This way ggsn.c is shrinked in size and get rid of a lot of code there,
which is of no interest unless the reader is interested in that really
specific part.
Change-Id: Ieaa7e71f17c7fd9377c76ef53362eab596d669a6
It's clearer having size-related checks in one place for a data structure
in46_addr, instead of spread around the code.
Change-Id: Idc94bf0c8c01bb5a30e36d3c284b99f66b972abb
The libgtp application may have already allocated related resources
associated to the pdp context, so we need to signal its deletion in
order to let the application free the resources.
This should fix the duplication of pdp contexts seen in osmo-ggsn when
"show pdp-context" related VTY commands are used.
It was spotted due to some MS requesting a v4v6 context on a
v4-only APN, where first v4 address was allocated, and then upon v6
allocation create_context_ind() called
gtp_create_context_resp(GTPCAUSE_MISSING_APN) but the first address was
not freed. Upon receiving the callback, osmo-ggsn should now free the
related resources.
Related: OS#4154
Change-Id: I6c6215a4ce478afabc78ffaf5ffb0cf829e41226
Doing so should avoid the crash seen in OS#3956, where a message is
received in osmo-sgsn gtp iface after having received a DeleteCtxAccept
message where pdp and associated cbp is freed. As a result, when new
confirmation arrives, it can still be matched against an old request and
be sent to upper layers providing an already freed cbp.
With this patch, since all queued messages belonging to that pdp are
dropped, confirmation won't find a match and be discarded in libgtp.
In order to be able to drop all req messages belonging to a pdp, a new list
is added to pdp_t and qmsg_t are added to that list when inserted into the per-gsn
req transmit queue. This way upon pdp free time it's simply a
matter of iterating over that list to remove all messages.
There's no need to do same for resp queue, and it'd be actually
counter-productive, because it wouldn't be possible to detect and
discard duplicates anymore after pdp ctx has been freed.
Related: OS#3956
Change-Id: Id86d0b241454d3ad49c64c28087fd2710fa2d17a
$target/$target_os is never used, so AC_CANONICAL_TARGET is useless.
$host is, so employ AC_CANONICAL_HOST.
Change-Id: I6dc505888b42cfb686043470d3a3548c24cbe1f7
Older commit made use of gsm48_decode_bcd_number2(), which is available
in libosmocore 1.1.0 onwards, but forgot to increase configure.ac
requirements.
Fixes: fb62504160
Change-Id: I89b37be55fc4ba22b90e9aab9a5989573df2ae38
Since March 15th 2017, libosmocore API logging_vty_add_cmds() had its
parameter removed (c65c5b4ea075ef6cef11fff9442ae0b15c1d6af7). However,
definition in C file doesn't contain "(void)", which means number of
parameters is undefined and thus compiler doesn't complain. Let's remove
parameters from all callers before enforcing "(void)" on it.
API osmo_stats_vty_add_cmds never had a param list but has seem problem
(no "void"), so some users decided to pass a parameter to it.
Change-Id: I0a89586ce683ad060212355b37470c349992ec49
Related: OS#4138
Catched by gcc 9.1.0:
osmo-ggsn/sgsnemu/sgsnemu.c:1294:2: error: converting a packed struct ip_ping pointer (alignment 1) to a uint16_t {aka short unsigned int} pointer (alignment 2) may result in an unaligned pointer value [-Werror=address-of-packed-member]
1294 | p = (uint16_t *) & pack;
Change-Id: I783f104c31234a07f2a13f6dbc577a71b25b36a7
This macro is preferred by autofoo upstream. It was added around
automake 1.7, and offers backward compatibility with AM_CONFIG_HEADER.
Related: OS#3230
Change-Id: I88707d4895d9c231715d5252d2cfab589b42fe0c
$ autoconf -Wall
configure.ac:11: warning: The macro `AC_CANONICAL_SYSTEM' is obsolete.
configure.ac:11: You should run autoupdate.
autoupdate applied the change present in this commit.
Change-Id: Iee59e6e9a7670867d5bc55ba96f79130bc6982f6
Some modems are configured to use PAP as an additional authentication
mechanism beyond the GSM authentication that's part of GMM. Let's
handle such PAP authentication requests by simply acknowledging them
all, without actually checking any credentials database.
This is the most sane thing we can do for now, without adding external
requirements / interfaces like radius servers or the like.
Closes: OS#3914
Change-Id: I81875f30f9f1497199253497f84718510747f731
Those headers are using types defined in other places (like sockaddr_in)
and don't explicitly include them, which makes future queue_test fail.
Change-Id: I65e12a067d89ef71be3719636b64f4d93ea73cc4
Other similar commands already do it. This way we also get rid of
deprecated APIs, supporting search when more than one GSN is set up.
Related: OS#2873
Change-Id: I8357e20076348c8ded5e9f5b8e7252566b0fbfea
Move static global pdp storage arrays to be per GSN. This way now
several GSN per process are supported without collisions.
* pdp_init() is defined in public API but it's actually only intended
for use (and currently only used) internally in gtp_new(). So let's
document that and re-use it for backward compatibility with now
deprecated API, where only one GSN per process is supported.
* Back pointer to gsn_t (pdp->gsn) moved from gtp.c:gtp_new() to
gtp_pdp_newpdp(), since it makes more sense to have it there. This way
backpointer is always set, even in case were app calls pdp_newpdp() API
directly instead of creating them through gtp.c, like osmo-sgsn does.
* Create new versions of required APIs with a pointer to gsn_t where the
pdp ctx is to be created/found. Some APIs receiving a pointer to a pdp
ctx can be left intact because we have a backpointer to its gsn_t.
* pdp_getpdp() is nowhere used, and makes little sense now that we have
pdpa reachable in gsn->pdpa, so let's deprecate it without adding a
replacement.
* Deprecate gtp.h gtp_newpdp(), since it's nowhere used and useless
(does same as new gtp_pdp_newpdp() and doesn't allow for old_pdp to be
passed as parameter).
Fixes: OS#2873
Change-Id: I653cbdc185165592d985e3efab6e3f1add97877b
Fixes following ASan complaint during VTY "show running-config":
osmo-ggsn/ggsn/ggsn_vty.c:657:37: runtime error: left shift of 1 by 31 places cannot be represented in type 'int'
Change-Id: I2b8d163dbc108b0fb5a1e820dc23181835d12869
Nowadays we have one tun device per APN, so we don't need this hash
table because we use the ippool of the APN to find the related PDP ctx
pointer.
Change-Id: Ife3f222daa87f0630ff34ffc3e63f4dad2ad914b
Code modified actually behaves the same, since gtp_freepdp() also calls
delete cb, and this way it's more consistent with rest of the code base.
Change-Id: I299765816e9d885497110d2e834f7ccdc943052c
* API gtp_freepdp was already there but was not really being used by
anyone currently, so we can change its behaviour to call cb_delete_ctx.
It makes sense to call the cb in there too to be consistent with rest of
APIs.
* Add API gtp_freepdp_teardown, which calls gtp_freepdp on pdp and its
secondary contexts. It will also be used later on by osmo-ggsn.
* Use new APIs in internal code to simplify it.
Change-Id: I9f0b774e9385a7a8d81ec9702f158e2f9a50d571
Move all parsing with same conditions under same blocks to make code
easier to follow and make it more compact.
Change-Id: I52d5a3543ce6cf764bd84303b5a0d8b0643d998d
Before this patch they were not taken into account, which means some
resp messages could stay more time than required enqueued.
Change-Id: Iebf405b2310a34785f3b363cc2a9f415281f6030
This timer was added in osmo-ggsn.git
dda21ed7d4,
but it was never initially started since it was introducing, and as a
result retransmissions never being triggered.
Also as a consequence, gtp_retrans is never called. That function is
responsible from triggering retransmissions and to free old responses
waiting in the resp queue (to check for duplicates). Since it's never
called, the retransmit resp queue will grow over time.
Fixes: dda21ed7d4
Fixes: OS#3997
Change-Id: Ie4adc52829446539fbbb5e9e0cf75a04f91c7eea
Instead of printing subscriber's MSISDN as a hex-string, let's
attempt to decode it using gsm48_decode_bcd_number2().
Change-Id: I3f3a105dc8d0d582f2b9d8e1ff6c5785369e569b
An actual APN can be different from the one that was requested by
user, e.g. when 'default-apn' VTY parameter is used. The one that
was requested is already being stored in the PDP context state.
Let's also store a chosen APN in create_context_ind().
Change-Id: I9cbe195f64e5b83d5158c175aad2e81ba2487850
Pau Espin
Jan Engelhardt
Harald Welte
Oliver Smith
Daniel Willmann