Implement little endian support for tvb_get_bits family of functions.
The big/little endian refers to bit numbering within an octet. In big
endian, the most significant bit is considered bit 0, while in little
endian the least significant bit is considered bit 0.
Add encoding parameters to proto tree bits format family functions.
Specify ENC_BIG_ENDIAN in all dissectors using these functions except in
USB HID that requires ENC_LITTLE_ENDIAN to work correctly.
When formatting bits values, always display most significant bit on the
leftmost position regardless of the encoding. This results in no gaps
between octets and makes the displayed value comprehensible.
Close#4478Fix#17014
IEC 61850 is directly over Ethernet, so use set_actual_length
like other such protocols so that the Ethernet dissector has a
chance to detect and dissect trailers / FCS.
And do it in the template from which packet-sv.c is generated, rather
than in packet-sv.c, so that it doesn't get overwritten if somebody
regenerates the sv dissector.
6caf24e966 uncovered a bug
in the h225 dissector where h245_list was used in a path that wasn't
guaranteed to be initialized. It wasn't causing fuzz errors before
because the memory was at least being zeroed, although that state was
still technically invalid.
Initialize and call the tvb_lists in dissect_h225_h225_RasMessage, which
is the other h225 entrypoint, just like dissect_h225_H323UserInformation
(the other dissector entrypoint) was already doing.
Allocate the root node in the same pool as the list itself, and make
that pool explicit so we can pass the pinfo scope instead of using the
global packet pool.
A few of them just needed scratch memory, so allocate and free it
manually after doing any exception-raising checks.
A few others were returning memory, and needed conversion to accept a
wmem scope argument.
We prefer pinfo->pool over the global wmem_packet_scope() now. Convert a
few more asn1 dissectors. After this commit, just three asn1 dissectors
remain.
Part 2/2 as the commits were too big for CI.
Largely find/replace, with a few manual tweaks. Then regenerate the asn1
dissector sources and make sure everything still builds. There are a
handful of cases I skipped as too complex, but this covers most of the
asn1 dissectors.
Part 1/2 as the commits were too big for CI.
Largely find/replace, with a few manual tweaks. Then regenerate the asn1
dissector sources and make sure everything still builds. There are a
handful of cases I skipped as too complex, but this covers most of the
asn1 dissectors.
This header was installed incorrectly to epan/wmem_scopes.h.
Instead of creating additional installation rules for a single
header in a subfolder (kept for backward compatibility) just
rename the standard "epan/wmem/wmem.h" include to
"epan/wmem_scopes.h" and fix the documentation.
Now the header is installed *correctly* to epan/wmem_scopes.h.
We use some private functions from MIT kerberos:
- krb5_free_enc_tkt_part()
- decode_krb5_enc_tkt_part()
- encode_krb5_enc_tkt_part()
but we already do that for krb5int_c_mandatory_cksumtype(),
which is newer than the above functions.
We use all of them only under HAVE_KRB5_PAC_VERIFY,
so we don't seem to need additional configure tests.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Pascal Quantin