_BUF_LEN];
|
||||
|
||||
if (debug_lvl<level) return 1;
|
||||
|
||||
va_start(ap, fmt);
|
||||
vsnprintf(str,DBG_BUF_LEN,fmt,ap);
|
||||
va_end(ap);
|
||||
|
||||
fprintf(debug_fp, "child[%d-%d]: reqh_id=%d debug_lvl=%d message='%s'\n",
|
||||
child.chld_id, child.pid, child.reqh_id, level, str);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
static char* param_get_dbg_level(char** err _U_) {
|
||||
return g_strdup_printf("%d",debug_lvl);
|
||||
}
|
||||
|
||||
static echld_bool_t param_set_dbg_level(char* val , char** err ) {
|
||||
char* p;
|
||||
int lvl = (int)strtol(val, &p, 10);
|
||||
|
||||
if (p<=val) {
|
||||
*err = g_strdup("not an integer");
|
||||
return FALSE;
|
||||
} else if (lvl < 0 || lvl > 5) {
|
||||
*err = g_strdup_printf("invalid level=%d (min=0 max=5)",lvl);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
debug_lvl = lvl;
|
||||
DCOM();
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
||||
static long dbg_resp(GByteArray* em, echld_msg_type_t t) {
|
||||
long st = echld_write_frame(child.fds.pipe_to_parent, em, child.chld_id, t, child.reqh_id, NULL);
|
||||
child_debug(1, "SND fd=%d ch=%d ty='%s' rh=%d msg='%s'",
|
||||
child.fds.pipe_to_parent, child.chld_id, TY(t), child.reqh_id, (st>0?"ok":g_strerror(errno)) );
|
||||
return st;
|
||||
}
|
||||
|
||||
#define CHILD_DBG(attrs) ( child_debug attrs )
|
||||
#define CHILD_DBG_INIT() do { debug_fp = stderr; DCOM(); } while(0)
|
||||
#define CHILD_DBG_START(fname) do { debug_fp = ws_fopen(fname,"a"); DCOM(); CHILD_DBG((0,"Log Started")); } while(0)
|
||||
#define CHILD_RESP(BA,T) dbg_resp(BA,T)
|
||||
#define CHILD_STATE(ST) do { DISP_DBG((0,"State %s => %s")) } while(0)
|
||||
#else
|
||||
#define CHILD_DBG(attrs)
|
||||
#define CHILD_DBG_INIT()
|
||||
#define CHILD_DBG_START(fname)
|
||||
#define CHILD_RESP(BA,T) echld_write_frame(child.fds.pipe_to_parent,(BA),child.chld_id,T,child.reqh_id,NULL)
|
||||
#endif
|
||||
|
||||
|
||||
static struct timeval close_sleep_time;
|
||||
|
||||
|
||||
static void sig_term(int sig _U_) {
|
||||
CHILD_DBG((3,"Terminated, Closing"));
|
||||
exit(0);
|
||||
}
|
||||
|
||||
extern void echld_child_initialize(echld_chld_id_t chld_id, int pipe_from_parent, int pipe_to_parent, int reqh_id, echld_epan_stuff_t* es) {
|
||||
stuff = es;
|
||||
|
||||
close_sleep_time.tv_sec = CHILD_CLOSE_SLEEP_TIME / 1000000;
|
||||
close_sleep_time.tv_usec = CHILD_CLOSE_SLEEP_TIME % 1000000;
|
||||
|
||||
child.chld_id = chld_id;
|
||||
child.state = IDLE;
|
||||
child.pid = getpid();
|
||||
child.dispatcher_pid = getppid();
|
||||
child.reqh_id = reqh_id;
|
||||
echld_init_reader( &(child.parent), pipe_from_parent,4096);
|
||||
child.fds.pipe_to_parent = pipe_to_parent;
|
||||
child.fds.pipe_from_dumpcap = -1;
|
||||
child.fds.pipe_to_dumpcap = -1;
|
||||
child.fds.file_being_read = -1;
|
||||
gettimeofday(&child.started,NULL);
|
||||
child.now.tv_sec = child.started.tv_sec;
|
||||
child.now.tv_usec = child.started.tv_usec;
|
||||
|
||||
echld_get_all_codecs(&(child.enc), &(child.dec), NULL, NULL);
|
||||
|
||||
CHILD_DBG_INIT();
|
||||
CHILD_DBG((5,"Child Initialized ch=%d from=%d to=%d rq=%d",chld_id, pipe_from_parent, pipe_to_parent, reqh_id));
|
||||
|
||||
/*clear signal handlers */
|
||||
signal(SIGALRM,SIG_DFL);
|
||||
signal(SIGTERM,sig_term);
|
||||
signal(SIGPIPE,SIG_DFL);
|
||||
signal(SIGINT,SIG_DFL);
|
||||
signal(SIGABRT,SIG_DFL);
|
||||
signal(SIGHUP,SIG_DFL);
|
||||
|
||||
/* epan stuff */
|
||||
}
|
||||
|
||||
|
||||
|
||||
void child_err(int e, unsigned reqh_id, const char* fmt, ...) {
|
||||
size_t len= 1024;
|
||||
gchar err_str[len];
|
||||
va_list ap;
|
||||
static GByteArray* ba;
|
||||
|
||||
va_start(ap, fmt);
|
||||
g_vsnprintf(err_str,len,fmt,ap);
|
||||
va_end(ap);
|
||||
|
||||
CHILD_DBG((0,"error='%s'",err_str));
|
||||
|
||||
ba = child.enc->error(e, err_str);
|
||||
echld_write_frame(child.fds.pipe_to_parent, ba, child.chld_id, ECHLD_ERROR, reqh_id, NULL);
|
||||
g_byte_array_free(ba,TRUE);
|
||||
}
|
||||
|
||||
|
||||
static char* param_get_cwd(char** err ) {
|
||||
char* pwd = getcwd(NULL, 128);
|
||||
|
||||
if (!pwd) {
|
||||
*err = g_strdup(g_strerror(errno));
|
||||
}
|
||||
return pwd;
|
||||
}
|
||||
|
||||
static echld_bool_t param_set_cwd(char* val , char** err ) {
|
||||
/* XXX SANITIZE */
|
||||
if (chdir(val) != 0) {
|
||||
*err = g_strdup_printf("cannot chdir reas='%s'",g_strerror(errno));
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
||||
static unsigned packet_count = 0;
|
||||
static char* param_get_packet_count(char** err) {
|
||||
|
||||
if (child.state != CAPTURING && child.state != READING) {
|
||||
*err = g_strdup("Must be reading or in-capture for packet_count");
|
||||
return NULL;
|
||||
}
|
||||
return g_strdup_printf("%d",packet_count);
|
||||
}
|
||||
|
||||
|
||||
|
||||
static echld_bool_t param_set_dfilter(char* val , char** err) {
|
||||
dfilter_t *dfn = NULL;
|
||||
|
||||
if (child.state != IDLE && child.state != DONE ) {
|
||||
*err = g_strdup("Only while idle or done");
|
||||
return FALSE;
|
||||
} else {
|
||||
if ( dfilter_compile(val, &dfn, err) ) {
|
||||
if (child.dfilter) g_free(child.dfilter);
|
||||
if (child.df) dfilter_free(child.df);
|
||||
child.df = dfn;
|
||||
child.dfilter = g_strdup(val);
|
||||
return TRUE;
|
||||
} else {
|
||||
return FALSE;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static char* param_get_dfilter(char** err _U_) { return g_strdup(child.dfilter ? child.dfilter : ""); }
|
||||
|
||||
char* param_profile = NULL;
|
||||
|
||||
static echld_bool_t param_set_profile(char* val , char** err ) {
|
||||
|
||||
if (child.state != IDLE) {
|
||||
*err = g_strdup_printf("Cannot set Profile \"%s\", too late.", val);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (profile_exists (val, FALSE)) {
|
||||
set_profile_name (val);
|
||||
if (param_profile) g_free(param_profile);
|
||||
param_profile = g_strdup(val);
|
||||
return TRUE;
|
||||
} else {
|
||||
*err = g_strdup_printf("Configuration Profile \"%s\" does not exist", val);
|
||||
return FALSE;
|
||||
}
|
||||
}
|
||||
|
||||
static char* param_get_profile(char** err _U_) { return g_strdup(param_profile ? param_profile : ""); }
|
||||
|
||||
static char* param_get_file_list(char** err) {
|
||||
GError* gerror = NULL;
|
||||
GDir* dir = g_dir_open(".", 0, &gerror);
|
||||
GString* str = g_string_new("{ what='file_list', files=[");
|
||||
const char* file;
|
||||
|
||||
if (gerror) {
|
||||
*err = g_strdup_printf("Failed to open curr dir reason='%s'",gerror->message);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
while(( file = g_dir_read_name(dir) )) {
|
||||
g_string_append_printf(str,"{filename='%s'},\n",file);
|
||||
}
|
||||
g_dir_close(dir);
|
||||
|
||||
g_string_truncate(str, str->len-2); /* ',\n' */
|
||||
g_string_append(str, "]}");
|
||||
|
||||
return g_string_free(str,FALSE);
|
||||
}
|
||||
|
||||
#ifdef PCAP_NG_DEFAULT
|
||||
static int out_file_type = WTAP_FILE_TYPE_SUBTYPE_PCAPNG;
|
||||
#else
|
||||
static int out_file_type = WTAP_FILE_TYPE_SUBTYPE_PCAP;
|
||||
#endif
|
||||
|
||||
static echld_bool_t param_set_out_file_type(char* val, char** err) {
|
||||
int oft = wtap_short_string_to_file_type_subtype(val);
|
||||
|
||||
if (oft < 0) {
|
||||
*err = g_strdup_printf("\"%s\" isn't a valid capture file type", val);
|
||||
return FALSE;
|
||||
} else {
|
||||
out_file_type = oft;
|
||||
return TRUE;
|
||||
}
|
||||
}
|
||||
|
||||
static char* param_get_out_file_type(char** err _U_) {
|
||||
return g_strdup_printf("%s(%d): %s",
|
||||
wtap_file_type_subtype_short_string(out_file_type),
|
||||
out_file_type, wtap_file_type_subtype_string(out_file_type));
|
||||
}
|
||||
|
||||
|
||||
static echld_bool_t param_set_add_hosts_file(char* val, char** err) {
|
||||
if (add_hosts_file(val)) {
|
||||
return TRUE;
|
||||
} else {
|
||||
*err = g_strdup_printf("Can't read host entries from \"%s\"",val);
|
||||
return FALSE;
|
||||
}
|
||||
}
|
||||
|
||||
PARAM_BOOL(quiet,FALSE);
|
||||
PARAM_BOOL(start_capture,FALSE);
|
||||
PARAM_BOOL(push_details,FALSE);
|
||||
PARAM_BOOL(print_hex,FALSE);
|
||||
|
||||
static char* param_get_params(char** err _U_);
|
||||
|
||||
static param_t child_params[] = {
|
||||
#ifdef DEBUG_CHILD
|
||||
PARAM(dbg_level,"Debug Level (0<int<5)"),
|
||||
# endif
|
||||
PARAM(profile,"Configuration Profile (str)"),
|
||||
PARAM(cwd,"Current Directory (str)"),
|
||||
PARAM(dfilter,"Dispay Filter (str)"),
|
||||
RO_PARAM(packet_count,"Packets Read/Captured So Far (str)"),
|
||||
RO_PARAM(file_list,"List of Files in the Current Dir"),
|
||||
PARAM(start_capture,"Automatically start capture"),
|
||||
PARAM(quiet,"Quiet Mode"),
|
||||
PARAM(push_details,"Whether details of dissection should be passed"),
|
||||
PARAM(print_hex,"Output in hex"),
|
||||
PARAM(out_file_type,"Output File Type"),
|
||||
WO_PARAM(add_hosts_file,"Add a Hosts File"),
|
||||
RO_PARAM(params,"This List"),
|
||||
{NULL,NULL,NULL,NULL}
|
||||
};
|
||||
|
||||
static char* param_get_params(char** err _U_) {
|
||||
return paramset_get_params_list(child_params,PARAM_LIST_FMT);
|
||||
}
|
||||
|
||||
static void child_open_file(char* filename) {
|
||||
CHILD_DBG((2,"CMD open file filename='%s'",filename));
|
||||
child_err(ECHLD_ERR_UNIMPLEMENTED,child.reqh_id,"open file not implemented yet!");
|
||||
child.state = READING;
|
||||
}
|
||||
|
||||
static void child_open_interface(char* intf, char* pars) {
|
||||
CHILD_DBG((2,"CMD open interface intf='%s', params='%s'",intf,pars));
|
||||
child_err(ECHLD_ERR_UNIMPLEMENTED,child.reqh_id,"open interface not implemented yet!");
|
||||
child.state = READY;
|
||||
}
|
||||
|
||||
static void child_start_capture(void) {
|
||||
CHILD_DBG((2,"CMD start capture"));
|
||||
child_err(ECHLD_ERR_UNIMPLEMENTED,child.reqh_id,"start capture not implemented yet!");
|
||||
child.state = CAPTURING;
|
||||
}
|
||||
|
||||
static void child_stop_capure(void) {
|
||||
CHILD_DBG((2,"CMD stop capture"));
|
||||
child_err(ECHLD_ERR_UNIMPLEMENTED,child.reqh_id,"stop capture not implemented yet!");
|
||||
child.state = DONE;
|
||||
}
|
||||
|
||||
static void child_get_summary(char* range) {
|
||||
CHILD_DBG((2,"CMD get summary range='%s'",range));
|
||||
child_err(ECHLD_ERR_UNIMPLEMENTED,child.reqh_id,"get_summary not implemented yet!");
|
||||
}
|
||||
|
||||
static void child_get_tree(char* range) {
|
||||
CHILD_DBG((2,"CMD get tree range='%s'",range));
|
||||
child_err(ECHLD_ERR_UNIMPLEMENTED,child.reqh_id,"get_tree not implemented yet!");
|
||||
}
|
||||
|
||||
static void child_get_buffer(char* name) {
|
||||
CHILD_DBG((2,"CMD get buffer name='%s'",name));
|
||||
child_err(ECHLD_ERR_UNIMPLEMENTED,child.reqh_id,"get_buffer not implemented yet!");
|
||||
}
|
||||
|
||||
static void child_add_note(int framenum, char* note) {
|
||||
CHILD_DBG((2,"CMD add note framenum=%d note='%s'",framenum,note));
|
||||
child_err(ECHLD_ERR_UNIMPLEMENTED,child.reqh_id,"add_note not implemented yet!");
|
||||
}
|
||||
|
||||
static void child_apply_filter(char* filter) {
|
||||
CHILD_DBG((2,"CMD apply filter filter='%s'",filter));
|
||||
child_err(ECHLD_ERR_UNIMPLEMENTED,child.reqh_id,"apply_filter not implemented yet!");
|
||||
}
|
||||
|
||||
static void child_save_file(char* filename, char* pars) {
|
||||
CHILD_DBG((2,"CMD save file filename='%s' params='%s'",filename,pars));
|
||||
child_err(ECHLD_ERR_UNIMPLEMENTED,child.reqh_id,"save_file not implemented yet!");
|
||||
}
|
||||
|
||||
static long child_receive(guint8* b, size_t len, echld_chld_id_t chld_id, echld_msg_type_t type, echld_reqh_id_t reqh_id, void* data _U_) {
|
||||
GByteArray ba;
|
||||
GByteArray* gba;
|
||||
char* err = NULL;
|
||||
|
||||
child.reqh_id = reqh_id;
|
||||
|
||||
CHILD_DBG((2,"RCVD type='%s' len='%d'",TY(type),len));
|
||||
|
||||
#if 0
|
||||
gettimeofday(&(child.now), NULL);
|
||||
#endif
|
||||
|
||||
if (child.chld_id != chld_id) {
|
||||
child_err(ECHLD_ERR_WRONG_MSG,reqh_id,
|
||||
"chld_id: own:%d given:%d msg_type='%s'",child.chld_id,chld_id,TY(type));
|
||||
return 0;
|
||||
}
|
||||
|
||||
ba.data = b;
|
||||
ba.len = (guint)len;
|
||||
|
||||
switch(type) {
|
||||
case ECHLD_NEW_CHILD: {
|
||||
child.state = CREATING;
|
||||
if ( !paramset_apply_em(child_params,(enc_msg_t*)&ba, &err) ) {
|
||||
child_err(ECHLD_ERR_CRASHED_CHILD,reqh_id,
|
||||
"Initial Paramset Error '%s'",err);
|
||||
} else {
|
||||
child.state = IDLE;
|
||||
CHILD_RESP(NULL,ECHLD_HELLO);
|
||||
}
|
||||
break;
|
||||
}
|
||||
case ECHLD_PING:
|
||||
CHILD_DBG((1,"PONG"));
|
||||
CHILD_RESP(&ba,ECHLD_PONG);
|
||||
break;
|
||||
case ECHLD_SET_PARAM:{
|
||||
char* param;
|
||||
char* value;
|
||||
|
||||
if ( child.dec->set_param && child.dec->set_param(b,len,¶m,&value) ) {
|
||||
if (! paramset_apply_set (child_params, param, value, &err) ) {
|
||||
child_err(ECHLD_CANNOT_SET_PARAM,reqh_id,"%s",err);
|
||||
g_free(err);
|
||||
return 0;
|
||||
}
|
||||
|
||||
gba = child.enc->param(param,value);
|
||||
CHILD_RESP(gba,ECHLD_PARAM);
|
||||
g_byte_array_free(gba,TRUE);
|
||||
CHILD_DBG((1,"Set Param: param='%s' value='%s'",param,value));
|
||||
|
||||
break;
|
||||
} else {
|
||||
goto misencoded;
|
||||
}
|
||||
}
|
||||
case ECHLD_GET_PARAM: {
|
||||
char* param;
|
||||
if ( child.dec->get_param && child.dec->get_param(b,len,¶m) ) {
|
||||
char* val;
|
||||
|
||||
if (! (val = paramset_apply_get (child_params, param, &err)) ) {
|
||||
child_err(ECHLD_CANNOT_GET_PARAM,reqh_id,"%s",err);
|
||||
g_free(err);
|
||||
return 0;
|
||||
}
|
||||
|
||||
gba = child.enc->param(param,val);
|
||||
CHILD_RESP(gba,ECHLD_PARAM);
|
||||
g_byte_array_free(gba,TRUE);
|
||||
CHILD_DBG((2,"Get Param: param='%s' value='%s'",param,val));
|
||||
break;
|
||||
} else {
|
||||
goto misencoded;
|
||||
}
|
||||
}
|
||||
case ECHLD_CLOSE_CHILD:
|
||||
CHILD_RESP(NULL,ECHLD_CLOSING);
|
||||
CHILD_DBG((3,"Closing"));
|
||||
select(0,NULL,NULL,NULL,&close_sleep_time);
|
||||
CHILD_DBG((1,"Bye"));
|
||||
exit(0);
|
||||
break;
|
||||
case ECHLD_OPEN_FILE: {
|
||||
char* filename;
|
||||
if (child.state != IDLE) goto wrong_state;
|
||||
|
||||
if ( child.dec->open_file(b,len,&filename) ) {
|
||||
child_open_file(filename);
|
||||
} else {
|
||||
child_err(ECHLD_DECODE_ERROR,reqh_id,"cannot decode open_file");
|
||||
}
|
||||
break;
|
||||
}
|
||||
case ECHLD_OPEN_INTERFACE: {
|
||||
char* intf;
|
||||
char* pars;
|
||||
|
||||
if (child.state != IDLE) goto wrong_state;
|
||||
|
||||
if ( child.dec->open_interface(b,len,&intf,&pars) ) {
|
||||
child_open_interface(intf,pars);
|
||||
} else {
|
||||
child_err(ECHLD_DECODE_ERROR,reqh_id, "cannot decode open_interface");
|
||||
}
|
||||
break;
|
||||
}
|
||||
case ECHLD_START_CAPTURE:{
|
||||
if (child.state != READY) goto wrong_state;
|
||||
child_start_capture();
|
||||
break;
|
||||
}
|
||||
case ECHLD_STOP_CAPTURE: {
|
||||
if (child.state != CAPTURING) goto wrong_state;
|
||||
child_stop_capure();
|
||||
break;
|
||||
}
|
||||
case ECHLD_GET_SUM: {
|
||||
char* range;
|
||||
|
||||
if (child.state != CAPTURING && child.state != READING && child.state != DONE) goto wrong_state;
|
||||
|
||||
if ( child.dec->get_sum(b,len,&range) ) {
|
||||
child_get_summary(range);
|
||||
} else {
|
||||
child_err(ECHLD_DECODE_ERROR,reqh_id,"cannot decode get_summary");
|
||||
}
|
||||
break;
|
||||
}
|
||||
case ECHLD_GET_TREE:{
|
||||
char* range;
|
||||
|
||||
if (child.state != CAPTURING && child.state != READING && child.state != DONE) goto wrong_state;
|
||||
|
||||
if ( child.dec->get_tree(b,len,&range) ) {
|
||||
child_get_tree(range);
|
||||
} else {
|
||||
child_err(ECHLD_DECODE_ERROR,reqh_id,"cannot decode get_tree");
|
||||
}
|
||||
break;
|
||||
}
|
||||
case ECHLD_GET_BUFFER:{
|
||||
char* name;
|
||||
|
||||
if (child.state != CAPTURING && child.state != READING && child.state != DONE) goto wrong_state;
|
||||
|
||||
if ( child.dec->get_buffer(b,len,&name) ) {
|
||||
child_get_buffer(name);
|
||||
} else {
|
||||
child_err(ECHLD_DECODE_ERROR,reqh_id,"cannot decode get_buffer");
|
||||
}
|
||||
break;
|
||||
}
|
||||
case ECHLD_ADD_NOTE: {
|
||||
int framenum;
|
||||
char* note;
|
||||
|
||||
if (child.state != CAPTURING && child.state != READING && child.state != DONE) goto wrong_state;
|
||||
|
||||
if ( child.dec->add_note(b,len,&framenum,¬e) ) {
|
||||
child_add_note(framenum,note);
|
||||
} else {
|
||||
child_err(ECHLD_DECODE_ERROR,reqh_id,"cannot decode get_buffer");
|
||||
}
|
||||
break;
|
||||
}
|
||||
case ECHLD_APPLY_FILTER: {
|
||||
char* filter;
|
||||
|
||||
if (child.state != DONE) goto wrong_state;
|
||||
|
||||
if ( child.dec->apply_filter(b,len,&filter) ) {
|
||||
child_apply_filter(filter);
|
||||
} else {
|
||||
child_err(ECHLD_DECODE_ERROR,reqh_id,"cannot decode apply_filter");
|
||||
}
|
||||
break;
|
||||
}
|
||||
case ECHLD_SAVE_FILE: {
|
||||
char* filename;
|
||||
char* pars;
|
||||
|
||||
if (child.state != DONE) goto wrong_state;
|
||||
|
||||
if ( child.dec->save_file(b,len,&filename,&pars) ) {
|
||||
child_save_file(filename,pars);
|
||||
} else {
|
||||
child_err(ECHLD_DECODE_ERROR,reqh_id,"cannot decode save_file");
|
||||
}
|
||||
break;
|
||||
}
|
||||
default:
|
||||
child_err(ECHLD_ERR_WRONG_MSG,reqh_id,"wrong message: chld_id=%d msg_type='%s'",chld_id,TY(type));
|
||||
break;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
misencoded:
|
||||
/* dump the misencoded message (b,blen) */
|
||||
child_err(ECHLD_ERR_WRONG_MSG,reqh_id,"misencoded msg msg_type='%s'",TY(type));
|
||||
return 0;
|
||||
|
||||
wrong_state:
|
||||
child_err(ECHLD_ERR_WRONG_MSG,reqh_id,"unexpected message: received in wrong state='%s', msg_type='%s'",ST(child.state),TY(type));
|
||||
return 0;
|
||||
|
||||
}
|
||||
|
||||
static int child_dumpcap_read(void) {
|
||||
/* this folk manages the reading of dumpcap's pipe
|
||||
* it has to read interface descriptions when doing so
|
||||
* and managing capture during capture
|
||||
*/
|
||||
CHILD_DBG((2,"child_dumpcap_read"));
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
static void child_file_read(void) {
|
||||
|
||||
}
|
||||
|
||||
int echld_child_loop(void) {
|
||||
int disp_from = child.parent.fd;
|
||||
int disp_to = child.fds.pipe_to_parent;
|
||||
|
||||
#ifdef DEBUG_CHILD
|
||||
int step = 0;
|
||||
#endif
|
||||
|
||||
CHILD_DBG((0,"entering child_loop()"));
|
||||
|
||||
do {
|
||||
fd_set rfds;
|
||||
fd_set wfds;
|
||||
fd_set efds;
|
||||
struct timeval timeout;
|
||||
int nfds;
|
||||
gboolean captured = FALSE;
|
||||
|
||||
FD_ZERO(&rfds);
|
||||
FD_ZERO(&wfds);
|
||||
FD_ZERO(&efds);
|
||||
|
||||
FD_SET(disp_from,&rfds);
|
||||
FD_SET(disp_from,&efds);
|
||||
FD_SET(disp_to,&efds);
|
||||
|
||||
|
||||
if (child.fds.pipe_from_dumpcap > 0) {
|
||||
FD_SET(child.fds.pipe_from_dumpcap,&rfds);
|
||||
}
|
||||
|
||||
#ifdef DEBUG_CHILD
|
||||
if (step <= 20) CHILD_DBG((4,"child_loop: select()ing step=%d",step++));
|
||||
#endif
|
||||
timeout.tv_sec = 0;
|
||||
timeout.tv_usec = 999999;
|
||||
|
||||
nfds = select(FD_SETSIZE, &rfds, &wfds, &efds, &timeout);
|
||||
#ifdef DEBUG_CHILD
|
||||
if (step <= 20) CHILD_DBG((4,"child_loop: select()ed nfds=%d",nfds));
|
||||
#endif
|
||||
|
||||
if ( FD_ISSET(disp_from,&efds) ) {
|
||||
CHILD_DBG((0,"Broken Parent Pipe 'From' step=%d",step));
|
||||
break;
|
||||
}
|
||||
|
||||
if ( FD_ISSET(disp_to,&efds) ) {
|
||||
CHILD_DBG((0,"Broken Parent Pipe 'To' step=%d",step));
|
||||
break;
|
||||
}
|
||||
|
||||
if (child.fds.pipe_from_dumpcap > 0 && FD_ISSET(child.fds.pipe_from_dumpcap,&efds) ) {
|
||||
CHILD_DBG((0,"Broken Dumpcap Pipe step=%d",step));
|
||||
break;
|
||||
}
|
||||
|
||||
if (FD_ISSET(disp_from, &rfds)) {
|
||||
long st = echld_read_frame(&(child.parent), child_receive, &child);
|
||||
|
||||
#ifdef DEBUG_CHILD
|
||||
step = 0;
|
||||
#endif
|
||||
|
||||
if (st < 0) {
|
||||
CHILD_DBG((0,"Read Frame Failed step=%d",step));
|
||||
return (int)st;
|
||||
}
|
||||
}
|
||||
|
||||
if (child.fds.pipe_from_dumpcap > 0 && FD_ISSET(child.fds.pipe_from_dumpcap,&rfds) ) {
|
||||
|
||||
#ifdef DEBUG_CHILD
|
||||
step = 0;
|
||||
#endif
|
||||
captured = child_dumpcap_read();
|
||||
}
|
||||
|
||||
if ( child.state == READING || captured ) {
|
||||
child_file_read();
|
||||
}
|
||||
} while(1);
|
||||
|
||||
|
||||
CHILD_RESP(NULL,ECHLD_CLOSING);
|
||||
CHILD_DBG((3,"Closing"));
|
||||
return 222;
|
||||
}
|
||||
|
||||
|
922
echld/common.c
922
echld/common.c
|
@ -1,922 +0,0 @@
|
|||
/* echld_common.h
|
||||
* common functions of ECHLD
|
||||
*
|
||||
* Wireshark - Network traffic analyzer
|
||||
* By Gerald Combs <gerald@wireshark.org>
|
||||
* Copyright 1998 Gerald Combs
|
||||
*
|
||||
* Copyright (c) 2013 by Luis Ontanon <luis@ontanon.org>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License
|
||||
* as published by the Free Software Foundation; either version 2
|
||||
* of the License, or (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#include "echld-int.h"
|
||||
|
||||
#ifdef DEBUG_BASE
|
||||
|
||||
static int dbg_level = DEBUG_BASE;
|
||||
static FILE* dbg_fp;
|
||||
static const char* dbg_prefix;
|
||||
|
||||
static void common_dbg(int level, const char* fmt, ...) {
|
||||
va_list ap;
|
||||
char str[1024];
|
||||
|
||||
if (level > dbg_level) return;
|
||||
|
||||
va_start(ap,fmt);
|
||||
g_vsnprintf(str,1024,fmt,ap);
|
||||
va_end(ap);
|
||||
|
||||
if (dbg_fp) {
|
||||
fprintf(dbg_fp,"%s: level=%d msg='%s'\n",dbg_prefix,level,str);
|
||||
fflush(dbg_fp);
|
||||
}
|
||||
}
|
||||
|
||||
extern void echld_common_set_dbg(int level, FILE* fp, const char* prefix) {
|
||||
dbg_prefix = prefix;
|
||||
dbg_level = level;
|
||||
dbg_fp = fp;
|
||||
}
|
||||
#define DBG(attrs) ( common_dbg attrs )
|
||||
#else
|
||||
#define DBG(attrs)
|
||||
#endif
|
||||
|
||||
|
||||
struct _st_map
|
||||
{
|
||||
child_state_t id;
|
||||
const char* str;
|
||||
};
|
||||
|
||||
static struct _st_map st_map[] = {
|
||||
{ FREE, "FREE"},
|
||||
{ CREATING, "CREATING"},
|
||||
{ IDLE, "IDLE"},
|
||||
{ READY, "READY"},
|
||||
{ READING, "READING"},
|
||||
{ CAPTURING, "CAPTURING"},
|
||||
{ DONE, "DONE"},
|
||||
{ CLOSING, "CLOSING"},
|
||||
{ CLOSED, "CLOSED"},
|
||||
{ ERRORED, "ERRORED"},
|
||||
{0,NULL}
|
||||
};
|
||||
|
||||
const char* echld_state_str(child_state_t id) {
|
||||
int i = 0;
|
||||
|
||||
for (;st_map[i].str;i++) {
|
||||
if (id == st_map[i].id) return st_map[i].str;
|
||||
}
|
||||
|
||||
return "UNKNOWN";
|
||||
}
|
||||
|
||||
|
||||
struct _t_map
|
||||
{
|
||||
echld_msg_type_t type;
|
||||
const char* str;
|
||||
};
|
||||
|
||||
static struct _t_map t_map[] = {
|
||||
{ECHLD_ERROR,"ERROR"},
|
||||
{ECHLD_TIMED_OUT,"TIMED_OUT"},
|
||||
{ECHLD_NEW_CHILD,"NEW_CHILD"},
|
||||
{ECHLD_HELLO,"HELLO"},
|
||||
{ECHLD_CHILD_DEAD,"CHILD_DEAD"},
|
||||
{ECHLD_CLOSE_CHILD,"CLOSE_CHILD"},
|
||||
{ECHLD_CLOSING,"CLOSING"},
|
||||
{ECHLD_SET_PARAM,"SET_PARAM"},
|
||||
{ECHLD_GET_PARAM,"GET_PARAM"},
|
||||
{ECHLD_PARAM,"PARAM"},
|
||||
{ECHLD_PING,"PING"},
|
||||
{ECHLD_PONG,"PONG"},
|
||||
{ECHLD_OPEN_FILE,"OPEN_FILE"},
|
||||
{ECHLD_FILE_OPENED,"FILE_OPENED"},
|
||||
{ECHLD_OPEN_INTERFACE,"OPEN_INTERFACE"},
|
||||
{ECHLD_INTERFACE_OPENED,"INTERFACE_OPENED"},
|
||||
{ECHLD_START_CAPTURE,"START_CAPTURE"},
|
||||
{ECHLD_CAPTURE_STARTED,"CAPTURE_STARTED"},
|
||||
{ECHLD_NOTIFY,"NOTIFY"},
|
||||
{ECHLD_GET_SUM,"GET_SUM"},
|
||||
{ECHLD_PACKET_SUM,"PACKET_SUM"},
|
||||
{ECHLD_GET_TREE,"GET_TREE"},
|
||||
{ECHLD_TREE,"TREE"},
|
||||
{ECHLD_GET_BUFFER,"GET_BUFFER"},
|
||||
{ECHLD_BUFFER,"BUFFER"},
|
||||
{ECHLD_EOF,"EOF"},
|
||||
{ECHLD_STOP_CAPTURE,"STOP_CAPTURE"},
|
||||
{ECHLD_CAPTURE_STOPPED,"CAPTURE_STOPPED"},
|
||||
{ECHLD_ADD_NOTE,"ADD_NOTE"},
|
||||
{ECHLD_NOTE_ADDED,"NOTE_ADDED"},
|
||||
{ECHLD_APPLY_FILTER,"APPLY_FILTER"},
|
||||
{ECHLD_PACKET_LIST,"PACKET_LIST"},
|
||||
{ECHLD_SAVE_FILE,"SAVE_FILE"},
|
||||
{ECHLD_FILE_SAVED,"FILE_SAVED"},
|
||||
{ECHLD_NULL,NULL}
|
||||
};
|
||||
|
||||
const char* echld_msg_type_str(echld_msg_type_t id) {
|
||||
int i = 0;
|
||||
|
||||
for (;t_map[i].str;i++) {
|
||||
if (id == t_map[i].type) return t_map[i].str;
|
||||
}
|
||||
|
||||
return "UNKNOWN";
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
the "epan pipe" protocol
|
||||
**/
|
||||
|
||||
typedef void (*reader_realloc_t)(echld_reader_t*, size_t);
|
||||
|
||||
static void child_realloc_buff(echld_reader_t* r, size_t needed) {
|
||||
size_t a = r->actual_len;
|
||||
size_t s = r->len;
|
||||
long rp_off = r->rp - r->data;
|
||||
|
||||
DBG((2,"REALLOC BUFF needed=%d",needed));
|
||||
|
||||
if ( a < (s + needed) ) {
|
||||
guint8* data = r->data;
|
||||
|
||||
do {
|
||||
a *= 2;
|
||||
} while( a < (s + needed) );
|
||||
|
||||
data = (guint8*)g_realloc(data,a);
|
||||
|
||||
r->actual_len = a;
|
||||
r->len = s;
|
||||
r->data = data;
|
||||
r->wp = data + s;
|
||||
r->rp = data + rp_off;
|
||||
}
|
||||
}
|
||||
|
||||
static reader_realloc_t reader_realloc_buff = child_realloc_buff;
|
||||
|
||||
#ifdef PARENT_THREADS
|
||||
static void parent_realloc_buff(echld_reader_t* b, size_t needed) {
|
||||
/* parent thread: obtain malloc mutex */
|
||||
child_realloc_buff(b,needed);
|
||||
/* parent thread: release malloc mutex */
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
|
||||
void echld_reset_reader(echld_reader_t* r, int fd, size_t initial) {
|
||||
r->fd = fd;
|
||||
if (fcntl(fd, F_SETFL, O_NONBLOCK) < 0) {
|
||||
fprintf(stderr, "Unable to set non blocking on file...\n");
|
||||
return;
|
||||
}
|
||||
|
||||
if (r->data == NULL) {
|
||||
r->actual_len = initial;
|
||||
r->data =(guint8*) g_malloc0(initial);
|
||||
r->wp = r->data;
|
||||
r->rp = r->data;
|
||||
r->len = 0;
|
||||
} else {
|
||||
r->wp = r->data;
|
||||
r->rp = r->data;
|
||||
r->len = 0;
|
||||
}
|
||||
}
|
||||
|
||||
void echld_init_reader(echld_reader_t* r, int fd, size_t initial) {
|
||||
echld_reset_reader(r,fd,initial);
|
||||
}
|
||||
|
||||
|
||||
|
||||
void free_reader(echld_reader_t* r) {
|
||||
g_free(r->data);
|
||||
}
|
||||
|
||||
static long reader_readv(echld_reader_t* r, size_t len) {
|
||||
struct iovec iov;
|
||||
long nread;
|
||||
|
||||
DBG((2,"READV needed=%d",len));
|
||||
|
||||
if ( (r->actual_len - r->len) < len )
|
||||
reader_realloc_buff(r, len);
|
||||
|
||||
iov.iov_base = r->wp;
|
||||
iov.iov_len = len;
|
||||
|
||||
nread = readv(r->fd, &iov, 1);
|
||||
|
||||
DBG((2,"READV nread=%d msg='%s'",nread, (nread<0) ? g_strerror(errno) : "-" ));
|
||||
|
||||
if (nread >= 0) {
|
||||
r->wp += nread;
|
||||
r->len += nread;
|
||||
}
|
||||
|
||||
if (errno == EAGAIN) return 0;
|
||||
|
||||
return nread;
|
||||
};
|
||||
|
||||
|
||||
long echld_read_frame(echld_reader_t* r, read_cb_t cb, void* cb_data) {
|
||||
DBG((4,"READ = echld_read_frame fd=%d",r->fd));
|
||||
|
||||
/* it will use shared memory instead of inband communication */
|
||||
do {
|
||||
hdr_t* h = (hdr_t*)r->rp;
|
||||
long nread;
|
||||
size_t fr_len = 0;
|
||||
size_t missing;
|
||||
|
||||
DBG((5,"READ reader_len=%d",r->len));
|
||||
|
||||
if ( r->len < ECHLD_HDR_LEN) {
|
||||
/* read the header */
|
||||
goto incomplete_header;
|
||||
} else if ( ! reader_has_frame(r) ) {
|
||||
/* read the (rest of) the frame */
|
||||
goto incomplete_frame;
|
||||
}
|
||||
|
||||
DBG((5,"READ we've got a frame! fr_len=%d ch=%d t='%c' rh=%d",fr_len, h->h.chld_id, HDR_TYPE(h), h->h.reqh_id));
|
||||
|
||||
|
||||
cb( &(r->rp[sizeof(hdr_t)]), HDR_LEN(h), h->h.chld_id, HDR_TYPE(h), h->h.reqh_id, cb_data);
|
||||
|
||||
r->len = 0;
|
||||
r->wp = r->data;
|
||||
r->rp = r->data;
|
||||
|
||||
DBG((5,"READ consumed frame!"));
|
||||
|
||||
goto again;
|
||||
|
||||
incomplete_header:
|
||||
missing = ECHLD_HDR_LEN - (r->len);
|
||||
DBG((5,"READ incomplete_header missing=%d",missing));
|
||||
|
||||
nread = reader_readv(r,missing);
|
||||
|
||||
|
||||
if (nread < 0 && errno != EAGAIN) {
|
||||
goto kaput; /*XXX*/
|
||||
} else if (nread < (long)missing) {
|
||||
goto again;
|
||||
} else {
|
||||
goto incomplete_frame;
|
||||
}
|
||||
|
||||
incomplete_frame:
|
||||
fr_len = HDR_LEN(h) + ECHLD_HDR_LEN;
|
||||
missing = fr_len - r->len;
|
||||
|
||||
DBG((5,"READ incomplete_frame fr_len=%d missing=%d",fr_len ,missing));
|
||||
|
||||
if (missing) {
|
||||
nread = reader_readv(r,missing);
|
||||
|
||||
if (nread < 0 && errno != EAGAIN) {
|
||||
goto kaput; /*XXX*/
|
||||
} else if (nread < (long)missing) {
|
||||
goto again;
|
||||
}
|
||||
}
|
||||
|
||||
} while(1);
|
||||
|
||||
DBG((1,"READ incomplete_frame Cannot happen"));
|
||||
|
||||
return 0;
|
||||
again: return 1;
|
||||
kaput: return -1;
|
||||
}
|
||||
|
||||
long echld_write_frame(int fd, GByteArray* ba, guint16 chld_id, echld_msg_type_t type, guint16 reqh_id, void* data _U_) {
|
||||
hdr_t h;
|
||||
struct iovec iov[2];
|
||||
int iov_cnt = 1;
|
||||
|
||||
|
||||
h.h.type_len = (type<<24) | ((ba?ba->len:0) & 0x00ffffff) ;
|
||||
h.h.chld_id = chld_id;
|
||||
h.h.reqh_id = reqh_id;
|
||||
|
||||
iov[0].iov_base = &h;
|
||||
iov[0].iov_len = 8;
|
||||
|
||||
if ( ba && ba->len > 0 ) {
|
||||
iov[1].iov_base = ba->data;
|
||||
iov[1].iov_len = ba->len;
|
||||
iov_cnt++;
|
||||
}
|
||||
|
||||
return (long) writev(fd, iov, iov_cnt);
|
||||
}
|
||||
|
||||
/* paramset management */
|
||||
|
||||
param_t* paramset_find (param_t* paramsets, char* name, char** err) {
|
||||
int i;
|
||||
for (i = 0; paramsets[i].name != NULL;i++) {
|
||||
if (strcmp(name,paramsets[i].name) == 0 ) return &(paramsets[i]);
|
||||
}
|
||||
|
||||
*err = g_strdup_printf("Could not find param='%s'",name);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
echld_bool_t paramset_apply_set (param_t* paramsets, char* name, char* val, char** err) {
|
||||
param_t* p = paramset_find(paramsets,name,err);
|
||||
|
||||
if ( !p ) return FALSE;
|
||||
if ( ! p->set ) {
|
||||
*err = g_strdup_printf("Cannot set RO param='%s'",name);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
return p->set(val,err);
|
||||
}
|
||||
|
||||
char* paramset_apply_get (param_t* paramsets, char* name, char** err) {
|
||||
param_t* p = paramset_find(paramsets,name,err);
|
||||
|
||||
if ( !p ) return NULL;
|
||||
|
||||
if ( ! p->get ) {
|
||||
*err = g_strdup_printf("Cannot get WO param='%s'",name);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return p->get(err);
|
||||
}
|
||||
|
||||
echld_bool_t paramset_apply_em(param_t* paramset, enc_msg_t* em, char** err) {
|
||||
GByteArray* ba = (GByteArray*)em;
|
||||
char* p = (char*) ba->data;
|
||||
int tot_len = ba->len;
|
||||
long rem = tot_len;
|
||||
p[rem-1] = '\0'; /* make sure last char is null */
|
||||
|
||||
while(rem > 2) {
|
||||
char* param = p;
|
||||
long param_len = strlen(param)+1;
|
||||
char* value = p + param_len;
|
||||
long value_len;
|
||||
|
||||
rem -= param_len;
|
||||
|
||||
if (rem < 0) {
|
||||
*err = g_strdup_printf("Malformed msg param len invalid");
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
value_len = strlen(value)+1;
|
||||
|
||||
rem -= value_len;
|
||||
p = value + value_len;
|
||||
|
||||
if (rem < 0) {
|
||||
*err = g_strdup_printf("Malformed msg value len invalid");
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (! paramset_apply_set(paramset,param,value,err))
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
char* paramset_get_params_list(param_t* paramsets,const char* fmt) {
|
||||
param_t* p = paramsets;
|
||||
GString* str = g_string_new("");
|
||||
|
||||
for (;p->name;p++) {
|
||||
g_string_append_printf(str,fmt,
|
||||
p->name,
|
||||
((p->get && p->set)?"rw":(p->get?"ro":"wo")),
|
||||
p->desc);
|
||||
}
|
||||
|
||||
return g_string_free(str,FALSE);
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
/* encoders and decoders */
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
/* binary encoders and decoders used for parent->child communication */
|
||||
|
||||
static enc_msg_t* str_enc(const char* s) {
|
||||
GByteArray* ba = g_byte_array_new();
|
||||
g_byte_array_append(ba,s,(guint)(strlen(s)+1));
|
||||
return (enc_msg_t*)ba;
|
||||
}
|
||||
|
||||
static gboolean str_dec(guint8* b, size_t bs, char** text) {
|
||||
guint8* end = b+bs;
|
||||
b[bs-1] = '\0'; /* null terminate the buffer to avoid strlen running */
|
||||
*text = (char*)b;
|
||||
if (b+(strlen(b)+1) > end) return FALSE;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static gboolean str_deca(enc_msg_t* ba, char** text) {
|
||||
return str_dec(ba->data,ba->len,text);
|
||||
}
|
||||
|
||||
static enc_msg_t* int_str_enc(int i, const char* s) {
|
||||
GByteArray* ba = g_byte_array_new();
|
||||
g_byte_array_append(ba,(guint8*)&i,sizeof(int));
|
||||
g_byte_array_append(ba,s,(guint)(strlen(s)+1));
|
||||
return (enc_msg_t*)ba;
|
||||
}
|
||||
|
||||
static gboolean int_str_dec(guint8* b, size_t bs, int* ip, char** text) {
|
||||
guint8* end = b+bs;
|
||||
b[bs-1] = '\0'; /* null terminate the buffer to avoid strlen running */
|
||||
|
||||
if ((sizeof(int)) > bs) return FALSE;
|
||||
*ip = *((int*)b);
|
||||
b += (sizeof(int));
|
||||
*text = (char*)b;
|
||||
if ((b += (strlen(b)+1)) > end) return FALSE;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static gboolean int_str_deca(enc_msg_t* ba, int* ip, char** text) {
|
||||
return int_str_dec(ba->data,ba->len,ip,text);
|
||||
}
|
||||
|
||||
static enc_msg_t* int_enc(int i) {
|
||||
GByteArray* ba = g_byte_array_new();
|
||||
g_byte_array_append(ba,(guint8*)&i,sizeof(int));
|
||||
return (enc_msg_t*)ba;
|
||||
}
|
||||
|
||||
static gboolean int_dec(guint8* b, size_t bs, int* ip) {
|
||||
if ((sizeof(int)) > bs) return FALSE;
|
||||
*ip = *((int*)b);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static gboolean int_deca(enc_msg_t* ba, int* ip) {
|
||||
return int_dec(ba->data,ba->len,ip);
|
||||
}
|
||||
|
||||
static enc_msg_t* x2str_enc(const char* s1, const char* s2) {
|
||||
GByteArray* ba = g_byte_array_new();
|
||||
g_byte_array_append(ba,s1,(guint)(strlen(s1)+1));
|
||||
g_byte_array_append(ba,s2,(guint)(strlen(s2)+1));
|
||||
return (enc_msg_t*)ba;
|
||||
}
|
||||
|
||||
static gboolean x2str_dec(guint8* b, size_t blen, char** str1, char** str2) {
|
||||
guint8* end = b+blen;
|
||||
b[blen-1] = '\0'; /* null terminate the buffer to avoid strlen running */
|
||||
|
||||
*str1 = (char*)b;
|
||||
if ((b += (strlen(b)+1)) > end) return FALSE;
|
||||
*str2 = (char*)(b);
|
||||
if ((b += (strlen(b)+1)) > end) return FALSE;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static gboolean x2str_deca(enc_msg_t* ba, char** str1, char** str2) {
|
||||
return x2str_dec(ba->data,ba->len,str1,str2);
|
||||
}
|
||||
|
||||
static gboolean int_3str_dec (guint8* b, size_t len, int* i, char** s1, char** s2, char** s3) {
|
||||
guint8* end = b+len;
|
||||
b[len-1] = '\0';
|
||||
|
||||
if ((sizeof(int)) > len) return FALSE;
|
||||
*i = *((int*)b);
|
||||
b += sizeof(int);
|
||||
|
||||
*s1 = (char*)b;
|
||||
if ((b += (strlen(b)+1)) > end) return FALSE;
|
||||
*s2 = (char*)(b);
|
||||
if ((b += (strlen(b)+1)) > end) return FALSE;
|
||||
*s3 = (char*)b;
|
||||
if ((b += (strlen(b)+1)) > end) return FALSE;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static enc_msg_t* int_3str_enc(int i, const char* s1, const char* s2, const char* s3) {
|
||||
GByteArray* ba = g_byte_array_new();
|
||||
g_byte_array_append(ba,(guint8*)&i,sizeof(int));
|
||||
g_byte_array_append(ba,s1,(guint)(strlen(s1)+1));
|
||||
g_byte_array_append(ba,s2,(guint)(strlen(s2)+1));
|
||||
g_byte_array_append(ba,s3,(guint)(strlen(s3)+1));
|
||||
return (enc_msg_t*)ba;
|
||||
}
|
||||
|
||||
static gboolean int_3str_deca (enc_msg_t* e, int* i, char** s1, char** s2, char** s3) {
|
||||
return int_3str_dec(e->data,e->len,i,s1,s2,s3);
|
||||
}
|
||||
|
||||
static gboolean x3str_dec (guint8* b, size_t len, char** s1, char** s2, char** s3) {
|
||||
guint8* end = b+len;
|
||||
b[len-1] = '\0';
|
||||
|
||||
|
||||
*s1 = (char*)b;
|
||||
if ((b += (strlen(b)+1)) > end) return FALSE;
|
||||
*s2 = (char*)(b);
|
||||
if ((b += (strlen(b)+1)) > end) return FALSE;
|
||||
*s3 = (char*)b;
|
||||
if ((b += (strlen(b)+1)) > end) return FALSE;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static gboolean x3str_deca (enc_msg_t* e, char** s1, char** s2, char** s3) {
|
||||
return x3str_dec(e->data,e->len,s1,s2,s3);
|
||||
}
|
||||
|
||||
|
||||
static enc_msg_t* x3str_enc(const char* s1, const char* s2, const char* s3) {
|
||||
GByteArray* ba = g_byte_array_new();
|
||||
g_byte_array_append(ba,s1,(guint)(strlen(s1)+1));
|
||||
g_byte_array_append(ba,s2,(guint)(strlen(s2)+1));
|
||||
g_byte_array_append(ba,s3,(guint)(strlen(s3)+1));
|
||||
return (enc_msg_t*)ba;
|
||||
}
|
||||
|
||||
static echld_parent_encoder_t parent_encoder = {
|
||||
int_str_enc,
|
||||
str_enc,
|
||||
x2str_enc,
|
||||
int_enc,
|
||||
str_enc,
|
||||
x2str_enc,
|
||||
str_enc,
|
||||
str_enc,
|
||||
str_enc,
|
||||
int_str_enc,
|
||||
str_enc,
|
||||
x2str_enc
|
||||
};
|
||||
|
||||
echld_parent_encoder_t* echld_get_encoder(void) {
|
||||
return &parent_encoder;
|
||||
}
|
||||
|
||||
static child_decoder_t child_decoder = {
|
||||
int_str_dec,
|
||||
x2str_dec,
|
||||
str_dec,
|
||||
int_dec,
|
||||
str_dec,
|
||||
x2str_dec,
|
||||
str_dec,
|
||||
str_dec,
|
||||
str_dec,
|
||||
int_str_dec,
|
||||
str_dec,
|
||||
x2str_dec
|
||||
};
|
||||
|
||||
static child_encoder_t child_encoder = {
|
||||
int_str_enc,
|
||||
str_enc,
|
||||
x2str_enc,
|
||||
str_enc,
|
||||
int_str_enc,
|
||||
int_str_enc,
|
||||
int_3str_enc,
|
||||
x3str_enc
|
||||
};
|
||||
|
||||
static parent_decoder_t parent_decoder = {
|
||||
int_str_deca,
|
||||
str_deca,
|
||||
x2str_deca,
|
||||
str_deca,
|
||||
int_str_deca,
|
||||
int_str_deca,
|
||||
int_3str_deca,
|
||||
x3str_deca
|
||||
};
|
||||
|
||||
void echld_get_all_codecs( child_encoder_t **e, child_decoder_t **d, echld_parent_encoder_t **pe, parent_decoder_t** pd) {
|
||||
e && (*e = &child_encoder);
|
||||
d && (*d = &child_decoder);
|
||||
pe && (*pe = &parent_encoder);
|
||||
pd && (*pd = &parent_decoder);
|
||||
}
|
||||
|
||||
|
||||
|
||||
/* output encoders, used in the switch */
|
||||
|
||||
|
||||
static char* packet_summary_json(GByteArray* ba _U_) {
|
||||
/* dummy */
|
||||
return g_strdup("{type='packet_summary', packet_summary={}");
|
||||
}
|
||||
|
||||
static char* tree_json(GByteArray* ba _U_) {
|
||||
/* dummy */
|
||||
return g_strdup("{type='tree', tree={}");
|
||||
}
|
||||
|
||||
char* tvb_json(GByteArray* ba _U_, tvb_t* tvb _U_, const char* name) {
|
||||
/* dummy */
|
||||
return g_strdup_printf("{type='buffer', buffer={name='%s', range='0-2', data=[0x12,0xff] }",name);
|
||||
}
|
||||
|
||||
static char* error_json(GByteArray* ba) {
|
||||
char* s = (char*)(ba->data + sizeof(int));
|
||||
int i = *((int*)s);
|
||||
|
||||
s = g_strdup_printf("{type='error', error={errnum=%d, message='%s'}}",i,s);
|
||||
|
||||
return s;
|
||||
}
|
||||
|
||||
static char* child_dead_json(GByteArray* ba) {
|
||||
char* s = (char*)(ba->data + sizeof(int));
|
||||
int i = *((int*)s);
|
||||
|
||||
s = g_strdup_printf("{type='child_dead', child_dead={childnum=%d, message='%s'}}",i,s);
|
||||
|
||||
return s;
|
||||
}
|
||||
|
||||
static char* closing_json(GByteArray* ba) {
|
||||
char* s = (char*)(ba->data);
|
||||
s = g_strdup_printf("{type='closing', closing={reason='%s'}}",s);
|
||||
|
||||
return s;
|
||||
}
|
||||
|
||||
|
||||
|
||||
static char* note_added_json(GByteArray* ba) {
|
||||
char* s = (char*)(ba->data);
|
||||
s = g_strdup_printf("{ type='note_added', note_added={msg='%s'}}",s);
|
||||
|
||||
return s;
|
||||
}
|
||||
|
||||
static char* packet_list_json(GByteArray* ba _U_) {
|
||||
return g_strdup("{}");
|
||||
}
|
||||
|
||||
static char* file_saved_json(GByteArray* ba) {
|
||||
char* s = (char*)(ba->data);
|
||||
|
||||
s = g_strdup_printf("{ type='file_saved', file_saved={msg='%s'}}",s);
|
||||
|
||||
return s;
|
||||
}
|
||||
|
||||
|
||||
|
||||
static char* param_set_json(GByteArray* ba) {
|
||||
char* s1 = (char*)(ba->data);
|
||||
char* s2 = ((char*)(ba->data)) + strlen(s1);
|
||||
|
||||
s1 = g_strdup_printf("{type='param_set', param_set={param='%s' value='%s'}}",s1,s2);
|
||||
|
||||
|
||||
return s1;
|
||||
}
|
||||
|
||||
static char* set_param_json(GByteArray* ba) {
|
||||
char* s1 = (char*)(ba->data);
|
||||
char* s2 = ((char*)(ba->data)) + strlen(s1);
|
||||
|
||||
s1 = g_strdup_printf("{type='set_param', set_param={param='%s' value='%s'}}",s1,s2);
|
||||
|
||||
|
||||
return s1;
|
||||
}
|
||||
|
||||
static char* get_param_json(GByteArray* ba) {
|
||||
char* s1 = (char*)(ba->data);
|
||||
|
||||
s1 = g_strdup_printf("{type='get_param', get_param={param='%s'}}",s1);
|
||||
|
||||
|
||||
return s1;
|
||||
}
|
||||
|
||||
static char* file_opened_json(GByteArray* ba _U_) {
|
||||
return g_strdup("");
|
||||
}
|
||||
|
||||
static char* open_file_json(GByteArray* ba _U_) {
|
||||
return g_strdup("");
|
||||
}
|
||||
|
||||
static char* open_interface_json(GByteArray* ba _U_) {
|
||||
return g_strdup("");
|
||||
}
|
||||
|
||||
|
||||
static char* interface_opened_json(GByteArray* ba _U_) {
|
||||
return g_strdup("");
|
||||
}
|
||||
|
||||
static char* notify_json(GByteArray* ba _U_) {
|
||||
return g_strdup("");
|
||||
}
|
||||
|
||||
static char* get_tree_json(GByteArray* ba _U_) {
|
||||
return g_strdup("");
|
||||
}
|
||||
|
||||
static char* get_sum_json(GByteArray* ba _U_) {
|
||||
return g_strdup("");
|
||||
}
|
||||
|
||||
static char* get_buffer_json(GByteArray* ba _U_) {
|
||||
return g_strdup("");
|
||||
}
|
||||
|
||||
static char* buffer_json(GByteArray* ba _U_) {
|
||||
return g_strdup("");
|
||||
}
|
||||
|
||||
static char* add_note_json(GByteArray* ba _U_) {
|
||||
return g_strdup("");
|
||||
}
|
||||
|
||||
static char* apply_filter_json(GByteArray* ba _U_) {
|
||||
return g_strdup("");
|
||||
}
|
||||
|
||||
static char* save_file_json(GByteArray* ba _U_) {
|
||||
return g_strdup("");
|
||||
}
|
||||
|
||||
|
||||
/* this to be used only at the parent */
|
||||
static char* decode_json(echld_msg_type_t type, enc_msg_t* m) {
|
||||
GByteArray* ba = (GByteArray*)m;
|
||||
|
||||
switch(type) {
|
||||
case ECHLD_ERROR: return error_json(ba);
|
||||
case ECHLD_TIMED_OUT: return g_strdup("{type='timed_out'}");
|
||||
case ECHLD_NEW_CHILD: return g_strdup("{type='new_child'}");
|
||||
case ECHLD_HELLO: return g_strdup("{type='helo'}");
|
||||
case ECHLD_CHILD_DEAD: return child_dead_json(ba);
|
||||
case ECHLD_CLOSE_CHILD: return g_strdup("{type='close_child'}");
|
||||
case ECHLD_CLOSING: return closing_json(ba);
|
||||
case ECHLD_SET_PARAM: return set_param_json(ba);
|
||||
case ECHLD_GET_PARAM: return get_param_json(ba);
|
||||
case ECHLD_PARAM: return param_set_json(ba);
|
||||
case ECHLD_PING: return g_strdup("{type='ping'}");
|
||||
case ECHLD_PONG: return g_strdup("{type='pong'}");
|
||||
case ECHLD_OPEN_FILE: return open_file_json(ba);
|
||||
case ECHLD_FILE_OPENED: return file_opened_json(ba);
|
||||
case ECHLD_OPEN_INTERFACE: return open_interface_json(ba);
|
||||
case ECHLD_INTERFACE_OPENED: return interface_opened_json(ba);
|
||||
case ECHLD_START_CAPTURE: return g_strdup("{type='start_capture'}");
|
||||
case ECHLD_CAPTURE_STARTED: return g_strdup("{type='capture_started'}");
|
||||
case ECHLD_NOTIFY: return notify_json(ba);
|
||||
case ECHLD_GET_SUM: return get_sum_json(ba);
|
||||
case ECHLD_PACKET_SUM: return packet_summary_json(ba);
|
||||
case ECHLD_GET_TREE: return get_tree_json(ba);
|
||||
case ECHLD_TREE: return tree_json(ba);
|
||||
case ECHLD_GET_BUFFER: return get_buffer_json(ba);
|
||||
case ECHLD_BUFFER: return buffer_json(ba);
|
||||
case ECHLD_EOF: return g_strdup("{type='eof'}");
|
||||
case ECHLD_STOP_CAPTURE: return g_strdup("{type='stop_capture'}");
|
||||
case ECHLD_CAPTURE_STOPPED: return g_strdup("{type='capture_stopped'}");
|
||||
case ECHLD_ADD_NOTE: return add_note_json(ba);
|
||||
case ECHLD_NOTE_ADDED: return note_added_json(ba);
|
||||
case ECHLD_APPLY_FILTER: return apply_filter_json(ba);
|
||||
case ECHLD_PACKET_LIST: return packet_list_json(ba);
|
||||
case ECHLD_SAVE_FILE: return save_file_json(ba);
|
||||
case ECHLD_FILE_SAVED: return file_saved_json(ba);
|
||||
case EC_ACTUAL_ERROR: return g_strdup("{type='actual_error'}");
|
||||
default: break;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
char* echld_decode(echld_msg_type_t t, enc_msg_t* m ) {
|
||||
return decode_json(t,m);
|
||||
}
|
||||
|
||||
|
||||
|
||||
extern void dummy_switch(echld_msg_type_t type) {
|
||||
switch(type) {
|
||||
case ECHLD_ERROR: break;
|
||||
case ECHLD_TIMED_OUT: break;
|
||||
case ECHLD_NEW_CHILD: break;
|
||||
case ECHLD_HELLO: break;
|
||||
case ECHLD_CHILD_DEAD: break; /* S msg */
|
||||
case ECHLD_CLOSE_CHILD: break;
|
||||
case ECHLD_CLOSING: break;
|
||||
case ECHLD_SET_PARAM: break;
|
||||
case ECHLD_GET_PARAM: break;
|
||||
case ECHLD_PARAM: break; /* SS param,val */
|
||||
case ECHLD_PING: break;
|
||||
case ECHLD_PONG: break;
|
||||
case ECHLD_OPEN_FILE: break;
|
||||
case ECHLD_FILE_OPENED: break;
|
||||
case ECHLD_OPEN_INTERFACE: break;
|
||||
case ECHLD_INTERFACE_OPENED: break;
|
||||
case ECHLD_START_CAPTURE: break;
|
||||
case ECHLD_CAPTURE_STARTED: break;
|
||||
case ECHLD_NOTIFY: break; /* S notification (pre-encoded) */
|
||||
case ECHLD_GET_SUM: break;
|
||||
case ECHLD_PACKET_SUM: break; /* S (pre-encoded) */
|
||||
case ECHLD_GET_TREE: break;
|
||||
case ECHLD_TREE: break; /* IS framenum,tree (pre-encoded) */
|
||||
case ECHLD_GET_BUFFER: break;
|
||||
case ECHLD_BUFFER: break; /* SSIS name,range,totlen,data */
|
||||
case ECHLD_EOF: break;
|
||||
case ECHLD_STOP_CAPTURE: break;
|
||||
case ECHLD_CAPTURE_STOPPED: break;
|
||||
case ECHLD_ADD_NOTE: break;
|
||||
case ECHLD_NOTE_ADDED: break; /* IS */
|
||||
case ECHLD_APPLY_FILTER: break;
|
||||
case ECHLD_PACKET_LIST: break; /* SS name,range */
|
||||
case ECHLD_SAVE_FILE: break;
|
||||
case ECHLD_FILE_SAVED: break;
|
||||
case EC_ACTUAL_ERROR: break;
|
||||
}
|
||||
|
||||
switch(type) {
|
||||
case ECHLD_NEW_CHILD: break;
|
||||
case ECHLD_CLOSE_CHILD: break;
|
||||
case ECHLD_SET_PARAM: break; /* set_param(p,v) */
|
||||
case ECHLD_GET_PARAM: break; /* get_param(p) */
|
||||
case ECHLD_PING: break;
|
||||
case ECHLD_OPEN_FILE: break; /* open_file(f,mode) */
|
||||
case ECHLD_OPEN_INTERFACE: break; /* open_interface(if,param) */
|
||||
case ECHLD_START_CAPTURE: break;
|
||||
case ECHLD_GET_SUM: break; /* get_sum(rng) */
|
||||
case ECHLD_GET_TREE: break; /* get_tree(rng) */
|
||||
case ECHLD_GET_BUFFER: break; /* get_buffer(rng) */
|
||||
case ECHLD_STOP_CAPTURE: break;
|
||||
case ECHLD_ADD_NOTE: break; /* add_note(framenum,note) */
|
||||
case ECHLD_APPLY_FILTER: break; /* apply_filter(df) */
|
||||
case ECHLD_SAVE_FILE: break; /* save_file(f,mode) */
|
||||
|
||||
|
||||
case ECHLD_ERROR: break; /* error(err,reason) */
|
||||
case ECHLD_TIMED_OUT: break;
|
||||
case ECHLD_HELLO: break;
|
||||
case ECHLD_CHILD_DEAD: break; /* child_dead(msg) */
|
||||
case ECHLD_CLOSING: break;
|
||||
case ECHLD_PARAM: break;
|
||||
case ECHLD_PONG: break;
|
||||
case ECHLD_FILE_OPENED: break;
|
||||
case ECHLD_INTERFACE_OPENED: break;
|
||||
case ECHLD_CAPTURE_STARTED: break;
|
||||
case ECHLD_NOTIFY: break; /* notify(pre-encoded) */
|
||||
case ECHLD_PACKET_SUM: break; /* packet_sum(pre-encoded) */
|
||||
case ECHLD_TREE: break; /* tree(framenum, tree(pre-encoded) ) */
|
||||
case ECHLD_BUFFER: break; /* buffer (name,range,totlen,data) */
|
||||
case ECHLD_EOF: break;
|
||||
case ECHLD_CAPTURE_STOPPED: break;
|
||||
case ECHLD_NOTE_ADDED: break;
|
||||
case ECHLD_PACKET_LIST: break; /* packet_list(name,filter,range); */
|
||||
case ECHLD_FILE_SAVED: break;
|
||||
|
||||
case EC_ACTUAL_ERROR: break;
|
||||
}
|
||||
}
|
||||
|
||||
static void* unused = int_deca;
|
||||
|
||||
extern void unused_things(void) {
|
||||
unused = NULL;
|
||||
}
|
1077
echld/dispatcher.c
1077
echld/dispatcher.c
File diff suppressed because it is too large
Load Diff
|
@ -1,295 +0,0 @@
|
|||
/* echld_child-int.h
|
||||
* epan working child API internals
|
||||
*
|
||||
* Wireshark - Network traffic analyzer
|
||||
* By Gerald Combs <gerald@wireshark.org>
|
||||
* Copyright 1998 Gerald Combs
|
||||
*
|
||||
* Copyright (c) 2013 by Luis Ontanon <luis@ontanon.org>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License
|
||||
* as published by the Free Software Foundation; either version 2
|
||||
* of the License, or (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
#ifndef __ECHLD_HDR_INT_
|
||||
#define __ECHLD_HDR_INT_
|
||||
|
||||
#include <config.h>
|
||||
|
||||
#ifdef HAVE_FCNTL_H
|
||||
#include <fcntl.h>
|
||||
#endif
|
||||
|
||||
#ifdef HAVE_SYS_TYPES_H
|
||||
# include <sys/types.h>
|
||||
#endif
|
||||
|
||||
#ifdef HAVE_SYS_WAIT_H
|
||||
# include <sys/wait.h>
|
||||
#endif
|
||||
|
||||
#include <sys/time.h>
|
||||
#include <sys/uio.h>
|
||||
|
||||
#ifdef HAVE_UNISTD_H
|
||||
#include <unistd.h>
|
||||
#endif
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <stdarg.h>
|
||||
#include <errno.h>
|
||||
#include <signal.h>
|
||||
#include <locale.h>
|
||||
|
||||
#include <arpa/inet.h>
|
||||
|
||||
|
||||
#include <glib.h>
|
||||
#include <glib/gprintf.h>
|
||||
|
||||
|
||||
|
||||
#include "capture_opts.h"
|
||||
#include <capchild/capture_session.h>
|
||||
#include <caputils/capture_ifinfo.h>
|
||||
#include <capchild/capture_sync.h>
|
||||
#include "cfile.h"
|
||||
#include "wsutil/crash_info.h"
|
||||
#include "wsutil/privileges.h"
|
||||
#include "wsutil/filesystem.h"
|
||||
#include "wsutil/copyright_info.h"
|
||||
#include "ws_version_info.h"
|
||||
#include "epan/addr_resolv.h"
|
||||
#include "epan/epan.h"
|
||||
#include "epan/prefs.h"
|
||||
#include "epan/ex-opt.h"
|
||||
#include "epan/funnel.h"
|
||||
#include "epan/timestamp.h"
|
||||
#include "epan/disabled_protos.h"
|
||||
#include "echld.h"
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/* XXX these shouldn't be needed */
|
||||
typedef struct tvbuff tvb_t;
|
||||
|
||||
struct _hdr {
|
||||
guint32 type_len;
|
||||
guint16 chld_id;
|
||||
guint16 reqh_id;
|
||||
};
|
||||
|
||||
|
||||
#define ECHLD_HDR_LEN (sizeof(struct _hdr))
|
||||
|
||||
typedef union _hdr_t {
|
||||
struct _hdr h;
|
||||
guint8 b[ECHLD_HDR_LEN];
|
||||
} hdr_t;
|
||||
|
||||
#define HDR_TYPE(H) ((((H)->h.type_len)&0xff000000)>>24)
|
||||
#define HDR_LEN(H) ((((H)->h.type_len)&0x00ffffff))
|
||||
|
||||
#define GET_HDR_ELEMS(H,T,L,C,R) do { guint32 tl = H->h.type_len; \
|
||||
T=HDR_TYPE(H); L=HDR_LEN(H); C=H->h.chld_id; R=H->h.req_id; } while(0)
|
||||
|
||||
|
||||
typedef enum _cst {
|
||||
FREE=0,
|
||||
CREATING,
|
||||
IDLE,
|
||||
READY,
|
||||
READING,
|
||||
CAPTURING,
|
||||
DONE,
|
||||
CLOSING,
|
||||
CLOSED=-1,
|
||||
ERRORED=-2
|
||||
} child_state_t;
|
||||
|
||||
extern const char* echld_state_str(child_state_t);
|
||||
extern const char* echld_msg_type_str(echld_msg_type_t id);
|
||||
#define ST(st) echld_state_str(st)
|
||||
#define TY(ty) echld_msg_type_str(ty)
|
||||
|
||||
/* these manage the de-framing machine in the receiver side */
|
||||
typedef struct _echld_reader {
|
||||
guint8* rp; /* the read pointer*/
|
||||
size_t len; /* the used size = (.wp - .rp) */
|
||||
|
||||
guint8* wp; /* the write pointer */
|
||||
int fd; /* the filedesc is serving */
|
||||
|
||||
guint8* data; /* the allocated read buffer */
|
||||
size_t actual_len; /* the actual len of the allocated buffer */
|
||||
} echld_reader_t;
|
||||
|
||||
|
||||
#define reader_is_empty(R) ( (R)->len == 0 )
|
||||
#define reader_has_header(R) ((R)->len >= ECHLD_HDR_LEN)
|
||||
#define reader_has_frame(R) ( reader_has_header(R) && ( (HDR_LEN( (hdr_t*)((R)->rp) ) + ECHLD_HDR_LEN) >= ((R)->len )))
|
||||
|
||||
#define READER_FD_SET(R,fdset_p) FD_SET(R.fd,&(fdset_p))
|
||||
#define READER_FD_ISSET(R,fdset_p) READER_FD_ISSET(R.fd,&(fdset_p))
|
||||
#define READER_FD_CLEAR(R,fdset_p) READER_FD_CLEAR(R.fd,&(fdset_p))
|
||||
|
||||
extern void echld_common_set_dbg(int level, FILE* fp, const char* prefix);
|
||||
|
||||
extern void echld_init_reader(echld_reader_t* r, int fd, size_t initial);
|
||||
extern void echld_reset_reader(echld_reader_t* r, int fd, size_t initial);
|
||||
|
||||
typedef struct _param {
|
||||
const char* name;
|
||||
char* (*get)(char** err );
|
||||
echld_bool_t (*set)(char* val , char** err);
|
||||
const char* desc;
|
||||
} param_t;
|
||||
|
||||
extern param_t* paramset_find (param_t* paramsets, char* name, char** err);
|
||||
|
||||
extern char* paramset_apply_get (param_t* paramsets, char* name, char** err);
|
||||
extern echld_bool_t paramset_apply_set (param_t* paramsets, char* name, char* val, char** err);
|
||||
extern echld_bool_t paramset_apply_em(param_t* paramset, enc_msg_t* em, char** err);
|
||||
|
||||
#define PARAM_LIST_FMT "%s(%s): %s\n" /* name, rw|ro|wo, desc */
|
||||
char* paramset_get_params_list(param_t* paramsets, const char* fmt) G_GNUC_PRINTF(2, 0);
|
||||
|
||||
#define PARAM_STR(Name, Default) static char* param_ ## Name = Default; \
|
||||
static char* param_get_ ## Name (char** err _U_ ) { return (param_ ## Name) ? g_strdup(param_ ## Name) : (*err = g_strdup( #Name " not set"), NULL); } \
|
||||
static echld_bool_t param_set_ ## Name (char* val , char** err _U_) { if (param_ ## Name) g_free(param_ ## Name); param_ ## Name = g_strdup(val); return TRUE; } \
|
||||
|
||||
#define PARAM_INT(Name, Default) static int param_ ## Name = Default; \
|
||||
static char* param_get_ ## Name (char** err _U_ ) { return g_strdup_printf("%d",param_ ## Name); } \
|
||||
static echld_bool_t param_set_ ## Name (char* val , char** err _U_) { char* p; int temp = (int)strtol(val, &p, 10); if (p<=val) { *err = g_strdup("not an integer"); return FALSE; } else { param_ ## Name = temp; return TRUE; } }
|
||||
|
||||
#define PARAM_BOOL(Name, Default) static gboolean param_ ## Name = Default; \
|
||||
static char* param_get_ ## Name (char** err _U_ ) { return g_strdup(param_ ## Name ? "TRUE" : "FALSE"); } \
|
||||
static echld_bool_t param_set_ ## Name (char* val , char** err _U_) { param_ ## Name = (*val == 'T' || *val == 't') ? TRUE : FALSE; return TRUE;}
|
||||
|
||||
#define PARAM(Name,Desc) {#Name, param_get_ ## Name, param_set_ ## Name, Desc}
|
||||
#define RO_PARAM(Name,Desc) {#Name, param_get_ ## Name, NULL, Desc}
|
||||
#define WO_PARAM(Name,Desc) {#Name, NULL, param_set_ ## Name, Desc}
|
||||
|
||||
typedef struct _echld_epan_stuff_t {
|
||||
#ifdef HAVE_LIBPCAP
|
||||
capture_session cap_sess;
|
||||
capture_options cap_opts;
|
||||
capture_file cfile;
|
||||
#endif
|
||||
e_prefs* prefs;
|
||||
} echld_epan_stuff_t;
|
||||
|
||||
/* the call_back used by read_frame() */
|
||||
typedef long (*read_cb_t)(guint8*, size_t, echld_chld_id_t, echld_msg_type_t, echld_reqh_id_t, void*);
|
||||
|
||||
|
||||
typedef struct _child_in {
|
||||
echld_bool_t (*error) (guint8*, size_t, int* , char**);
|
||||
echld_bool_t (*set_param) (guint8*, size_t, char** param, char** value);
|
||||
echld_bool_t (*get_param) (guint8*, size_t, char** param);
|
||||
echld_bool_t (*close_child) (guint8*, size_t, int* mode);
|
||||
echld_bool_t (*open_file) (guint8*, size_t, char** filename);
|
||||
echld_bool_t (*open_interface) (guint8*, size_t, char** intf_name, char** params);
|
||||
echld_bool_t (*get_sum) (guint8*, size_t, char** range);
|
||||
echld_bool_t (*get_tree) (guint8*, size_t, char** range);
|
||||
echld_bool_t (*get_buffer) (guint8*, size_t, char** name);
|
||||
echld_bool_t (*add_note) (guint8*, size_t, int* packet_number, char** note);
|
||||
echld_bool_t (*apply_filter) (guint8*, size_t, char** filter);
|
||||
echld_bool_t (*save_file) (guint8*, size_t, char** filename, char** params);
|
||||
} child_decoder_t;
|
||||
|
||||
typedef struct _child_out {
|
||||
enc_msg_t* (*error) (int , const char*);
|
||||
enc_msg_t* (*child_dead) (const char*);
|
||||
enc_msg_t* (*param) (const char*, const char*);
|
||||
enc_msg_t* (*notify) (const char*); /* pre-encoded */
|
||||
enc_msg_t* (*packet_sum) (int, const char*); /* framenum, sum(pre-encoded) */
|
||||
enc_msg_t* (*tree) (int, const char*); /* framenum, tree(pre-encoded) */
|
||||
enc_msg_t* (*buffer) (int , const char*, const char*, const char*); /* totlen,name,range,data */
|
||||
enc_msg_t* (*packet_list) (const char*, const char*, const char*); /* name, filter, range */
|
||||
} child_encoder_t;
|
||||
|
||||
|
||||
typedef struct _parent_in {
|
||||
echld_bool_t (*error) (enc_msg_t*, int* , char**);
|
||||
echld_bool_t (*child_dead) (enc_msg_t*, char**);
|
||||
echld_bool_t (*param) (enc_msg_t*, char**, char**);
|
||||
echld_bool_t (*notify) (enc_msg_t*, char**); /* pre-encoded */
|
||||
echld_bool_t (*packet_sum) (enc_msg_t*, int*, char**); /* framenum, sum(pre-encoded) */
|
||||
echld_bool_t (*packet) (enc_msg_t*, int*, char**); /* framenum, tree(pre-encoded) */
|
||||
echld_bool_t (*buffer) (enc_msg_t*, int*, char**, char**, char**); /* totlen,name,range,data */
|
||||
echld_bool_t (*packet_list) (enc_msg_t*, char**, char**, char**); /* name, filter, range */
|
||||
} parent_decoder_t;
|
||||
|
||||
extern void echld_get_all_codecs(child_encoder_t**, child_decoder_t**, echld_parent_encoder_t**, parent_decoder_t**);
|
||||
|
||||
extern void echld_init_reader(echld_reader_t* r, int fd, size_t initial);
|
||||
extern void free_reader(echld_reader_t* r);
|
||||
|
||||
extern long echld_read_frame(echld_reader_t* r, read_cb_t cb, void* cb_data);
|
||||
extern long echld_write_frame(int fd, GByteArray* ba, guint16 chld_id, echld_msg_type_t type, guint16 reqh_id, void* data);
|
||||
|
||||
|
||||
extern void echld_child_initialize(echld_chld_id_t chld_id, int pipe_from_parent, int pipe_to_parent, int reqh_id, echld_epan_stuff_t* es);
|
||||
extern int echld_child_loop(void);
|
||||
|
||||
/* never returns*/
|
||||
extern void echld_dispatcher_start(int* in_pipe_fds, int* out_pipe_fds, char* argv0, int (*main)(int, char **));
|
||||
|
||||
|
||||
extern void dummy_switch(echld_msg_type_t type);
|
||||
extern void echld_unused(void);
|
||||
|
||||
/* config stuff */
|
||||
|
||||
/* initial debug levels */
|
||||
/* undefine to avoid debugging */
|
||||
#define DEBUG_BASE 5
|
||||
#define DEBUG_CHILD 5
|
||||
#define DEBUG_DISPATCHER 5
|
||||
#define DEBUG_PARENT 5
|
||||
|
||||
/* timers */
|
||||
#define DISPATCHER_WAIT_INITIAL 5000000 /* 5s */
|
||||
#define CHILD_CLOSE_SLEEP_TIME 2000000 /* 2s */
|
||||
#define CHILD_START_WAIT_TIME 100000 /* 0.1s */
|
||||
#define DISP_KILLED_CHILD_WAIT 100000 /* 0.1s */
|
||||
|
||||
/* fatalities */
|
||||
#define BROKEN_PARENT_PIPE 9
|
||||
#define BROKEN_DUMPCAP_PIPE 10
|
||||
#define BROKEN_READFILE 11
|
||||
#define DISPATCHER_DEAD 12
|
||||
#define UNIMPLEMENTED 13
|
||||
#define CANNOT_FORK 14
|
||||
#define SHOULD_HAVE_EXITED_BEFORE 15
|
||||
#define DISPATCHER_PIPE_FAILED 16
|
||||
#define TERMINATED 17
|
||||
#define CANNOT_PREINIT_EPAN 18
|
||||
#define NO_INITIALIZER 19
|
||||
|
||||
#ifndef DEBUG_BASE
|
||||
#define echld_common_set_dbg(a,b,c)
|
||||
#endif
|
||||
|
||||
|
||||
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
#endif
|
|
@ -1,210 +0,0 @@
|
|||
/* echld-util.c
|
||||
* utility for echld
|
||||
*
|
||||
* Wireshark - Network traffic analyzer
|
||||
* By Gerald Combs <gerald@wireshark.org>
|
||||
* Copyright 1998 Gerald Combs
|
||||
*
|
||||
* Copyright (c) 2013 by Luis Ontanon <luis@ontanon.org>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License
|
||||
* as published by the Free Software Foundation; either version 2
|
||||
* of the License, or (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#include "config.h"
|
||||
|
||||
#include "echld-int.h"
|
||||
#include "echld-util.h"
|
||||
|
||||
#include <glib.h>
|
||||
|
||||
struct _ping {
|
||||
struct timeval tv;
|
||||
echld_ping_cb_t cb;
|
||||
void* cb_data;
|
||||
};
|
||||
|
||||
static long timevaldiff(struct timeval *starttime, struct timeval *finishtime) {
|
||||
long msec;
|
||||
msec=(finishtime->tv_sec-starttime->tv_sec)*1000;
|
||||
msec+=(finishtime->tv_usec-starttime->tv_usec)/1000;
|
||||
return msec;
|
||||
}
|
||||
|
||||
static gboolean pong(echld_msg_type_t type, GByteArray* ba _U_, void* data) {
|
||||
struct _ping* p = (struct _ping*)data;
|
||||
struct timeval t;
|
||||
long ret = -1;
|
||||
gettimeofday(&t,NULL);
|
||||
|
||||
|
||||
switch (type) {
|
||||
case ECHLD_PONG:
|
||||
ret = timevaldiff(&(p->tv),&t);
|
||||
break;
|
||||
default:
|
||||
ret = -1;
|
||||
break;
|
||||
}
|
||||
|
||||
if (p->cb) p->cb(ret, p->cb_data);
|
||||
|
||||
g_free(p);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
||||
extern echld_state_t echld_ping(int chld_id, echld_ping_cb_t pcb, void* cb_data) {
|
||||
struct _ping* p = g_new0(struct _ping,1);
|
||||
|
||||
p->cb = pcb;
|
||||
p->cb_data = cb_data;
|
||||
gettimeofday(&(p->tv),NULL);
|
||||
|
||||
return echld_reqh(chld_id, ECHLD_PING, 0, NULL, pong, p);
|
||||
}
|
||||
|
||||
|
||||
struct _get_param {
|
||||
const char* name;
|
||||
echld_param_cb_t cb;
|
||||
void* cb_data;
|
||||
echld_bool_t (*dec)(enc_msg_t*, char**, char**);
|
||||
echld_bool_t (*dec_err)(enc_msg_t*, int* , char**);
|
||||
const char** err_msg;
|
||||
};
|
||||
|
||||
#define CHNULL ((char*)NULL)
|
||||
|
||||
static gboolean got_param(echld_msg_type_t type, GByteArray* ba _U_, void* data) {
|
||||
struct _get_param* g = (struct _get_param*)data;
|
||||
char* err_msg;
|
||||
|
||||
switch (type) {
|
||||
case ECHLD_PARAM:
|
||||
if (g->cb) {
|
||||
char* param;
|
||||
char* value;
|
||||
g->dec(ba,¶m,&value);
|
||||
g->cb(param,value,NULL,g->cb_data);
|
||||
|
||||
}
|
||||
break;
|
||||
case ECHLD_ERROR: {
|
||||
int errnum;
|
||||
g->dec_err(ba,&errnum,&err_msg);
|
||||
g->cb(NULL,NULL,err_msg,g->cb_data);
|
||||
break;
|
||||
}
|
||||
default:
|
||||
err_msg = g_strdup_printf("other type='%s'",TY(type));
|
||||
g->cb(NULL,NULL,err_msg,g->cb_data);
|
||||
g_free(err_msg);
|
||||
break;
|
||||
}
|
||||
|
||||
g_free(g);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
extern echld_state_t echld_get_param(int chld_id, const char* param, echld_param_cb_t acb, void* cb_data) {
|
||||
struct _get_param* g = g_new0(struct _get_param,1);
|
||||
echld_parent_encoder_t* enc;
|
||||
parent_decoder_t* dec;
|
||||
enc_msg_t* em;
|
||||
|
||||
echld_get_all_codecs(NULL, NULL, &enc, &dec);
|
||||
|
||||
em = enc->get_param(param);
|
||||
|
||||
g->name = param;
|
||||
g->cb = acb;
|
||||
g->cb_data = cb_data;
|
||||
g->dec = dec->param;
|
||||
g->dec_err = dec->error;
|
||||
|
||||
return echld_reqh(chld_id, ECHLD_GET_PARAM, 0, em, got_param, g);
|
||||
}
|
||||
|
||||
extern echld_state_t echld_set_param(int chld_id, const char* param, const char* value, echld_param_cb_t acb, void* cb_data) {
|
||||
struct _get_param* g = g_new0(struct _get_param,1);
|
||||
echld_parent_encoder_t* enc;
|
||||
parent_decoder_t* dec;
|
||||
enc_msg_t* em;
|
||||
|
||||
echld_get_all_codecs(NULL, NULL, &enc, &dec);
|
||||
|
||||
em = enc->set_param(param,value);
|
||||
|
||||
g->name = param;
|
||||
g->cb = acb;
|
||||
g->cb_data = cb_data;
|
||||
g->dec = dec->param;
|
||||
g->dec_err = dec->error;
|
||||
|
||||
return echld_reqh(chld_id, ECHLD_SET_PARAM, 0, em, got_param, g);
|
||||
}
|
||||
|
||||
typedef struct _close {
|
||||
echld_close_cb_t cb;
|
||||
void* cb_data;
|
||||
} close_t;
|
||||
|
||||
static gboolean closed(echld_msg_type_t type, GByteArray* ba, void* data) {
|
||||
close_t* c = (close_t*)data;
|
||||
parent_decoder_t* dec;
|
||||
char* err_msg;
|
||||
|
||||
echld_get_all_codecs(NULL, NULL, NULL, &dec);
|
||||
|
||||
switch (type) {
|
||||
case ECHLD_CLOSING: {
|
||||
if (c->cb) {
|
||||
c->cb(NULL,c->cb_data);
|
||||
}
|
||||
break;
|
||||
}
|
||||
case ECHLD_ERROR: {
|
||||
int errnum;
|
||||
|
||||
if ( dec->error(ba, &errnum ,&err_msg) ) {
|
||||
c->cb(err_msg,c->cb_data);
|
||||
g_free(err_msg);
|
||||
} else {
|
||||
c->cb("Canot decode error message",c->cb_data);
|
||||
}
|
||||
break;
|
||||
}
|
||||
default:
|
||||
err_msg = g_strdup_printf("other type='%s'",TY(type));
|
||||
c->cb(err_msg,c->cb_data);
|
||||
g_free(err_msg);
|
||||
break;
|
||||
}
|
||||
|
||||
g_free(c);
|
||||
return TRUE;
|
||||
|
||||
}
|
||||
|
||||
echld_state_t echld_close(int child_id, echld_close_cb_t pcb, void* cb_data) {
|
||||
close_t* c = g_new0(close_t,1);
|
||||
c->cb = pcb;
|
||||
c->cb_data = cb_data;
|
||||
|
||||
return echld_reqh(child_id,ECHLD_CLOSE_CHILD, 0, NULL, closed, c);
|
||||
}
|
||||
|
||||
|
|
@ -1,59 +0,0 @@
|
|||
/* echld-util.h
|
||||
* utility for echld
|
||||
*
|
||||
* Wireshark - Network traffic analyzer
|
||||
* By Gerald Combs <gerald@wireshark.org>
|
||||
* Copyright 1998 Gerald Combs
|
||||
*
|
||||
* Copyright (c) 2013 by Luis Ontanon <luis@ontanon.org>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License
|
||||
* as published by the Free Software Foundation; either version 2
|
||||
* of the License, or (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
#ifndef __ECHLD_UTIL
|
||||
#define __ECHLD_UTIL
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
typedef void (*echld_close_cb_t)(const char* error, void* data);
|
||||
WS_DLL_PUBLIC echld_state_t echld_close(int child_id, echld_close_cb_t pcb, void* cb_data);
|
||||
|
||||
|
||||
typedef void (*echld_ping_cb_t)(long usec, void* data);
|
||||
WS_DLL_PUBLIC echld_state_t echld_ping(int child_id, echld_ping_cb_t pcb, void* cb_data);
|
||||
|
||||
typedef void (*echld_param_cb_t)(const char* param, const char* value, const char* error, void* data);
|
||||
WS_DLL_PUBLIC echld_state_t echld_get_param(int chld_id, const char* param, echld_param_cb_t cb, void* cb_data);
|
||||
WS_DLL_PUBLIC echld_state_t echld_set_param(int chld_id, const char* param, const char* value, echld_param_cb_t acb, void* cb_data);
|
||||
|
||||
typedef void (*echild_get_packet_summary_cb_t)(char* summary, void* data);
|
||||
WS_DLL_PUBLIC echld_state_t echld_open_file(int child_id, const char* filename,echild_get_packet_summary_cb_t,void*);
|
||||
|
||||
|
||||
|
||||
WS_DLL_PUBLIC echld_state_t echld_open_interface(int child_id, const char* intf_name, const char* params);
|
||||
WS_DLL_PUBLIC echld_state_t echld_start_capture(int child_id, echild_get_packet_summary_cb_t);
|
||||
WS_DLL_PUBLIC echld_state_t echld_stop_capture(int child_id);
|
||||
|
||||
typedef void (*echild_get_packets_cb)(char* tree_text,void* data);
|
||||
typedef void (*echild_get_buffer_cb)(char* buffer_text, void* data);
|
||||
WS_DLL_PUBLIC echld_state_t echld_get_packets_range(int child_id, const char* range, echild_get_packets_cb, echild_get_buffer_cb, void* data);
|
||||
|
||||
#ifdef __cplusplus
|
||||
};
|
||||
#endif
|
||||
|
||||
#endif
|
433
echld/echld.h
433
echld/echld.h
|
@ -1,433 +0,0 @@
|
|||
/* echld.h
|
||||
* epan working child API
|
||||
*
|
||||
* Wireshark - Network traffic analyzer
|
||||
* By Gerald Combs <gerald@wireshark.org>
|
||||
* Copyright 1998 Gerald Combs
|
||||
*
|
||||
* Copyright (c) 2013 by Luis Ontanon <luis@ontanon.org>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License
|
||||
* as published by the Free Software Foundation; either version 2
|
||||
* of the License, or (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#ifndef __ECHLD_H
|
||||
#define __ECHLD_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
#include "ws_symbol_export.h"
|
||||
|
||||
#define ECHLD_VERSION "0.0"
|
||||
#define ECHLD_MAJOR_VERSION 0 /* increases when existing things change */
|
||||
/* if this changes an old client may or may not work */
|
||||
|
||||
#define ECHLD_MINOR_VERSION 0 /* increases when new things are added */
|
||||
/* if just this one changes an old client will still work */
|
||||
|
||||
/*
|
||||
* You should take a look to doc/README.epan_child before reading this
|
||||
*/
|
||||
|
||||
/* message types */
|
||||
typedef enum _echld_msg_type_t echld_msg_type_t;
|
||||
|
||||
/* error types */
|
||||
typedef enum _echld_error echld_error_t;
|
||||
|
||||
/* return codes */
|
||||
/* 0 is ok, everything else is ko, or timeout where applicable. */
|
||||
typedef int echld_state_t;
|
||||
#define ECHLD_OK 0
|
||||
#define ECHLD_TIMEOUT -222
|
||||
|
||||
/* id for child working processes, a negative value is an error */
|
||||
typedef int echld_chld_id_t;
|
||||
|
||||
/* id of requests, a negative value is an error */
|
||||
typedef int echld_reqh_id_t;
|
||||
|
||||
/* id of message handlers, a negative value is an error */
|
||||
typedef int echld_msgh_id_t;
|
||||
|
||||
/* enc_msg_t is an obscure object for an encoded message (a GbyteArray for now)*/
|
||||
typedef struct _GByteArray enc_msg_t;
|
||||
|
||||
/* sets the codec set by name */
|
||||
typedef enum _echld_encoding {
|
||||
ECHLD_ENCODING_TEXT = 'T',
|
||||
ECHLD_ENCODING_XML = 'X',
|
||||
ECHLD_ENCODING_JSON = 'J'
|
||||
} echld_encoding_t;
|
||||
|
||||
typedef int echld_bool_t;
|
||||
|
||||
/* typedef for a timeval so that sys/time.h is not required in the client */
|
||||
typedef struct timeval tv_t;
|
||||
|
||||
typedef void (*cleanup_cb_t)(void*);
|
||||
typedef int (*main_t)(int, char**); /* a pointer to main() */
|
||||
|
||||
/* these are called after a new child is created.
|
||||
* chld_id = -1 on error/timeout
|
||||
*/
|
||||
typedef void (*echld_new_cb_t)(void* child_data, const char* err);
|
||||
|
||||
/* I will be passed to echld_initialize() */
|
||||
typedef struct _echld_init {
|
||||
echld_encoding_t encoding; /* only JSON for now */
|
||||
|
||||
char* argv0; /* the value of argv[0] */
|
||||
main_t main;
|
||||
|
||||
echld_new_cb_t dispatcher_hello_cb; /* child_data will be a pointer to this echld_init_t */
|
||||
|
||||
cleanup_cb_t after_fork_cb; /* to be called by dispatcher just after fork to free
|
||||
the child processes from entities of the parent */
|
||||
void* after_fork_cb_data;
|
||||
|
||||
cleanup_cb_t at_term_cb; /* to be called after echld_terminate() is done */
|
||||
void* at_term_cb_data;
|
||||
|
||||
void* user_data; /* free for you to use */
|
||||
} echld_init_t;
|
||||
|
||||
/* will initialize echld forking the dispatcher and registering protocols and taps */
|
||||
WS_DLL_PUBLIC void echld_initialize(echld_init_t*);
|
||||
|
||||
/* cleans up echld and kills the server process(es) */
|
||||
WS_DLL_PUBLIC echld_state_t echld_terminate(void);
|
||||
|
||||
|
||||
/*
|
||||
* returning ECHLD_NO_ERROR means there has being no error
|
||||
*
|
||||
* errstr_ptr is a ptr to the error message string, will give NULL if no error
|
||||
* usable only after the last API call, doesn't have to be freed.
|
||||
*
|
||||
* for managing asyncronous errors use a msgh for ECHLD_ERROR
|
||||
* the response cb of reqh might be a ECHLD_ERROR message
|
||||
*/
|
||||
WS_DLL_PUBLIC echld_error_t echld_get_error(const char** errstr_ptr);
|
||||
|
||||
|
||||
/*
|
||||
* prototype of message callbacks passed to echld_reqh() and echld_msgh()
|
||||
*
|
||||
* type: for reqh it might be ECHLD_ERROR, ECHLD_TIMEOUT or what you expect,
|
||||
* in msgh it's always the message for which it was set
|
||||
* msg_buff: the encoded message
|
||||
* cb_data: arbitrary data passed by the user in echld_reqh() or echld_msgh()
|
||||
*
|
||||
* returns TRUE if other potential handlers are to be run, false otherwise
|
||||
*/
|
||||
typedef echld_bool_t (*echld_msg_cb_t)(echld_msg_type_t type, enc_msg_t* msg_buff, void* cb_data);
|
||||
|
||||
|
||||
/* encoding and decoding */
|
||||
|
||||
|
||||
/*
|
||||
* encoder
|
||||
* the enc_msg_t will be destroyed internally by the req handler
|
||||
* the resulting enc_msg_t can be used in a reqh just once.
|
||||
*/
|
||||
|
||||
typedef struct _parent_out {
|
||||
enc_msg_t* (*error)(int err, const char* text);
|
||||
enc_msg_t* (*get_param)(const char* param);
|
||||
enc_msg_t* (*set_param)(const char* param, const char* value);
|
||||
enc_msg_t* (*close_child)(int mode);
|
||||
enc_msg_t* (*open_file)(const char* filename);
|
||||
enc_msg_t* (*open_interface)(const char* intf_name, const char* params);
|
||||
enc_msg_t* (*get_sum)(const char* range);
|
||||
enc_msg_t* (*get_tree)(const char* range);
|
||||
enc_msg_t* (*get_bufer)(const char* name);
|
||||
enc_msg_t* (*add_note)(int packet_number, const char* note);
|
||||
enc_msg_t* (*apply_filter)(const char* filter);
|
||||
enc_msg_t* (*save_file)(const char* filename, const char* params);
|
||||
} echld_parent_encoder_t;
|
||||
|
||||
|
||||
WS_DLL_PUBLIC echld_parent_encoder_t* echld_get_encoder(void);
|
||||
|
||||
|
||||
/*
|
||||
* decoder
|
||||
* it returns an allocated string with the decoded response of the message, you free it.
|
||||
* it destroys the enc_msg_t as well.
|
||||
*/
|
||||
WS_DLL_PUBLIC char* echld_decode(echld_msg_type_t, enc_msg_t*);
|
||||
|
||||
/*
|
||||
* Children Management Operations
|
||||
*/
|
||||
|
||||
WS_DLL_PUBLIC enc_msg_t* echld_new_child_params(void);
|
||||
|
||||
|
||||
|
||||
/* takes the em, and param=value pairs of strings, NULL to end.
|
||||
echld_new_child_params_add_params(em,param1_str,val1_str,param2_str,val2_str,NULL); */
|
||||
WS_DLL_PUBLIC void echld_new_child_params_add_params(enc_msg_t*, ...);
|
||||
|
||||
WS_DLL_PUBLIC enc_msg_t* echld_new_child_params_merge(enc_msg_t*, enc_msg_t*);
|
||||
|
||||
#define ECHLD_NC_PARAMS_FMT " %s='%s',\n" /* param='value' */
|
||||
/* truncate takes off last N chars from the last item's fmt or prefix on empty */
|
||||
WS_DLL_PUBLIC char* echld_new_child_params_str(enc_msg_t* em,
|
||||
const char* prefix, const char* postfix, int truncate, const char* fmt)
|
||||
G_GNUC_PRINTF(5, 0);
|
||||
|
||||
|
||||
/* create a new worker process */
|
||||
WS_DLL_PUBLIC echld_chld_id_t echld_new(enc_msg_t* new_child_parameters, echld_new_cb_t cb, void* child_data);
|
||||
|
||||
/* will return NULL on error, if NULL is also ok for you use echld_get_error() */
|
||||
WS_DLL_PUBLIC void* echld_get_data(echld_chld_id_t);
|
||||
|
||||
WS_DLL_PUBLIC echld_state_t echld_set_data(echld_chld_id_t id, void* child_data);
|
||||
|
||||
/* for each child call cb(id,child_data,cb_data) */
|
||||
typedef echld_bool_t (*echld_iter_cb_t)(echld_chld_id_t, void* child_data, void* cb_data);
|
||||
WS_DLL_PUBLIC void echld_foreach_child(echld_iter_cb_t cb, void* cb_data);
|
||||
|
||||
/*
|
||||
* Request Handlers
|
||||
*
|
||||
*/
|
||||
|
||||
/* send a request with an optional response handler
|
||||
*
|
||||
* ba is a enc_msg_t that contains the encoded message
|
||||
* resp_cb is the callback and cb_data the data it is going to be passed if executed
|
||||
*
|
||||
* returns the reqh id */
|
||||
WS_DLL_PUBLIC echld_reqh_id_t echld_reqh(echld_chld_id_t, echld_msg_type_t, int usecs_timeout, enc_msg_t*, echld_msg_cb_t, void*);
|
||||
|
||||
/* get callback data for a live request */
|
||||
WS_DLL_PUBLIC void* echld_reqh_get_data(echld_chld_id_t, echld_reqh_id_t);
|
||||
|
||||
/* get the total timeout time for a live request, -1 is err */
|
||||
WS_DLL_PUBLIC int echld_reqh_get_to(echld_chld_id_t, echld_reqh_id_t);
|
||||
|
||||
/* get the remaining timeout time for a live request, -1 is err */
|
||||
WS_DLL_PUBLIC int echld_reqh_get_remaining_to(echld_chld_id_t, echld_reqh_id_t);
|
||||
|
||||
/* get the callback for a live request */
|
||||
WS_DLL_PUBLIC echld_msg_cb_t echld_reqh_get_cb(echld_chld_id_t, echld_reqh_id_t);
|
||||
|
||||
/* set callback data for a live request */
|
||||
WS_DLL_PUBLIC echld_state_t echld_reqh_set_data(echld_chld_id_t, echld_reqh_id_t, void* );
|
||||
|
||||
/* get the callback for a live request */
|
||||
WS_DLL_PUBLIC echld_state_t echld_reqh_set_cb(echld_chld_id_t, echld_reqh_id_t, echld_msg_cb_t);
|
||||
|
||||
/* stop receiving a live request */
|
||||
WS_DLL_PUBLIC echld_state_t echld_reqh_detach(echld_chld_id_t, echld_reqh_id_t);
|
||||
|
||||
|
||||
/*
|
||||
* Message Handlers
|
||||
*
|
||||
*/
|
||||
|
||||
/* start a message handler */
|
||||
WS_DLL_PUBLIC echld_msgh_id_t echld_msgh(echld_chld_id_t, echld_msg_type_t, echld_msg_cb_t resp_cb, void* msg_data);
|
||||
|
||||
/* stop it */
|
||||
WS_DLL_PUBLIC echld_state_t echld_msgh_detach(echld_chld_id_t, echld_msgh_id_t);
|
||||
|
||||
/* get a msgh's data */
|
||||
WS_DLL_PUBLIC void* echld_msgh_get_data(echld_chld_id_t, echld_msgh_id_t);
|
||||
|
||||
/* get a msgh's cb */
|
||||
WS_DLL_PUBLIC echld_msg_cb_t echld_msgh_get_cb(echld_chld_id_t, echld_msgh_id_t);
|
||||
|
||||
/* get a msgh's type */
|
||||
WS_DLL_PUBLIC echld_msg_type_t echld_msgh_get_type(echld_chld_id_t, echld_msgh_id_t);
|
||||
|
||||
/* get it all from a msgh */
|
||||
WS_DLL_PUBLIC echld_state_t echld_msgh_get_all(echld_chld_id_t, int msgh_id, echld_msg_type_t*, echld_msg_cb_t*, void**);
|
||||
|
||||
/* set a msgh's data */
|
||||
WS_DLL_PUBLIC echld_state_t echld_msgh_set_data(echld_chld_id_t, int msgh_id, void* );
|
||||
|
||||
/* set a msgh's cb */
|
||||
WS_DLL_PUBLIC echld_state_t echld_msgh_set_cb(echld_chld_id_t, int msgh_id, echld_msg_cb_t);
|
||||
|
||||
/* set a msgh's type */
|
||||
WS_DLL_PUBLIC echld_state_t echld_msgh_set_type(echld_chld_id_t, int msgh_id, echld_msg_type_t);
|
||||
|
||||
/* set all elements of a msgh */
|
||||
WS_DLL_PUBLIC echld_state_t echld_msgh_set_all(echld_chld_id_t, int msgh_id, echld_msg_type_t, echld_msg_cb_t, void*);
|
||||
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* Server routines
|
||||
*/
|
||||
|
||||
/*
|
||||
* waits until something gets done
|
||||
*
|
||||
* returns ECHLD_TIMEOUT or ECHLD_OK if something was done
|
||||
*/
|
||||
WS_DLL_PUBLIC echld_state_t echld_wait(tv_t* timeout);
|
||||
|
||||
#define ECHLD_WAIT() do { struct timeval tv; int rfds, efds; \
|
||||
echld_select(echld_fdset(&rfds, &efds),&rfds, NULL, &efds, NULL) \
|
||||
&& echld_fd_read(&rfds, &efds); } while(0)
|
||||
|
||||
/*
|
||||
to be used in place of select() in the main loop of the parent code
|
||||
it will serve the children pipes and return as if select() was called.
|
||||
*/
|
||||
WS_DLL_PUBLIC int echld_select(int nfds, fd_set* rfds, fd_set* wfds, fd_set* efds, tv_t* timeout);
|
||||
|
||||
/* or fit these two in your select loop */
|
||||
|
||||
/* returns nfds set */
|
||||
WS_DLL_PUBLIC int echld_fdset(fd_set* rfds, fd_set* efds);
|
||||
|
||||
WS_DLL_PUBLIC int echld_fd_read(fd_set* rfds, fd_set* efds);
|
||||
|
||||
WS_DLL_PUBLIC void echld_set_parent_dbg_level(int lvl);
|
||||
|
||||
|
||||
#define ECHLD_MAX_CHILDREN 32
|
||||
|
||||
enum _echld_msg_type_t {
|
||||
/* in = child to parent */
|
||||
/* out = parent to child */
|
||||
|
||||
ECHLD_NULL ='\0', /* To terminate array */
|
||||
ECHLD_ERROR = '!', /* in: an error has occurred,
|
||||
* this can be a response to most messages
|
||||
* some errors are sent asyncronously (some are handled internally, some are then passed)
|
||||
*/
|
||||
ECHLD_TIMED_OUT='/', /* in: A reqh has timed out (TO from now on)
|
||||
* this can be a response to some messages
|
||||
* some TOs are sent asyncronously (some are handled internally, some are then passed)
|
||||
*/
|
||||
|
||||
ECHLD_NEW_CHILD = '*', /* out: creates a new working child (handled internally) */
|
||||
ECHLD_HELLO = '@', /* in: the working child has being created (handled internally, then passed to msgh) */
|
||||
|
||||
ECHLD_CHILD_DEAD = '#', /* in: a child has dead (handled internally, then passed to msgh) */
|
||||
|
||||
ECHLD_CLOSE_CHILD = 'Q', /* out: close the child */
|
||||
ECHLD_CLOSING = 'q', /* in: the child is closing, error otherwise */
|
||||
/* this handled internally as msgh, if your reqh_cb uses it make sure to return TRUE */
|
||||
|
||||
ECHLD_SET_PARAM = '>', /* out: set a parameter of a child */
|
||||
ECHLD_GET_PARAM = '<', /* out: set a parameter of a child */
|
||||
ECHLD_PARAM = 'p', /* in: the parameter's new/current value, error otherwise */
|
||||
|
||||
/* capture_filter string RO: set at open_capture */
|
||||
/* monitor_mode string RW: use monitor mode if possible, error otherwise */
|
||||
/* inc_pkt_ntfy_timeout number_string RW: timeout in usec after which notification is sent if no maxpackets have arrived yet */
|
||||
/* inc_pkt_ntfy_maxpackets number_string RW: number of packets after which send a notification */
|
||||
/* auto_sum RW: get summaries automatically (without a reqh, as msgh) */
|
||||
/* auto_tree RW: get trees automatically (without a reqh, as msgh) */
|
||||
/* auto_buffer RW: get buffers automatically (without a reqh, as msgh) */
|
||||
/* cwd RW: the current working directory */
|
||||
/* list_files WO: a file listing of the current dir */
|
||||
/* interfaces RO: the interface listing */
|
||||
/* dfilter RW: initial display filter*/
|
||||
/* dfilter_chk WO: check a display filter */
|
||||
/* ... */
|
||||
|
||||
ECHLD_PING = '}', /* out: ping the child */
|
||||
ECHLD_PONG = '{', /* out: ping's response, error or TO otherwise */
|
||||
|
||||
ECHLD_OPEN_FILE = 'O', /* out: open a file */
|
||||
ECHLD_FILE_OPENED = 'o', /* in: the file has being open, error otherwise */
|
||||
|
||||
ECHLD_OPEN_INTERFACE = 'C', /* out: request an interface to be open (get ready for capture) */
|
||||
ECHLD_INTERFACE_OPENED = 'c', /* in: ready to start_capture, error otherwise */
|
||||
|
||||
ECHLD_START_CAPTURE = 'R', /* out: start capturing */
|
||||
ECHLD_CAPTURE_STARTED = 'r', /* in: the capture has started, error otherwise */
|
||||
|
||||
ECHLD_NOTIFY = '%', /* in: many things can be notified by the child:
|
||||
number of packets captured/read
|
||||
other events in the future (?)
|
||||
*/
|
||||
|
||||
ECHLD_GET_SUM = 'S', /* out: get the summaries of a range of packets (even before they are notify'd) */
|
||||
ECHLD_PACKET_SUM = 's', /* in: a packet's summary (when it arrives for a reqh) (in msgh if auto_sum )*/
|
||||
/* no timeout, the request hangs until the packets in the range are available */
|
||||
/* error at EOF or CAPTURE_STOPPED if the request is still hanging */
|
||||
|
||||
ECHLD_GET_TREE = 'G', /* out: get the decoded version of the packet */
|
||||
ECHLD_TREE = 't', /* Child -> Parent */
|
||||
/* no timeout, the request hangs until the packets in the range are available */
|
||||
/* error at EOF or CAPTURE_STOPPED if the request is still hanging */
|
||||
|
||||
|
||||
ECHLD_GET_BUFFER = 'B', /* out: get the decoded version of the packet */
|
||||
ECHLD_BUFFER = 'b', /* in: get a buffer (or what we have of it... or the next part... same reqh_id) */
|
||||
/* no timeout, the request hangs until the packets in the range are available */
|
||||
/* error at EOF or CAPTURE_STOPPED if the request is still hanging */
|
||||
|
||||
ECHLD_EOF = 'z', /* in: will be delivered when a file has being read and all pendin ntfy,sums,trees and buffs have being passed
|
||||
or after capture has stopped and all pending stuff is done */
|
||||
|
||||
ECHLD_STOP_CAPTURE = 'X', /* out: stop capturing */
|
||||
ECHLD_CAPTURE_STOPPED = 'x', /* in: capture has stopped, error otherwise */
|
||||
|
||||
ECHLD_ADD_NOTE = 'N', /* out: add a note to the capture */
|
||||
ECHLD_NOTE_ADDED = 'n', /* in: a note has being added */
|
||||
|
||||
ECHLD_APPLY_FILTER = 'A', /* in: apply a filter on the open file/capture */
|
||||
ECHLD_PACKET_LIST = 'l', /* out: a packet list, or error or timeout */
|
||||
/*(or what we have of it... or the next part... same reqh_id) */
|
||||
|
||||
ECHLD_SAVE_FILE = 'W', /* out: save the open file/capture */
|
||||
ECHLD_FILE_SAVED = 'w', /* in: the file was saved */
|
||||
|
||||
|
||||
EC_ACTUAL_ERROR = 0 /* this is not used in the protocol,
|
||||
it is returned for an error in calls returning a message type */
|
||||
};
|
||||
|
||||
enum _echld_error {
|
||||
ECHLD_NO_ERROR = 0,
|
||||
ECHLD_ERR_UNIMPLEMENTED,
|
||||
ECHLD_ERR_WRONG_MSG,
|
||||
ECHLD_ERR_NO_SUCH_CHILD,
|
||||
ECHLD_ERR_CHILD_EXISTS,
|
||||
ECHLD_ERR_UNKNOWN_PID,
|
||||
ECHLD_ERR_CANNOT_FORK,
|
||||
ECHLD_ERR_SET_FILTER,
|
||||
ECHLD_ERR_CANNOT_OPEN_FILE,
|
||||
ECHLD_ERR_CANNOT_OPEN_INTERFACE,
|
||||
ECHLD_ERR_CANNOT_START_CAPTURE,
|
||||
ECHLD_ERR_CANNOT_LIST_INTERFACES,
|
||||
ECHLD_CANNOT_SET_PARAM,
|
||||
ECHLD_CANNOT_GET_PARAM,
|
||||
ECHLD_ERR_CRASHED_CHILD,
|
||||
ECHLD_DECODE_ERROR,
|
||||
ECHLD_ERR_OTHER
|
||||
};
|
||||
|
||||
#ifdef __cplusplus
|
||||
};
|
||||
#endif
|
||||
|
||||
#endif
|
949
echld/parent.c
949
echld/parent.c
|
@ -1,949 +0,0 @@
|
|||
/* parent.c
|
||||
* epan working child API internals
|
||||
* Parent process routines and definitions
|
||||
*
|
||||
* Wireshark - Network traffic analyzer
|
||||
* By Gerald Combs <gerald@wireshark.org>
|
||||
* Copyright 1998 Gerald Combs
|
||||
*
|
||||
* Copyright (c) 2013 by Luis Ontanon <luis@ontanon.org>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License
|
||||
* as published by the Free Software Foundation; either version 2
|
||||
* of the License, or (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#include "config.h"
|
||||
|
||||
#include "echld-int.h"
|
||||
|
||||
/**
|
||||
PARENT and API
|
||||
**/
|
||||
|
||||
#define MAX_PENDING_REQS 16;
|
||||
|
||||
typedef struct _req {
|
||||
int reqh_id;
|
||||
echld_msg_cb_t cb;
|
||||
void* cb_data;
|
||||
struct timeval tv;
|
||||
} reqh_t;
|
||||
|
||||
typedef struct _hdlr {
|
||||
int id;
|
||||
echld_msg_type_t type;
|
||||
echld_msg_cb_t cb;
|
||||
void* cb_data;
|
||||
} hdlr_t;
|
||||
|
||||
typedef struct _echld_child {
|
||||
int chld_id;
|
||||
void* data;
|
||||
echld_new_cb_t cb;
|
||||
child_state_t state;
|
||||
GArray* handlers;
|
||||
GArray* reqs;
|
||||
} echld_t;
|
||||
|
||||
struct _echld_parent {
|
||||
echld_t* children;
|
||||
echld_reader_t reader;
|
||||
int dispatcher_fd;
|
||||
int dispatcher_pid;
|
||||
int reqh_id;
|
||||
GByteArray* snd;
|
||||
int closing;
|
||||
echld_parent_encoder_t* enc;
|
||||
parent_decoder_t* dec;
|
||||
} parent = {NULL,{NULL,0,NULL,-1,NULL,0},-1,-1,1,NULL,0,NULL,NULL};
|
||||
|
||||
|
||||
static int reqh_ids = 1;
|
||||
|
||||
|
||||
#ifdef DEBUG_PARENT
|
||||
|
||||
static int dbg_level = DEBUG_PARENT;
|
||||
|
||||
static void parent_dbg(int level, const char* fmt, ...) {
|
||||
va_list ap;
|
||||
char str[1024];
|
||||
|
||||
if (level > dbg_level) return;
|
||||
|
||||
va_start(ap,fmt);
|
||||
g_vsnprintf(str,1024,fmt,ap);
|
||||
va_end(ap);
|
||||
|
||||
fprintf(stderr,"ParentDebug: level=%d msg='%s'\n",level,str);
|
||||
fflush(stderr);
|
||||
}
|
||||
|
||||
#define PARENT_DBG(attrs) parent_dbg attrs
|
||||
#define PARENT_SEND(BYTEARR,CHILDNUM,TYPE,R_ID) do { long st = echld_write_frame(parent.dispatcher_fd, BYTEARR, CHILDNUM, TYPE, R_ID, NULL); PARENT_DBG((1,"SEND type='%s' chld_id=%d reqh_id=%d err_msg='%s'",TY(TYPE),CHILDNUM,R_ID, ( st >= 8 ? "ok" : ((st<0)?g_strerror(errno):"?") ) )); } while(0)
|
||||
|
||||
#else
|
||||
#define PARENT_DBG(attrs)
|
||||
#define PARENT_SEND(BYTEARR,CHILDNUM,TYPE,R_ID) echld_write_frame(parent.dispatcher_fd, BYTEARR, CHILDNUM, TYPE, R_ID, NULL)
|
||||
#endif
|
||||
|
||||
extern void echld_set_parent_dbg_level(int lvl) {
|
||||
(dbg_level = lvl);
|
||||
if (lvl > 6) {
|
||||
echld_common_set_dbg(lvl,stderr,"parent");
|
||||
}
|
||||
PARENT_DBG((0,"Debug Level Set: %d",lvl));
|
||||
}
|
||||
|
||||
|
||||
#define PARENT_FATAL(attrs) parent_fatal attrs
|
||||
|
||||
static void parent_fatal(int exit_code, const char* fmt, ...) {
|
||||
va_list ap;
|
||||
char str[1024];
|
||||
|
||||
va_start(ap,fmt);
|
||||
g_vsnprintf(str,1024,fmt,ap);
|
||||
va_end(ap);
|
||||
|
||||
#ifdef DEBUG_PARENT
|
||||
PARENT_DBG((0,"Fatal error: exit_code=%d str=%s",exit_code,str));
|
||||
#else
|
||||
fprintf(stderr,"Fatal error: exit_code=%d str=%s",exit_code,str);
|
||||
#endif
|
||||
|
||||
kill(parent.dispatcher_pid,SIGTERM);
|
||||
exit(exit_code);
|
||||
}
|
||||
|
||||
static void echld_cleanup(void) {
|
||||
#if 0
|
||||
int i;
|
||||
#endif
|
||||
|
||||
PARENT_DBG((4,"echld_cleanup starting"));
|
||||
|
||||
#if 0
|
||||
for (i=0;i<ECHLD_MAX_CHILDREN;i++) {
|
||||
if ( parent.children[i].handlers ) g_array_free(parent.children[i].handlers,TRUE);
|
||||
if ( parent.children[i].reqs ) g_array_free(parent.children[i].reqs,TRUE);
|
||||
};
|
||||
|
||||
g_free(parent.children);
|
||||
|
||||
g_byte_array_free(parent.snd,TRUE);
|
||||
#endif
|
||||
|
||||
PARENT_DBG((3,"echld_cleanup done"));
|
||||
|
||||
}
|
||||
|
||||
static void parent_child_cleanup(echld_t* c) {
|
||||
|
||||
PARENT_DBG((2,"cleanup chld_id=%d",c->chld_id));
|
||||
c->chld_id = -1;
|
||||
c->data = NULL;
|
||||
c->state = FREE;
|
||||
g_array_set_size(c->handlers,0);
|
||||
g_array_set_size(c->reqs,0);
|
||||
}
|
||||
|
||||
|
||||
void parent_reaper(int sig) {
|
||||
int pid;
|
||||
int status;
|
||||
|
||||
if (sig == SIGCHLD) {
|
||||
PARENT_FATAL((3333,"Must be SIGCHLD!"));
|
||||
}
|
||||
|
||||
pid = waitpid(-1, &status, WNOHANG);
|
||||
PARENT_DBG((2,"SIGCHLD pid=%d",pid));
|
||||
|
||||
if (pid == parent.dispatcher_pid) {
|
||||
|
||||
if (! parent.closing) {
|
||||
/* crashed */
|
||||
sleep(120);
|
||||
PARENT_FATAL((DISPATCHER_DEAD,"Dispatcher process dead"));
|
||||
}
|
||||
|
||||
return;
|
||||
} else {
|
||||
/* XXX: do we care? */
|
||||
return;
|
||||
}
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
static echld_bool_t hello_cb(echld_msg_type_t type, enc_msg_t* msg_buff, void* ud) {
|
||||
echld_init_t* init = (echld_init_t*)ud;
|
||||
char* err = NULL;
|
||||
int errnum = 0;
|
||||
|
||||
if (init && init->dispatcher_hello_cb) {
|
||||
switch(type) {
|
||||
case ECHLD_ERROR:
|
||||
parent.dec->error(msg_buff, &errnum ,&err);
|
||||
break;
|
||||
case ECHLD_TIMED_OUT:
|
||||
err = g_strdup("timedout");
|
||||
break;
|
||||
default:
|
||||
err = g_strdup_printf("Wrong MSG 'HELLO' expected, got '%s",TY(type));
|
||||
break;
|
||||
case ECHLD_HELLO:
|
||||
break;
|
||||
}
|
||||
|
||||
init->dispatcher_hello_cb(ud,err);
|
||||
if (err) g_free(err);
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/* will initialize epan registering protocols and taps */
|
||||
void echld_initialize(echld_init_t* init) {
|
||||
int from_disp[2];
|
||||
int to_disp[2];
|
||||
PARENT_DBG((1,"Echld Starting"));
|
||||
|
||||
if (!init) {
|
||||
PARENT_FATAL((NO_INITIALIZER,"Missing Initializer"));
|
||||
}
|
||||
|
||||
if (init->encoding != ECHLD_ENCODING_JSON) {
|
||||
PARENT_FATAL((UNIMPLEMENTED,"Only JSON implemented"));
|
||||
}
|
||||
|
||||
if ( pipe(to_disp) ) {
|
||||
PARENT_FATAL((DISPATCHER_PIPE_FAILED,"Failed to open pipe to dispatcher"));
|
||||
} else if( pipe(from_disp) ) {
|
||||
PARENT_FATAL((DISPATCHER_PIPE_FAILED,"Failed to open pipe from dispatcher"));
|
||||
} else {
|
||||
int pid;
|
||||
int i;
|
||||
|
||||
PARENT_DBG((3,"Pipes Opened fr[0]=%d fr[1]=%d to[0]=%d to[1]=%d",from_disp[0],from_disp[1],to_disp[0],to_disp[1]));
|
||||
|
||||
pid = fork();
|
||||
|
||||
if ( pid < 0 ) {
|
||||
PARENT_FATAL((CANNOT_FORK,"Failed to fork() reason='%s'",g_strerror(errno)));
|
||||
} else if ( pid == 0) {
|
||||
#ifdef PARENT_THREADS
|
||||
reader_realloc_buf = child_realloc_buff;
|
||||
#endif
|
||||
/* child code */
|
||||
echld_cleanup();
|
||||
|
||||
if (init->after_fork_cb)
|
||||
init->after_fork_cb(init->after_fork_cb_data);
|
||||
|
||||
echld_dispatcher_start(to_disp,from_disp,init->argv0,init->main);
|
||||
|
||||
PARENT_FATAL((SHOULD_HAVE_EXITED_BEFORE,"This shouldn't happen"));
|
||||
} else {
|
||||
/* parent code */
|
||||
#ifdef PARENT_THREADS
|
||||
reader_realloc_buf = parent_realloc_buff;
|
||||
#endif
|
||||
|
||||
/* echld_common_set_dbg(9,stderr,"parent"); */
|
||||
|
||||
PARENT_DBG((3,"Dispatcher forked"));
|
||||
|
||||
echld_get_all_codecs(NULL, NULL, &parent.enc, &parent.dec);
|
||||
parent.children = g_new0(echld_t,ECHLD_MAX_CHILDREN);
|
||||
parent.snd = g_byte_array_new();
|
||||
parent.dispatcher_fd = to_disp[1];
|
||||
parent.dispatcher_pid = pid;
|
||||
|
||||
echld_init_reader(&(parent.reader),from_disp[0],4096);
|
||||
|
||||
|
||||
for (i=0;i<ECHLD_MAX_CHILDREN;i++) {
|
||||
parent.children[i].chld_id = -1;
|
||||
parent.children[i].data = NULL;
|
||||
parent.children[i].state = FREE;
|
||||
parent.children[i].handlers = g_array_new(TRUE,TRUE,sizeof(hdlr_t));
|
||||
parent.children[i].reqs = g_array_new(TRUE,TRUE,sizeof(reqh_t));
|
||||
}
|
||||
|
||||
parent.children[0].chld_id = 0;
|
||||
parent.children[0].state = IDLE;
|
||||
|
||||
signal(SIGCHLD,parent_reaper);
|
||||
#if 0
|
||||
close(to_disp[0]);
|
||||
close(from_disp[1]);
|
||||
#endif
|
||||
if (init->dispatcher_hello_cb) echld_msgh(0, ECHLD_HELLO, hello_cb, init);
|
||||
|
||||
PARENT_DBG((3,"Ready"));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
extern echld_state_t echld_terminate(void) {
|
||||
|
||||
parent.closing = TRUE;
|
||||
PARENT_SEND(NULL,0,ECHLD_CLOSE_CHILD,++reqh_ids);
|
||||
|
||||
do {;} while(sleep(1)); /* wait a full sec without signals */
|
||||
|
||||
echld_cleanup();
|
||||
close(parent.dispatcher_fd);
|
||||
kill(parent.dispatcher_pid,SIGTERM);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
static echld_t* get_child(int id) {
|
||||
int i;
|
||||
for (i=0;i<ECHLD_MAX_CHILDREN;i++) {
|
||||
if (parent.children[i].chld_id == id) return &(parent.children[i]);
|
||||
};
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
|
||||
/* send a request */
|
||||
|
||||
int reqh_id_idx(echld_t* c, int reqh_id) {
|
||||
int i;
|
||||
int imax = c->reqs->len;
|
||||
reqh_t* rr = (reqh_t*)c->reqs->data;
|
||||
|
||||
for(i=0; i < imax ; i++) {
|
||||
if (rr[i].reqh_id == reqh_id)
|
||||
return i;
|
||||
}
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
|
||||
static echld_state_t reqh_snd(echld_t* c, echld_msg_type_t t, GByteArray* ba, echld_msg_cb_t resp_cb, void* cb_data) {
|
||||
int idx;
|
||||
reqh_t* r;
|
||||
int reqh_id = reqh_ids++;
|
||||
|
||||
if (!c) {
|
||||
PARENT_DBG((1,"REQH_SND: No such child"));
|
||||
return 1;
|
||||
}
|
||||
|
||||
idx = reqh_id_idx(c,-1);
|
||||
if (idx < 0) {
|
||||
reqh_t req;
|
||||
idx = c->reqs->len;
|
||||
g_array_append_val(c->reqs,req);
|
||||
}
|
||||
|
||||
r = &(((reqh_t*)c->reqs->data)[idx]);
|
||||
|
||||
r->reqh_id = reqh_id;
|
||||
r->cb = resp_cb;
|
||||
r->cb_data = cb_data;
|
||||
|
||||
gettimeofday(&(r->tv),NULL);
|
||||
|
||||
PARENT_DBG((4,"reqh_add: idx='%d'",idx));
|
||||
|
||||
PARENT_DBG((3,"REQH_SND: type='%s' chld_id=%d reqh_id=%d",TY(t), c->chld_id,reqh_id));
|
||||
|
||||
PARENT_SEND(ba,c->chld_id,t,reqh_id);
|
||||
|
||||
if (ba) g_byte_array_free(ba,TRUE); /* do we? */
|
||||
|
||||
return reqh_id;
|
||||
}
|
||||
|
||||
|
||||
extern echld_reqh_id_t echld_reqh(
|
||||
echld_chld_id_t child_id,
|
||||
echld_msg_type_t t,
|
||||
int usecs_timeout _U_,
|
||||
enc_msg_t* ba,
|
||||
echld_msg_cb_t resp_cb,
|
||||
void* cb_data) {
|
||||
return reqh_snd(get_child(child_id),t,ba,resp_cb,cb_data);
|
||||
}
|
||||
|
||||
/* get callback data for a live request */
|
||||
extern void* echld_reqh_get_data(int child_id, int reqh_id) {
|
||||
echld_t* c = get_child(child_id);
|
||||
int idx;
|
||||
|
||||
if (!c) return NULL;
|
||||
|
||||
idx = reqh_id_idx(c,reqh_id);
|
||||
|
||||
if (idx >= 0)
|
||||
return g_array_index(c->reqs, reqh_t, idx).cb_data;
|
||||
else
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* get the callback for a live request */
|
||||
extern echld_msg_cb_t echld_reqh_get_cb(int child_id, int reqh_id) {
|
||||
echld_t* c = get_child(child_id);
|
||||
int idx;
|
||||
|
||||
if (!c) return NULL;
|
||||
|
||||
idx = reqh_id_idx(c,reqh_id);
|
||||
|
||||
if (idx >= 0)
|
||||
return g_array_index(c->reqs, reqh_t, idx).cb;
|
||||
else
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* set callback data for a live request */
|
||||
extern gboolean echld_reqh_set_data(int child_id, int reqh_id, void* cb_data) {
|
||||
echld_t* c = get_child(child_id);
|
||||
int idx;
|
||||
|
||||
if (!c) return FALSE;
|
||||
|
||||
idx = reqh_id_idx(c,reqh_id);
|
||||
|
||||
if (idx < 0) return FALSE;
|
||||
|
||||
g_array_index(c->reqs, reqh_t, idx).cb_data = cb_data;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/* get the callback for a live request */
|
||||
extern gboolean echld_reqh_set_cb(int child_id, int reqh_id, echld_msg_cb_t cb){
|
||||
echld_t* c = get_child(child_id);
|
||||
int idx;
|
||||
|
||||
if (!c) return FALSE;
|
||||
|
||||
idx = reqh_id_idx(c,reqh_id);
|
||||
|
||||
if (idx < 0) return FALSE;
|
||||
|
||||
g_array_index(c->reqs, reqh_t, idx).cb = cb;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
||||
/* stop receiving a live request */
|
||||
extern gboolean echld_reqh_detach(int child_id, int reqh_id) {
|
||||
echld_t* c = get_child(child_id);
|
||||
int idx;
|
||||
|
||||
if (!c) return FALSE;
|
||||
|
||||
idx = reqh_id_idx(c,reqh_id);
|
||||
|
||||
if (idx < 0) return FALSE;
|
||||
|
||||
g_array_remove_index(c->reqs,idx);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
||||
static echld_bool_t parent_dead_child(echld_msg_type_t type, enc_msg_t* ba, void* data) {
|
||||
echld_t* c = (echld_t*)data;
|
||||
char* s;
|
||||
|
||||
if (type != ECHLD_CHILD_DEAD) {
|
||||
PARENT_DBG((1, "Must Be ECHLD_CHILD_DEAD"));
|
||||
return 1;
|
||||
}
|
||||
|
||||
if ( parent.dec->child_dead(ba,&s) ) {
|
||||
PARENT_DBG((1,"Dead Child[%d]: %s",c->chld_id,s));
|
||||
g_free(s);
|
||||
}
|
||||
|
||||
parent_child_cleanup(c);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static echld_bool_t parent_get_hello(echld_msg_type_t type, enc_msg_t* ba, void* data) {
|
||||
echld_t* c = (echld_t*)data;
|
||||
int err_id;
|
||||
char* err = NULL;
|
||||
|
||||
switch (type) {
|
||||
case ECHLD_HELLO:
|
||||
PARENT_DBG((1,"Child[%d]: =>IDLE",c->chld_id));
|
||||
c->state = IDLE;
|
||||
break;
|
||||
case ECHLD_ERROR:
|
||||
parent.dec->error(ba,&err_id,&err);
|
||||
break;
|
||||
case ECHLD_TIMED_OUT:
|
||||
err = g_strdup("timedout");
|
||||
break;
|
||||
default:
|
||||
err = g_strdup_printf("Wrong MSG 'HELLO' expected, got '%s",TY(type));
|
||||
break;
|
||||
}
|
||||
|
||||
if (c->cb)
|
||||
c->cb(c->data,err);
|
||||
|
||||
if (err) g_free(err);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
int chld_cmp(const void *a, const void *b) {
|
||||
return ((echld_t*)b)->chld_id - ((echld_t*)a)->chld_id;
|
||||
}
|
||||
|
||||
static int msgh_attach(echld_t* c, echld_msg_type_t t, echld_msg_cb_t resp_cb, void* cb_data);
|
||||
|
||||
static int next_chld_id = 1;
|
||||
|
||||
extern int echld_new(enc_msg_t* new_child_em, echld_new_cb_t cb, void* child_data) {
|
||||
echld_t* c = get_child(-1);
|
||||
|
||||
if (!c) return -1;
|
||||
|
||||
c->chld_id = (next_chld_id++);
|
||||
c->data = child_data;
|
||||
c->state = CREATING;
|
||||
c->cb = cb;
|
||||
|
||||
PARENT_DBG((1,"Child[%d]: =>CREATING",c->chld_id));
|
||||
|
||||
msgh_attach(c,ECHLD_CHILD_DEAD, parent_dead_child , c);
|
||||
reqh_snd(c, ECHLD_NEW_CHILD, (GByteArray*)new_child_em, parent_get_hello, c);
|
||||
|
||||
return c->chld_id;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/* XXX these fail silently */
|
||||
extern void* echld_get_data(int child_id) {
|
||||
echld_t* c = get_child(child_id);
|
||||
return c ? c->data : NULL;
|
||||
}
|
||||
|
||||
extern echld_state_t echld_set_data(echld_chld_id_t chld_id, void* data) {
|
||||
echld_t* c = get_child(chld_id);
|
||||
if (c) {
|
||||
c->data = data;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
static int msgh_idx(echld_t* c, int msgh_id) {
|
||||
int i = 0;
|
||||
int imax = c->handlers->len;
|
||||
|
||||
for (i=0;i<imax;i++) {
|
||||
if (((hdlr_t*)(c->handlers->data))[i].id == msgh_id) return i;
|
||||
}
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
/* start a message handler */
|
||||
static int msgh_attach(echld_t* c, echld_msg_type_t t, echld_msg_cb_t resp_cb, void* cb_data) {
|
||||
hdlr_t h;
|
||||
static int msgh_id = 1;
|
||||
|
||||
h.id = msgh_id++;
|
||||
h.type = t;
|
||||
h.cb = resp_cb;
|
||||
h.cb_data = cb_data;
|
||||
|
||||
g_array_append_val(c->handlers,h);
|
||||
return 0;
|
||||
}
|
||||
|
||||
extern int echld_msgh(int child_id, echld_msg_type_t t, echld_msg_cb_t resp_cb, void* cb_data) {
|
||||
echld_t* c = get_child(child_id);
|
||||
|
||||
if (c) return msgh_attach(c,t,resp_cb,cb_data);
|
||||
else return -1;
|
||||
}
|
||||
|
||||
|
||||
/* stop it */
|
||||
static echld_state_t msgh_detach(echld_t* c, int msgh_id) {
|
||||
int idx = msgh_idx(c,msgh_id);
|
||||
|
||||
if (idx < 0) return -1;
|
||||
|
||||
g_array_remove_index(c->handlers,idx);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
extern echld_state_t echld_msgh_detach(int child_id, int msgh_id) {
|
||||
echld_t* c = get_child(child_id);
|
||||
return msgh_detach(c,msgh_id);
|
||||
}
|
||||
|
||||
/* get a msgh's data */
|
||||
|
||||
static void* msgh_get_data(echld_t* c, int msgh_id) {
|
||||
int idx = msgh_idx(c,msgh_id);
|
||||
|
||||
if (idx < 0) return NULL;
|
||||
|
||||
return ((hdlr_t*)(c->handlers->data))[idx].cb_data;
|
||||
}
|
||||
|
||||
extern void* echld_msgh_get_data(int child_id, int msgh_id) {
|
||||
echld_t* c = get_child(child_id);
|
||||
return msgh_get_data(c,msgh_id);
|
||||
}
|
||||
|
||||
/* get a msgh's cb */
|
||||
static echld_msg_cb_t msgh_get_cb(echld_t* c, int msgh_id) {
|
||||
int idx = msgh_idx(c,msgh_id);
|
||||
|
||||
if (idx < 0) return NULL;
|
||||
|
||||
return ((hdlr_t*)(c->handlers->data))[idx].cb;
|
||||
}
|
||||
|
||||
extern echld_msg_cb_t echld_msgh_get_cb(int child_id, int msgh_id) {
|
||||
echld_t* c = get_child(child_id);
|
||||
return msgh_get_cb(c,msgh_id);
|
||||
}
|
||||
|
||||
/* get a msgh's type */
|
||||
static echld_msg_type_t msgh_get_type(echld_t* c, int msgh_id) {
|
||||
int idx = msgh_idx(c,msgh_id);
|
||||
|
||||
if (idx < 0) return EC_ACTUAL_ERROR;
|
||||
|
||||
return ((hdlr_t*)(c->handlers->data))[idx].type;
|
||||
}
|
||||
|
||||
extern echld_msg_type_t echld_msgh_get_type(int child_id, int msgh_id) {
|
||||
echld_t* c = get_child(child_id);
|
||||
return c ? msgh_get_type(c,msgh_id) : EC_ACTUAL_ERROR;
|
||||
}
|
||||
|
||||
/* get it all from a msgh */
|
||||
static echld_state_t msgh_get_all(echld_t* c, int msgh_id, echld_msg_type_t* t, echld_msg_cb_t* cb, void** data) {
|
||||
int idx = msgh_idx(c,msgh_id);
|
||||
hdlr_t* h;
|
||||
|
||||
if (idx < 0) return -1;
|
||||
|
||||
h = &(((hdlr_t*)(c->handlers->data))[idx]);
|
||||
|
||||
if (t) *t = h->type;
|
||||
if (cb) *cb = h->cb;
|
||||
if (data) *data = h->cb_data;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
extern gboolean echld_msgh_get_all(int child_id, int msgh_id, echld_msg_type_t* t, echld_msg_cb_t* cb, void** data) {
|
||||
echld_t* c = get_child(child_id);
|
||||
return c && msgh_get_all(c,msgh_id,t,cb,data);
|
||||
}
|
||||
|
||||
static echld_state_t msgh_set_all(echld_t* c, int msgh_id, echld_msg_type_t t, echld_msg_cb_t cb, void* data) {
|
||||
int idx = msgh_idx(c,msgh_id);
|
||||
hdlr_t* h;
|
||||
|
||||
if (idx < 0) return -1;
|
||||
|
||||
h = &(((hdlr_t*)(c->handlers->data))[idx]);
|
||||
|
||||
h->type = t;
|
||||
h->cb = cb;
|
||||
h->cb_data = data;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
extern gboolean echld_msgh_set_all(int child_id, int msgh_id, echld_msg_type_t t, echld_msg_cb_t cb, void* data) {
|
||||
echld_t* c = get_child(child_id);
|
||||
return c ? msgh_set_all(c,msgh_id,t,cb,data) : FALSE;
|
||||
}
|
||||
|
||||
/* set a msgh's data */
|
||||
static gboolean msgh_set_data(echld_t* c, int msgh_id, void* data) {
|
||||
int idx = msgh_idx(c,msgh_id);
|
||||
|
||||
if (idx < 0) return FALSE;
|
||||
|
||||
((hdlr_t*)(c->handlers->data))[idx].cb_data = data;
|
||||
|
||||
return TRUE;
|
||||
|
||||
}
|
||||
|
||||
extern gboolean echld_msgh_set_data(int child_id, int msgh_id, void* data){
|
||||
echld_t* c = get_child(child_id);
|
||||
return c ? msgh_set_data(c,msgh_id,data) : FALSE;
|
||||
}
|
||||
|
||||
/* set a msgh's cb */
|
||||
extern gboolean msgh_set_cb(echld_t* c, int msgh_id, echld_msg_cb_t cb) {
|
||||
int idx = msgh_idx(c,msgh_id);
|
||||
|
||||
if (idx < 0) return FALSE;
|
||||
|
||||
((hdlr_t*)(c->handlers->data))[idx].cb = cb;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
extern gboolean echld_msgh_set_cb(int child_id, int msgh_id, echld_msg_cb_t cb) {
|
||||
echld_t* c = get_child(child_id);
|
||||
return c ? msgh_set_cb(c,msgh_id,cb) : FALSE;
|
||||
}
|
||||
|
||||
/* set a msgh's type */
|
||||
|
||||
static gboolean msgh_set_type(echld_t* c, int msgh_id, echld_msg_type_t t) {
|
||||
int idx = msgh_idx(c,msgh_id);
|
||||
|
||||
if (idx < 0) return FALSE;
|
||||
|
||||
((hdlr_t*)(c->handlers->data))[idx].type = t;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
extern gboolean echld_msgh_set_type(int child_id, int msgh_id, echld_msg_type_t t) {
|
||||
echld_t* c = get_child(child_id);
|
||||
return c ? msgh_set_type(c,msgh_id,t) : FALSE;
|
||||
}
|
||||
|
||||
|
||||
/* call cb(id,child_data,cb_data) for each child*/
|
||||
extern void echld_foreach_child(echld_iter_cb_t cb, void* cb_data) {
|
||||
int i;
|
||||
for(i=0;i<ECHLD_MAX_CHILDREN;i++) {
|
||||
echld_t* c = &(parent.children[i]);
|
||||
cb(c->chld_id,c->data,cb_data);
|
||||
}
|
||||
}
|
||||
|
||||
static reqh_t* get_req(echld_t* c, int reqh_id) {
|
||||
int idx = reqh_id_idx(c,reqh_id);
|
||||
if(idx < 0) return NULL;
|
||||
|
||||
return ((reqh_t*)(c->reqs->data))+idx;
|
||||
}
|
||||
|
||||
static hdlr_t* get_next_hdlr_for_type(echld_t* c, echld_msg_type_t t, int* cookie) {
|
||||
int imax = c->handlers->len;
|
||||
hdlr_t* r = NULL;
|
||||
|
||||
for (;(*cookie)<imax;(*cookie)++) {
|
||||
if (((hdlr_t*)(c->handlers->data))[*cookie].type == t) {
|
||||
r = &( ((hdlr_t*)(c->handlers->data))[*cookie] );
|
||||
(*cookie)++;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return r;
|
||||
}
|
||||
|
||||
static long parent_read_frame(guint8* b, size_t len, echld_chld_id_t chld_id, echld_msg_type_t t, echld_reqh_id_t reqh_id, void* data _U_) {
|
||||
echld_t* c = get_child(chld_id);
|
||||
GByteArray* ba = g_byte_array_new();
|
||||
|
||||
PARENT_DBG((1,"MSG_IN<- ch=%d t='%s' rh=%d",chld_id,TY(t),reqh_id));
|
||||
g_byte_array_append(ba,b, (guint)len);
|
||||
|
||||
if (c) {
|
||||
reqh_t* r = get_req(c, reqh_id);
|
||||
int i;
|
||||
hdlr_t* h;
|
||||
gboolean go_ahead = TRUE;
|
||||
|
||||
if (r) { /* got that reqh_id */
|
||||
if (r->cb) {
|
||||
go_ahead = r->cb(t,ba,r->cb_data);
|
||||
}
|
||||
|
||||
r->reqh_id = -1;
|
||||
r->cb = NULL;
|
||||
r->cb_data = 0;
|
||||
r->tv.tv_sec = 0;
|
||||
r->tv.tv_usec = 0;
|
||||
|
||||
PARENT_DBG((2,"handled by reqh_id=%d msg='%s'",reqh_id,go_ahead?"retrying":"done"));
|
||||
}
|
||||
|
||||
i=0;
|
||||
while(go_ahead && ( h = get_next_hdlr_for_type(c,t,&i))) {
|
||||
if (h->cb)
|
||||
go_ahead = h->cb(t,ba,h->cb_data);
|
||||
|
||||
PARENT_DBG((2,"handled by t='%s' msgh_id=%d msg='%s'",TY(h->type), h->id,go_ahead?"retrying":"done"));
|
||||
}
|
||||
} else {
|
||||
PARENT_DBG((1,"parent_read_frame: No such child"));
|
||||
}
|
||||
|
||||
g_byte_array_free(ba,TRUE);
|
||||
return 1;
|
||||
}
|
||||
|
||||
extern int echld_fdset(fd_set* rfds, fd_set* efds) {
|
||||
FD_SET(parent.reader.fd, rfds);
|
||||
FD_SET(parent.reader.fd, efds);
|
||||
FD_SET(parent.dispatcher_fd, efds);
|
||||
return 2;
|
||||
}
|
||||
|
||||
extern int echld_fd_read(fd_set* rfds, fd_set* efds) {
|
||||
int r_nfds=0;
|
||||
if (FD_ISSET(parent.reader.fd,efds) || FD_ISSET(parent.dispatcher_fd,efds) ) {
|
||||
/* Handle errored dispatcher */
|
||||
PARENT_DBG((1,"parent errored"));
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (FD_ISSET(parent.reader.fd,rfds)) {
|
||||
PARENT_DBG((3,"reading from dispatcher"));
|
||||
echld_read_frame(&(parent.reader),parent_read_frame,&(parent));
|
||||
}
|
||||
|
||||
return r_nfds;
|
||||
}
|
||||
|
||||
extern int echld_select(int nfds _U_, fd_set* rfds, fd_set* wfds, fd_set* efds, struct timeval* timeout) {
|
||||
fd_set my_rfds, my_wfds, my_efds;
|
||||
int r_nfds;
|
||||
|
||||
|
||||
if (rfds == NULL) { rfds = &my_rfds; FD_ZERO(rfds); }
|
||||
if (wfds == NULL) { wfds = &my_wfds; FD_ZERO(wfds); }
|
||||
if (efds == NULL) { efds = &my_efds; FD_ZERO(efds); }
|
||||
|
||||
echld_fdset(rfds,efds);
|
||||
|
||||
PARENT_DBG((5,"Select()"));
|
||||
r_nfds = select(FD_SETSIZE, rfds, wfds, efds, timeout);
|
||||
|
||||
echld_fd_read(rfds,efds);
|
||||
|
||||
return r_nfds ;
|
||||
}
|
||||
|
||||
extern echld_state_t echld_wait(struct timeval* timeout) {
|
||||
if ( echld_select(0, NULL, NULL, NULL, timeout) < 0) {
|
||||
return -1;
|
||||
} else {
|
||||
return ECHLD_OK;
|
||||
}
|
||||
}
|
||||
|
||||
enc_msg_t* echld_new_child_params(void) {
|
||||
return (enc_msg_t*)g_byte_array_new();
|
||||
}
|
||||
|
||||
enc_msg_t* echld_new_child_params_merge(enc_msg_t* em1, enc_msg_t* em2) {
|
||||
GByteArray* ba = g_byte_array_new();
|
||||
GByteArray* b1 = (GByteArray*)em1;
|
||||
GByteArray* b2 = (GByteArray*)em2;
|
||||
|
||||
g_byte_array_append(ba,b1->data,b1->len);
|
||||
g_byte_array_append(ba,b2->data,b2->len);
|
||||
|
||||
return (enc_msg_t*)ba;
|
||||
}
|
||||
|
||||
char* echld_new_child_params_str(enc_msg_t* em, const char* prefix, const char* postfix, int trunc_n, const char* fmt) {
|
||||
GByteArray* ba = (GByteArray*)em;
|
||||
GString* str = g_string_new(prefix);
|
||||
char* p = (char*) ba->data;
|
||||
int tot_len = ba->len;
|
||||
long rem = tot_len;
|
||||
p[rem-1] = '\0'; /* make sure last char is null */
|
||||
|
||||
while(rem > 2) {
|
||||
char* param = p;
|
||||
long param_len = strlen(param)+1;
|
||||
char* value = p + param_len;
|
||||
long value_len;
|
||||
|
||||
rem -= param_len;
|
||||
|
||||
if (rem < 0) {
|
||||
g_string_free(str,TRUE);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
value_len = strlen(value)+1;
|
||||
|
||||
rem -= value_len;
|
||||
p = value + value_len;
|
||||
|
||||
if (rem < 0) {
|
||||
g_string_free(str,TRUE);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
g_string_append_printf(str,fmt,param,value);
|
||||
}
|
||||
g_string_truncate(str, str->len - trunc_n);
|
||||
g_string_append(str,postfix);
|
||||
return g_string_free(str,FALSE);
|
||||
}
|
||||
|
||||
void echld_new_child_params_add_params(enc_msg_t* em, ...) {
|
||||
GByteArray* ba = (GByteArray*) em;
|
||||
va_list ap;
|
||||
|
||||
va_start(ap,em);
|
||||
do {
|
||||
char* param_str = va_arg(ap, char*);
|
||||
|
||||
if (param_str) {
|
||||
char* val_str = va_arg(ap, char*);
|
||||
|
||||
g_byte_array_append(ba, (guint8*) param_str, (guint)strlen(param_str)+1);
|
||||
g_byte_array_append(ba, (guint8*) val_str, (guint)strlen(val_str)+1);
|
||||
continue;
|
||||
}
|
||||
|
||||
break;
|
||||
} while(1);
|
||||
va_end(ap);
|
||||
|
||||
}
|
||||
|
||||
|
422
echld_test.c
422
echld_test.c
|
@ -1,422 +0,0 @@
|
|||
/* echld-test.c
|
||||
* basic test framework for echld
|
||||
*
|
||||
* Wireshark - Network traffic analyzer
|
||||
* By Gerald Combs <gerald@wireshark.org>
|
||||
* Copyright 1998 Gerald Combs
|
||||
*
|
||||
* Copyright (c) 2013 by Luis Ontanon <luis@ontanon.org>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License
|
||||
* as published by the Free Software Foundation; either version 2
|
||||
* of the License, or (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#include <config.h>
|
||||
|
||||
#ifdef HAVE_FCNTL_H
|
||||
#include <fcntl.h>
|
||||
#endif
|
||||
|
||||
#ifdef HAVE_SYS_TYPES_H
|
||||
# include <sys/types.h>
|
||||
#endif
|
||||
|
||||
#include <sys/uio.h>
|
||||
|
||||
#ifdef HAVE_UNISTD_H
|
||||
#include <unistd.h>
|
||||
#endif
|
||||
|
||||
#include <signal.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#include <glib.h>
|
||||
#include <glib/gprintf.h>
|
||||
|
||||
#include "echld/echld.h"
|
||||
#include "echld/echld-util.h"
|
||||
|
||||
#include "epan/epan.h"
|
||||
#include "wsutil/str_util.h"
|
||||
|
||||
typedef char* (*cmd_cb_t)(char** params, char** err);
|
||||
|
||||
typedef struct _cmd_t {
|
||||
const char* txt;
|
||||
cmd_cb_t cb;
|
||||
int args_taken;
|
||||
const char* help;
|
||||
} cmd_t;
|
||||
|
||||
|
||||
#define MAX_PARAMSETS 16
|
||||
|
||||
static enc_msg_t* paramsets[MAX_PARAMSETS] = {
|
||||
NULL,NULL,NULL,NULL, NULL,NULL,NULL,NULL,
|
||||
NULL,NULL,NULL,NULL, NULL,NULL,NULL,NULL
|
||||
};
|
||||
|
||||
static int nps = 0;
|
||||
|
||||
static char* ps_cmd(char** pars _U_, char** err _U_) {
|
||||
int n_id = nps++;
|
||||
|
||||
if (n_id >= MAX_PARAMSETS) {
|
||||
*err = g_strdup("Max Num of Paramsets reached");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
paramsets[n_id] = echld_new_child_params();
|
||||
|
||||
return g_strdup_printf("New Paramset ps_id=%d",n_id);
|
||||
}
|
||||
|
||||
static char* psadd_cmd(char** params _U_, char** err) {
|
||||
int ps_id = (int) strtol(params[1], NULL, 10);
|
||||
|
||||
if (ps_id >= nps) {
|
||||
*err = g_strdup_printf("No paramset pd_is=%d",ps_id);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
echld_new_child_params_add_params(paramsets[ps_id], params[2], params[3], NULL);
|
||||
|
||||
return g_strdup_printf("PSAdd ps_id=%d %s='%s'", ps_id, params[2], params[3]);
|
||||
}
|
||||
|
||||
static char* psmerge_cmd(char** params, char** err) {
|
||||
int ps1_id = (int) strtol(params[1], NULL, 10);
|
||||
int ps2_id = (int) strtol(params[2], NULL, 10);
|
||||
int n_id;
|
||||
|
||||
if (ps1_id >= nps) {
|
||||
*err = g_strdup_printf("No paramset pd_is=%d",ps1_id);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if (ps2_id >= nps) {
|
||||
*err = g_strdup_printf("No paramset pd_is=%d",ps2_id);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
n_id = nps++;
|
||||
|
||||
if (n_id >= MAX_PARAMSETS) {
|
||||
*err = g_strdup_printf("Max Num of Paramsets reached");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
paramsets[n_id] = echld_new_child_params_merge(paramsets[ps1_id],paramsets[ps2_id]);
|
||||
|
||||
return g_strdup_printf("Merged Paramset ps1_id=%d ps2_id=%d ps_id=%d",ps1_id, ps2_id, n_id);
|
||||
}
|
||||
|
||||
static char* new_child_cmd(char** params, char** err) {
|
||||
int ps_id = (int) strtol(params[1], NULL, 10);
|
||||
int child;
|
||||
|
||||
if (ps_id >= nps) {
|
||||
*err = g_strdup_printf("No paramset pd_is=%d",ps_id);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
child = echld_new(paramsets[ps_id],NULL,NULL);
|
||||
|
||||
if (child <= 0) {
|
||||
*err = g_strdup("No child\n");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return g_strdup_printf("New chld_id=%d\n",child);
|
||||
}
|
||||
|
||||
|
||||
void ping_cb(long usec, void* data) {
|
||||
int ping_id = *((int*)data);
|
||||
|
||||
if (usec >= 0) {
|
||||
fprintf(stdout, "Ping ping_id=%d returned in %dus\n",ping_id,(int)usec);
|
||||
} else {
|
||||
fprintf(stdout, "Ping ping_id=%d erored\n",ping_id);
|
||||
}
|
||||
|
||||
g_free(data);
|
||||
}
|
||||
|
||||
|
||||
static char* ping_cmd(char** params, char** err) {
|
||||
int child = (int) strtol(params[1], NULL, 10);
|
||||
static int ping_id = 0;
|
||||
int* ping_data = g_new(int,1);
|
||||
|
||||
*ping_data = ping_id++;
|
||||
|
||||
if (!echld_ping(child,ping_cb,ping_data)) {
|
||||
*err = g_strdup_printf("Could not send ping child=%d",child);
|
||||
return NULL;
|
||||
} else {
|
||||
return g_strdup_printf("Ping sent child=%d",child);
|
||||
}
|
||||
}
|
||||
|
||||
void param_cb(const char* param, const char* value, const char* error, void* data _U_) {
|
||||
if (error) {
|
||||
fprintf(stdout, "Param Set Error msg=%s\n", error );
|
||||
} else {
|
||||
fprintf(stdout, "Param: param='%s' val='%s'\n", param, value );
|
||||
}
|
||||
}
|
||||
|
||||
static char* set_cmd(char** params, char** err) {
|
||||
int child = (int) strtol(params[1], NULL, 10);
|
||||
char* param = params[2];
|
||||
char* value = params[3];
|
||||
|
||||
if ( ! echld_set_param(child,param,value,param_cb,NULL) ) {
|
||||
*err = g_strdup_printf("Failed to SET child=%d param='%s' value='%s'",child,param,value);
|
||||
return NULL;
|
||||
} else {
|
||||
return g_strdup_printf("Set command sent child=%d param='%s' value='%s'",child,param,value);
|
||||
}
|
||||
}
|
||||
|
||||
static char* get_cmd(char** params, char** err) {
|
||||
int child = (int) strtol(params[1], NULL, 10);
|
||||
char* param = params[2];
|
||||
|
||||
if ( ! echld_get_param(child,param,param_cb,NULL) ) {
|
||||
*err = g_strdup_printf("Failed to GET child=%d param='%s'",child,param);
|
||||
return NULL;
|
||||
} else {
|
||||
return g_strdup_printf("Get command sent child=%d param='%s'",child,param);
|
||||
}
|
||||
}
|
||||
|
||||
static void close_cb(const char* error, void* data) {
|
||||
if (error) {
|
||||
fprintf(stdout, "Close Error msg=%s\n", error );
|
||||
} else {
|
||||
fprintf(stdout, "Closed: child=%d\n", *((int*)data) );
|
||||
}
|
||||
}
|
||||
|
||||
static char* close_cmd(char** params, char** err) {
|
||||
int child = (int) strtol(params[1], NULL, 10);
|
||||
int* cmdp = g_new(int,1);
|
||||
*cmdp = child;
|
||||
if ( ! echld_close(child,close_cb,cmdp) ) {
|
||||
*err = g_strdup_printf("Could not close child=%d",child);
|
||||
return NULL;
|
||||
} else {
|
||||
return g_strdup_printf("CLose command sent child=%d",child);
|
||||
}
|
||||
}
|
||||
int keep_going = 1;
|
||||
|
||||
static char* quit_cmd(char** params _U_, char** err _U_) {
|
||||
keep_going = 0;
|
||||
return g_strdup("Quitting");
|
||||
}
|
||||
|
||||
static char* help_cmd(char**, char**);
|
||||
|
||||
static char* open_file_cmd(char** pars _U_, char** err _U_) {
|
||||
*err = g_strdup("Not Implemented");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static char* prepare_capture_cmd(char** pars _U_, char** err _U_) {
|
||||
*err = g_strdup("Not Implemented");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static char* start_capture_cmd(char** pars _U_, char** err _U_) {
|
||||
*err = g_strdup("Not Implemented");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static char* get_sum_cmd(char** pars _U_, char** err _U_) {
|
||||
*err = g_strdup("Not Implemented");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static char* get_tree_cmd(char** pars _U_, char** err _U_) {
|
||||
*err = g_strdup("Not Implemented");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static char* get_buf_cmd(char** pars _U_, char** err _U_) {
|
||||
*err = g_strdup("Not Implemented");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static char* stop_cmd(char** pars _U_, char** err _U_) {
|
||||
*err = g_strdup("Not Implemented");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static char* note_cmd(char** pars _U_, char** err _U_) {
|
||||
*err = g_strdup("Not Implemented");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static char* apply_cmd(char** pars _U_, char** err _U_) {
|
||||
*err = g_strdup("Not Implemented");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static char* save_cmd(char** pars _U_, char** err _U_) {
|
||||
*err = g_strdup("Not Implemented");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static char* run_cmd(char** pars, char** err _U_);
|
||||
|
||||
|
||||
|
||||
|
||||
cmd_t commands[] = {
|
||||
{ "QUIT", quit_cmd, 0, "QUIT"},
|
||||
{ "HELP", help_cmd, 0, "HELP"},
|
||||
{ "RUN", run_cmd, 1, "RUN filename"},
|
||||
{ "PS", ps_cmd, 1, "PS [dummy]"},
|
||||
{ "PSADD", psadd_cmd, 4, "PSADD ps_id param value"},
|
||||
{ "PSMERGE", psmerge_cmd, 4, "PSMERGE ps_id ps_id"},
|
||||
{ "NEW", new_child_cmd, 1, "NEW ps_id"},
|
||||
{ "PING", ping_cmd, 1, "PING child_id"},
|
||||
{ "SET", set_cmd, 3, "SET child_id param_name param_val"},
|
||||
{ "GET", get_cmd, 2, "GET child_id param_name"},
|
||||
{ "CLOSE", close_cmd, 1, "CLOSE child_id"},
|
||||
{ "FILE", open_file_cmd, 2, "FILE child_id filename"},
|
||||
{ "PREP", prepare_capture_cmd, 2, "PREP child_id intfname params"},
|
||||
{ "START",start_capture_cmd,1,"START child_id"},
|
||||
{ "SUM", get_sum_cmd,2,"SUM child_id packet_range"},
|
||||
{ "TREE", get_tree_cmd,2,"TREE child_id packet_range"},
|
||||
{ "BUFF", get_buf_cmd,2,"BUFF child_id buffer_name"},
|
||||
{ "STOP", stop_cmd,1,"STOP child_id"},
|
||||
{ "NOTE", note_cmd,1,"NOTE child_id framenum note..."},
|
||||
{ "APPLY", apply_cmd,1,"APPLY child_id dfilter"},
|
||||
{ "SAVE", save_cmd,1,"SAVE child_id filename params"},
|
||||
{ NULL, NULL, 0, NULL }
|
||||
};
|
||||
|
||||
static char* help_cmd(char** params _U_, char** err _U_) {
|
||||
GString* out = g_string_new("Commands:\n");
|
||||
cmd_t* c = commands;
|
||||
|
||||
for (;c->txt;c++) {
|
||||
g_string_append_printf(out,"%s\n",c->help);
|
||||
}
|
||||
return g_string_free(out,FALSE);
|
||||
}
|
||||
|
||||
|
||||
static int invoke_cmd(FILE* in_fp) {
|
||||
size_t len;
|
||||
char* cmd_line;
|
||||
|
||||
if(( cmd_line = fgetln(in_fp,&len) )) {
|
||||
cmd_t* c = commands;
|
||||
cmd_line[len] = 0;
|
||||
g_strchomp(cmd_line);
|
||||
|
||||
for (;c->txt;c++) {
|
||||
if ( strcasestr(cmd_line, c->txt) == cmd_line ) {
|
||||
char** params = g_strsplit(cmd_line, " ", c->args_taken+1);
|
||||
char* err = NULL;
|
||||
char* str = c->cb(params,&err);
|
||||
|
||||
if (err) {
|
||||
fprintf(stdout, "Error: %s\n", err);
|
||||
g_free(err);
|
||||
} else {
|
||||
fprintf(stdout, "%s\n", str);
|
||||
g_free(str);
|
||||
}
|
||||
|
||||
g_strfreev(params);
|
||||
return TRUE;
|
||||
}
|
||||
}
|
||||
|
||||
fprintf(stdout, "Error: no such command %s\n", cmd_line);
|
||||
return TRUE;
|
||||
} else {
|
||||
return FALSE;
|
||||
}
|
||||
}
|
||||
|
||||
static char* run_cmd(char** pars, char** err _U_) {
|
||||
FILE* fp = ws_stdio_fopen(pars[1],"r");
|
||||
while(invoke_cmd(fp)) { ; }
|
||||
fclose(fp);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
|
||||
int got_param = 0;
|
||||
|
||||
|
||||
int main(int argc _U_, char** argv _U_) {
|
||||
struct timeval tv;
|
||||
int tot_cycles = 0;
|
||||
echld_init_t init = {ECHLD_ENCODING_JSON,argv[0],main,NULL,NULL,NULL,NULL,NULL,NULL};
|
||||
|
||||
|
||||
tv.tv_sec = 5;
|
||||
tv.tv_usec = 0;
|
||||
|
||||
echld_set_parent_dbg_level(5);
|
||||
|
||||
echld_initialize(&init);
|
||||
|
||||
do {
|
||||
fd_set rfds;
|
||||
fd_set efds;
|
||||
int nfds;
|
||||
|
||||
FD_ZERO(&rfds);
|
||||
FD_ZERO(&efds);
|
||||
FD_SET(0,&rfds);
|
||||
FD_SET(0,&efds);
|
||||
|
||||
nfds = echld_select(FD_SETSIZE, &rfds, NULL, &efds, &tv);
|
||||
|
||||
if (FD_ISSET(0,&rfds)) {
|
||||
invoke_cmd(stdin);
|
||||
}
|
||||
|
||||
tot_cycles++;
|
||||
} while( keep_going );
|
||||
|
||||
fprintf(stderr, "Done: tot_cycles=%d\n", tot_cycles );
|
||||
|
||||
echld_terminate();
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Editor modelines - http://www.wireshark.org/tools/modelines.html
|
||||
*
|
||||
* Local variables:
|
||||
* c-basic-offset: 8
|
||||
* tab-width: 8
|
||||
* indent-tabs-mode: t
|
||||
* End:
|
||||
*
|
||||
* vi: set shiftwidth=8 tabstop=8 noexpandtab:
|
||||
* :indentSize=8:tabSize=8:noTabs=false:
|
||||
*/
|
Loading…
Reference in New Issue