Bug Summary

File:root/firefox-clang/dom/media/webrtc/transport/third_party/nICEr/src/ice/ice_candidate_pair.c
Warning:line 313, column 16
Although the value stored to 'r' is used in the enclosing expression, the value is never actually read from 'r'

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name Unified_c_third_party_nICEr0.c -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -analyzer-config-compatibility-mode=true -mrelocation-model pic -pic-level 2 -fhalf-no-semantic-interposition -mframe-pointer=all -relaxed-aliasing -ffp-contract=off -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fdebug-compilation-dir=/root/firefox-clang/obj-x86_64-pc-linux-gnu/dom/media/webrtc/transport/third_party/nICEr/nicer_nicer -fcoverage-compilation-dir=/root/firefox-clang/obj-x86_64-pc-linux-gnu/dom/media/webrtc/transport/third_party/nICEr/nicer_nicer -resource-dir /usr/lib/llvm-21/lib/clang/21 -include /root/firefox-clang/config/gcc_hidden.h -include /root/firefox-clang/obj-x86_64-pc-linux-gnu/mozilla-config.h -I /root/firefox-clang/obj-x86_64-pc-linux-gnu/dist/system_wrappers -U _FORTIFY_SOURCE -D _FORTIFY_SOURCE=2 -D _GLIBCXX_ASSERTIONS -D DEBUG=1 -D _FILE_OFFSET_BITS=64 -D CHROMIUM_BUILD -D USE_LIBJPEG_TURBO=1 -D USE_NSS=1 -D ENABLE_ONE_CLICK_SIGNIN -D GTK_DISABLE_SINGLE_INCLUDES=1 -D _ISOC99_SOURCE=1 -D ENABLE_REMOTING=1 -D ENABLE_WEBRTC=1 -D ENABLE_CONFIGURATION_POLICY -D ENABLE_INPUT_SPEECH -D ENABLE_NOTIFICATIONS -D ENABLE_GPU=1 -D ENABLE_EGLIMAGE=1 -D USE_SKIA=1 -D ENABLE_TASK_MANAGER=1 -D ENABLE_WEB_INTENTS=1 -D ENABLE_EXTENSIONS=1 -D ENABLE_PLUGIN_INSTALLATION=1 -D ENABLE_PROTECTOR_SERVICE=1 -D ENABLE_SESSION_SERVICE=1 -D ENABLE_THEMES=1 -D ENABLE_BACKGROUND=1 -D ENABLE_AUTOMATION=1 -D ENABLE_PRINTING=1 -D ENABLE_CAPTIVE_PORTAL_DETECTION=1 -D SANITY_CHECKS -D USE_TURN -D USE_ICE -D USE_RFC_3489_BACKWARDS_COMPATIBLE -D USE_STUND_0_96 -D USE_STUN_PEDANTIC -D NR_SOCKET_IS_VOID_PTR -D restrict= -D R_PLATFORM_INT_TYPES=<stdint.h> -D R_DEFINED_INT2=int16_t -D R_DEFINED_UINT2=uint16_t -D R_DEFINED_INT4=int32_t -D R_DEFINED_UINT4=uint32_t -D R_DEFINED_INT8=int64_t -D R_DEFINED_UINT8=uint64_t -D LINUX -D HAVE_LIBM=1 -D HAVE_STRDUP=1 -D HAVE_STRLCPY=1 -D HAVE_SYS_TIME_H=1 -D HAVE_VFPRINTF=1 -D NEW_STDIORETSIGTYPE=void -D TIME_WITH_SYS_TIME_H=1 -D __UNUSED__=__attribute__((unused)) -D DYNAMIC_ANNOTATIONS_ENABLED=1 -D WTF_USE_DYNAMIC_ANNOTATIONS=1 -D _DEBUG -D MOZ_HAS_MOZGLUE -D MOZILLA_INTERNAL_API -D IMPL_LIBXUL -D MOZ_SUPPORT_LEAKCHECKING -D STATIC_EXPORTABLE_JS_API -I /root/firefox-clang/dom/media/webrtc/transport/third_party/nICEr -I /root/firefox-clang/obj-x86_64-pc-linux-gnu/dom/media/webrtc/transport/third_party/nICEr/nicer_nicer -I /root/firefox-clang/dom/media/webrtc/transport/third_party/nrappkit/src/event -I /root/firefox-clang/dom/media/webrtc/transport/third_party/nrappkit/src/log -I /root/firefox-clang/dom/media/webrtc/transport/third_party/nrappkit/src/plugin -I /root/firefox-clang/dom/media/webrtc/transport/third_party/nrappkit/src/registry -I /root/firefox-clang/dom/media/webrtc/transport/third_party/nrappkit/src/share -I /root/firefox-clang/dom/media/webrtc/transport/third_party/nrappkit/src/stats -I /root/firefox-clang/dom/media/webrtc/transport/third_party/nrappkit/src/util -I /root/firefox-clang/dom/media/webrtc/transport/third_party/nrappkit/src/util/libekr -I /root/firefox-clang/dom/media/webrtc/transport/third_party/nrappkit/src/port/generic/include -I /root/firefox-clang/dom/media/webrtc/transport/third_party/nICEr/src/crypto -I /root/firefox-clang/dom/media/webrtc/transport/third_party/nICEr/src/ice -I /root/firefox-clang/dom/media/webrtc/transport/third_party/nICEr/src/net -I /root/firefox-clang/dom/media/webrtc/transport/third_party/nICEr/src/stun -I /root/firefox-clang/dom/media/webrtc/transport/third_party/nICEr/src/util -I /root/firefox-clang/dom/media/webrtc/transport/third_party/nrappkit/src/port/linux/include -I /root/firefox-clang/obj-x86_64-pc-linux-gnu/ipc/ipdl/_ipdlheaders -I /root/firefox-clang/ipc/chromium/src -I /root/firefox-clang/obj-x86_64-pc-linux-gnu/dist/include -D MOZILLA_CLIENT -internal-isystem /usr/lib/llvm-21/lib/clang/21/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/14/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -O2 -Wno-error=tautological-type-limit-compare -Wno-range-loop-analysis -Wno-error=deprecated-declarations -Wno-error=array-bounds -Wno-error=free-nonheap-object -Wno-error=atomic-alignment -Wno-error=deprecated-builtins -Wno-psabi -Wno-error=builtin-macro-redefined -Wno-unknown-warning-option -Wno-parentheses -Wno-strict-prototypes -Wno-format -Wno-format-security -ferror-limit 19 -fstrict-flex-arrays=1 -stack-protector 2 -fstack-clash-protection -ftrivial-auto-var-init=pattern -fgnuc-version=4.2.1 -fskip-odr-check-in-gmf -vectorize-loops -vectorize-slp -analyzer-checker optin.performance.Padding -analyzer-output=html -analyzer-config stable-report-filename=true -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /tmp/scan-build-2025-06-30-093548-1913035-1 -x c Unified_c_third_party_nICEr0.c
1/*
2Copyright (c) 2007, Adobe Systems, Incorporated
3All rights reserved.
4
5Redistribution and use in source and binary forms, with or without
6modification, are permitted provided that the following conditions are
7met:
8
9* Redistributions of source code must retain the above copyright
10 notice, this list of conditions and the following disclaimer.
11
12* Redistributions in binary form must reproduce the above copyright
13 notice, this list of conditions and the following disclaimer in the
14 documentation and/or other materials provided with the distribution.
15
16* Neither the name of Adobe Systems, Network Resonance nor the names of its
17 contributors may be used to endorse or promote products derived from
18 this software without specific prior written permission.
19
20THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31*/
32
33#include <assert.h>
34#include <string.h>
35#include <nr_api.h>
36#include "async_timer.h"
37#include "ice_ctx.h"
38#include "ice_util.h"
39#include "ice_codeword.h"
40#include "stun.h"
41
42static char *nr_ice_cand_pair_states[]={"UNKNOWN","FROZEN","WAITING","IN_PROGRESS","FAILED","SUCCEEDED","CANCELLED"};
43
44static void nr_ice_candidate_pair_restart_stun_role_change_cb(NR_SOCKET s, int how, void *cb_arg);
45static void nr_ice_candidate_pair_compute_codeword(nr_ice_cand_pair *pair,
46 nr_ice_candidate *lcand, nr_ice_candidate *rcand);
47
48static void nr_ice_candidate_pair_set_priority(nr_ice_cand_pair *pair)
49 {
50 /* Priority computation S 5.7.2 */
51 UINT8 controlling_priority, controlled_priority;
52 if(pair->pctx->controlling)
53 {
54 controlling_priority=pair->local->priority;
55 controlled_priority=pair->remote->priority;
56 }
57 else{
58 controlling_priority=pair->remote->priority;
59 controlled_priority=pair->local->priority;
60 }
61 pair->priority=(MIN(controlling_priority, controlled_priority)(((controlling_priority)<(controlled_priority))?(controlling_priority
):(controlled_priority)))<<32 |
62 (MAX(controlling_priority, controlled_priority)(((controlling_priority)>(controlled_priority))?(controlling_priority
):(controlled_priority)))<<1 |
63 (controlled_priority > controlling_priority?0:1);
64 }
65
66int nr_ice_candidate_pair_create(nr_ice_peer_ctx *pctx, nr_ice_candidate *lcand,nr_ice_candidate *rcand,nr_ice_cand_pair **pairp)
67 {
68 nr_ice_cand_pair *pair=0;
69 int r,_status;
70 UINT4 RTO;
71 nr_ice_candidate tmpcand;
72 UINT8 t_priority;
73
74 if(!(pair=RCALLOC(sizeof(nr_ice_cand_pair))r_calloc(0,1,sizeof(nr_ice_cand_pair))))
75 ABORT(R_NO_MEMORY)do { int _r=1; if(!_r) _r=-1; ; _status=_r; goto abort;} while
(0);
76
77 pair->pctx=pctx;
78
79 nr_ice_candidate_pair_compute_codeword(pair,lcand,rcand);
80
81 if(r=nr_concat_strings(&pair->as_string,pair->codeword,"|",lcand->addr.as_string,"|",
82 rcand->addr.as_string,"(",lcand->label,"|",rcand->label,")", NULL((void*)0)))
83 ABORT(r)do { int _r=r; if(!_r) _r=-1; ; _status=_r; goto abort;} while
(0);
84
85 nr_ice_candidate_pair_set_state(pctx,pair,NR_ICE_PAIR_STATE_FROZEN1);
86 pair->local=lcand;
87 pair->remote=rcand;
88
89 nr_ice_candidate_pair_set_priority(pair);
90
91 /*
92 TODO(bcampen@mozilla.com): Would be nice to log why this candidate was
93 created (initial pair generation, triggered check, and new trickle
94 candidate seem to be the possibilities here).
95 */
96 r_log(LOG_ICE,LOG_INFO6,"ICE(%s)/CAND-PAIR(%s): Pairing candidate %s (%x):%s (%x) priority=%llu (%llx)",pctx->ctx->label,pair->codeword,lcand->addr.as_string,lcand->priority,rcand->addr.as_string,rcand->priority,pair->priority,pair->priority);
97
98 /* Foundation */
99 if(r=nr_concat_strings(&pair->foundation,lcand->foundation,"|",
100 rcand->foundation,NULL((void*)0)))
101 ABORT(r)do { int _r=r; if(!_r) _r=-1; ; _status=_r; goto abort;} while
(0);
102
103 /* Compute the RTO per S 16 */
104 RTO = MAX(100, (pctx->ctx->Ta * pctx->waiting_pairs))(((100)>((pctx->ctx->Ta * pctx->waiting_pairs)))?
(100):((pctx->ctx->Ta * pctx->waiting_pairs)));
105
106 /* Make a bogus candidate to compute a theoretical peer reflexive
107 * priority per S 7.1.1.1 */
108 memcpy(&tmpcand, lcand, sizeof(tmpcand));
109 /* Non-standard behavior, but that's because the standard is wrong! If
110 * this is a relay candidate, it is never appropriate to assign it the
111 * priority of a prflx. One could attempt to compensate for this on the
112 * other side by overriding prflx candidates (and their priority) when
113 * identical trickle candidates arrive, but it is prudent to avoid creating
114 * this situation in the first place.
115 * TODO: It may be appropriate to assign it a higher priority than _other_
116 * relay candidates. However, there are probably very few cases where it
117 * would matter.
118 * TODO: Note that we still have to contend with mismatched priorities for
119 * srflx here; if we have two srflx, and one of them is learned by the
120 * other side as a prflx, the other side is going to have a higher priority
121 * for that pair unless the priority is updated. For ICE-bis nomination,
122 * this won't matter a whole lot, but we do aggressive nomination, and
123 * there it is crucial. The controlled side has to pick the highest
124 * priority nominated pair, and all of them will get nominated. */
125 if (tmpcand.type != RELAYED) {
126 tmpcand.type = PEER_REFLEXIVE;
127 }
128 if (r=nr_ice_candidate_compute_priority(&tmpcand))
129 ABORT(r)do { int _r=r; if(!_r) _r=-1; ; _status=_r; goto abort;} while
(0);
130 t_priority = tmpcand.priority;
131
132 /* Our sending context */
133 if(r=nr_stun_client_ctx_create(pair->as_string,
134 lcand->osock,
135 &rcand->addr,RTO,&pair->stun_client))
136 ABORT(r)do { int _r=r; if(!_r) _r=-1; ; _status=_r; goto abort;} while
(0);
137 if(!(pair->stun_client->params.ice_binding_request.username=r_strdup(rcand->stream->l2r_user)))
138 ABORT(R_NO_MEMORY)do { int _r=1; if(!_r) _r=-1; ; _status=_r; goto abort;} while
(0);
139 if(r=r_data_copy(&pair->stun_client->params.ice_binding_request.password,
140 &rcand->stream->l2r_pass))
141 ABORT(r)do { int _r=r; if(!_r) _r=-1; ; _status=_r; goto abort;} while
(0);
142 /* TODO(ekr@rtfm.com): Do we need to frob this when we change role. Bug 890667 */
143 pair->stun_client->params.ice_binding_request.control = pctx->controlling?
144 NR_ICE_CONTROLLING1:NR_ICE_CONTROLLED2;
145 pair->stun_client->params.ice_binding_request.priority=t_priority;
146
147 pair->stun_client->params.ice_binding_request.tiebreaker=pctx->tiebreaker;
148
149 *pairp=pair;
150
151 _status=0;
152 abort:
153 if(_status){
154 nr_ice_candidate_pair_destroy(&pair);
155 }
156 return(_status);
157 }
158
159int nr_ice_candidate_pair_destroy(nr_ice_cand_pair **pairp)
160 {
161 nr_ice_cand_pair *pair;
162
163 if(!pairp || !*pairp)
164 return(0);
165
166 pair=*pairp;
167 *pairp=0;
168
169 // record stats back to the ice ctx on destruction
170 if (pair->stun_client) {
171 nr_accumulate_count(&(pair->local->ctx->stats.stun_retransmits), pair->stun_client->retransmit_ct);
172 }
173
174 RFREE(pair->as_string)if(pair->as_string) r_free(pair->as_string);
175 RFREE(pair->foundation)if(pair->foundation) r_free(pair->foundation);
176 nr_ice_socket_deregister(pair->local->isock,pair->stun_client_handle);
177 if (pair->stun_client) {
178 RFREE(pair->stun_client->params.ice_binding_request.username)if(pair->stun_client->params.ice_binding_request.username
) r_free(pair->stun_client->params.ice_binding_request.
username);
179 RFREE(pair->stun_client->params.ice_binding_request.password.data)if(pair->stun_client->params.ice_binding_request.password
.data) r_free(pair->stun_client->params.ice_binding_request
.password.data);
180 nr_stun_client_ctx_destroy(&pair->stun_client);
181 }
182
183 NR_async_timer_cancel(pair->stun_cb_timer);
184 NR_async_timer_cancel(pair->restart_role_change_cb_timer);
185 NR_async_timer_cancel(pair->restart_nominated_cb_timer);
186
187 RFREE(pair)if(pair) r_free(pair);
188 return(0);
189 }
190
191int nr_ice_candidate_pair_unfreeze(nr_ice_peer_ctx *pctx, nr_ice_cand_pair *pair)
192 {
193 assert(pair->state==NR_ICE_PAIR_STATE_FROZEN)((void) sizeof ((pair->state==1) ? 1 : 0), __extension__ (
{ if (pair->state==1) ; else __assert_fail ("pair->state==NR_ICE_PAIR_STATE_FROZEN"
, "/root/firefox-clang/dom/media/webrtc/transport/third_party/nICEr/src/ice/ice_candidate_pair.c"
, 193, __extension__ __PRETTY_FUNCTION__); }));
194
195 nr_ice_candidate_pair_set_state(pctx,pair,NR_ICE_PAIR_STATE_WAITING2);
196
197 return(0);
198 }
199
200static void nr_ice_candidate_pair_stun_cb(NR_SOCKET s, int how, void *cb_arg)
201 {
202 int r,_status;
203 nr_ice_cand_pair *pair=cb_arg;
204 nr_ice_cand_pair *actual_pair=0;
205 nr_ice_candidate *cand=0;
206 nr_stun_message *sres;
207 nr_transport_addr *request_src;
208 nr_transport_addr *request_dst;
209 nr_transport_addr *response_src;
210 nr_transport_addr response_dst;
211 nr_stun_message_attribute *attr;
212
213 pair->stun_cb_timer=0;
214
215 r_log(LOG_ICE,LOG_DEBUG7,"ICE-PEER(%s)/STREAM(%s)/CAND-PAIR(%s): STUN cb on pair addr = %s",
216 pair->pctx->label,pair->local->stream->label,pair->codeword,pair->as_string);
217
218 /* This ordinarily shouldn't happen, but can if we're
219 doing the second check to confirm nomination.
220 Just bail out */
221 if(pair->state==NR_ICE_PAIR_STATE_SUCCEEDED5)
222 goto done;
223
224 switch(pair->stun_client->state){
225 case NR_STUN_CLIENT_STATE_FAILED3:
226 sres=pair->stun_client->response;
227 if(sres && nr_stun_message_has_attribute(sres,NR_STUN_ATTR_ERROR_CODE0x0009,&attr)&&attr->u.error_code.number==487){
228
229 /*
230 * Flip the controlling bit; subsequent 487s for other pairs will be
231 * ignored, since we abandon their STUN transactions.
232 */
233 nr_ice_peer_ctx_switch_controlling_role(pair->pctx);
234
235 return;
236 }
237 /* Fall through */
238 case NR_STUN_CLIENT_STATE_TIMED_OUT4:
239 nr_ice_candidate_pair_set_state(pair->pctx,pair,NR_ICE_PAIR_STATE_FAILED4);
240 break;
241 case NR_STUN_CLIENT_STATE_DONE2:
242 /* make sure the addresses match up S 7.1.2.2 */
243 response_src=&pair->stun_client->peer_addr;
244 request_dst=&pair->remote->addr;
245 if (nr_transport_addr_cmp(response_src,request_dst,NR_TRANSPORT_ADDR_CMP_MODE_ALL4)){
246 r_log(LOG_ICE,LOG_WARNING4,"ICE-PEER(%s)/CAND-PAIR(%s): Peer address mismatch %s != %s",pair->pctx->label,pair->codeword,response_src->as_string,request_dst->as_string);
247 nr_ice_candidate_pair_set_state(pair->pctx,pair,NR_ICE_PAIR_STATE_FAILED4);
248 break;
249 }
250 request_src=&pair->stun_client->my_addr;
251 nr_socket_getaddr(pair->local->osock,&response_dst);
252 if (nr_transport_addr_cmp(request_src,&response_dst,NR_TRANSPORT_ADDR_CMP_MODE_ALL4)){
253 r_log(LOG_ICE,LOG_WARNING4,"ICE-PEER(%s)/CAND-PAIR(%s): Local address mismatch %s != %s",pair->pctx->label,pair->codeword,request_src->as_string,response_dst.as_string);
254 nr_ice_candidate_pair_set_state(pair->pctx,pair,NR_ICE_PAIR_STATE_FAILED4);
255 break;
256 }
257
258 // Update the rtt related fields
259 if (pair->stun_client->rtt_valid) {
260 nr_ice_candidate_pair_update_rtt(pair, pair->stun_client->rtt_ms);
261 // clear rtt_ms so we can't double process it.
262 pair->stun_client->rtt_valid = 0;
263 pair->stun_client->rtt_ms = 0;
264 }
265
266 if(strlen(pair->stun_client->results.ice_binding_response.mapped_addr.as_string)==0){
267 /* we're using the mapped_addr returned by the server to lookup our
268 * candidate, but if the server fails to do that we can't perform
269 * the lookup -- this may be a BUG because if we've gotten here
270 * then the transaction ID check succeeded, and perhaps we should
271 * just assume that it's the server we're talking to and that our
272 * peer is ok, but I'm not sure how that'll interact with the
273 * peer reflexive logic below */
274 r_log(LOG_ICE,LOG_WARNING4,"ICE-PEER(%s)/CAND-PAIR(%s): server failed to return mapped address on pair %s", pair->pctx->label,pair->codeword,pair->as_string);
275 nr_ice_candidate_pair_set_state(pair->pctx,pair,NR_ICE_PAIR_STATE_FAILED4);
276 break;
277 }
278 else if(!nr_transport_addr_cmp(&pair->local->addr,&pair->stun_client->results.ice_binding_response.mapped_addr,NR_TRANSPORT_ADDR_CMP_MODE_ALL4)){
279 nr_ice_candidate_pair_set_state(pair->pctx,pair,NR_ICE_PAIR_STATE_SUCCEEDED5);
280 }
281 else if(pair->stun_client->state == NR_STUN_CLIENT_STATE_DONE2) {
282 /* OK, this didn't correspond to a pair on the check list, but
283 it probably matches one of our candidates */
284
285 cand=TAILQ_FIRST(&pair->local->component->candidates)((&pair->local->component->candidates)->tqh_first
);
286 while(cand){
287 if(!nr_transport_addr_cmp(&cand->addr,&pair->stun_client->results.ice_binding_response.mapped_addr,NR_TRANSPORT_ADDR_CMP_MODE_ALL4)) {
288 r_log(LOG_ICE,LOG_DEBUG7,"ICE-PEER(%s): found pre-existing local candidate of type %d for mapped address %s", pair->pctx->label,cand->type,cand->addr.as_string);
289 assert(cand->type != HOST)((void) sizeof ((cand->type != HOST) ? 1 : 0), __extension__
({ if (cand->type != HOST) ; else __assert_fail ("cand->type != HOST"
, "/root/firefox-clang/dom/media/webrtc/transport/third_party/nICEr/src/ice/ice_candidate_pair.c"
, 289, __extension__ __PRETTY_FUNCTION__); }));
290 break;
291 }
292
293 cand=TAILQ_NEXT(cand,entry_comp)((cand)->entry_comp.tqe_next);
294 }
295
296 if(!cand) {
297 /* OK, nothing found, must be a new peer reflexive */
298 if (pair->local->stream->flags & NR_ICE_CTX_FLAGS_RELAY_ONLY(1<<2)) {
299 /* Any STUN response with a reflexive address in it is unwanted
300 when we'll send on relay only. Bail since cand is used below. */
301 goto done;
302 }
303 if(r=nr_ice_candidate_create(pair->pctx->ctx,
304 pair->local->component,pair->local->isock,pair->local->osock,
305 PEER_REFLEXIVE,pair->local->tcp_type,0,pair->local->component->component_id,&cand))
306 ABORT(r)do { int _r=r; if(!_r) _r=-1; ; _status=_r; goto abort;} while
(0);
307 if(r=nr_transport_addr_copy(&cand->addr,&pair->stun_client->results.ice_binding_response.mapped_addr))
308 ABORT(r)do { int _r=r; if(!_r) _r=-1; ; _status=_r; goto abort;} while
(0);
309 cand->state=NR_ICE_CAND_STATE_INITIALIZED3;
310 TAILQ_INSERT_TAIL(&pair->local->component->candidates,cand,entry_comp)do { (((cand))->entry_comp.tqe_next) = ((void*)0); (cand)->
entry_comp.tqe_prev = (&pair->local->component->
candidates)->tqh_last; *(&pair->local->component
->candidates)->tqh_last = (cand); (&pair->local->
component->candidates)->tqh_last = &(((cand))->entry_comp
.tqe_next); ; ; } while (0);
311 } else {
312 /* Check if we have a pair for this candidate already. */
313 if(r=nr_ice_media_stream_find_pair(pair->remote->stream, cand, pair->remote, &actual_pair)) {
Although the value stored to 'r' is used in the enclosing expression, the value is never actually read from 'r'
314 r_log(LOG_ICE,LOG_DEBUG7,"ICE-PEER(%s): no pair exists for %s and %s", pair->pctx->label,cand->addr.as_string, pair->remote->addr.as_string);
315 }
316 }
317
318 if(!actual_pair) {
319 if(r=nr_ice_candidate_pair_create(pair->pctx,cand,pair->remote, &actual_pair))
320 ABORT(r)do { int _r=r; if(!_r) _r=-1; ; _status=_r; goto abort;} while
(0);
321
322 if(r=nr_ice_component_insert_pair(actual_pair->remote->component,actual_pair))
323 ABORT(r)do { int _r=r; if(!_r) _r=-1; ; _status=_r; goto abort;} while
(0);
324
325 /* If the original pair was nominated, make us nominated too. */
326 if(pair->peer_nominated)
327 actual_pair->peer_nominated=1;
328
329 /* Now mark the orig pair failed */
330 nr_ice_candidate_pair_set_state(pair->pctx,pair,NR_ICE_PAIR_STATE_FAILED4);
331 }
332
333 assert(actual_pair)((void) sizeof ((actual_pair) ? 1 : 0), __extension__ ({ if (
actual_pair) ; else __assert_fail ("actual_pair", "/root/firefox-clang/dom/media/webrtc/transport/third_party/nICEr/src/ice/ice_candidate_pair.c"
, 333, __extension__ __PRETTY_FUNCTION__); }));
334 nr_ice_candidate_pair_set_state(actual_pair->pctx,actual_pair,NR_ICE_PAIR_STATE_SUCCEEDED5);
335 pair=actual_pair;
336
337 }
338
339 /* Should we set nominated? */
340 if(pair->pctx->controlling){
341 if(pair->pctx->ctx->flags & NR_ICE_CTX_FLAGS_AGGRESSIVE_NOMINATION(1))
342 pair->nominated=1;
343 }
344 else{
345 if(pair->peer_nominated)
346 pair->nominated=1;
347 }
348
349
350 /* increment the number of valid pairs in the component */
351 /* We don't bother to maintain a separate valid list */
352 pair->remote->component->valid_pairs++;
353
354 /* S 7.1.2.2: unfreeze other pairs with the same foundation*/
355 if(r=nr_ice_media_stream_unfreeze_pairs_foundation(pair->remote->stream,pair->foundation))
356 ABORT(r)do { int _r=r; if(!_r) _r=-1; ; _status=_r; goto abort;} while
(0);
357
358 /* Deal with this pair being nominated */
359 if(pair->nominated){
360 if(r=nr_ice_component_nominated_pair(pair->remote->component, pair))
361 ABORT(r)do { int _r=r; if(!_r) _r=-1; ; _status=_r; goto abort;} while
(0);
362 }
363
364 break;
365 default:
366 ABORT(R_INTERNAL)do { int _r=3; if(!_r) _r=-1; ; _status=_r; goto abort;} while
(0);
367 }
368
369 /* If we're controlling but in regular mode, ask the handler
370 if he wants to nominate something and stop... */
371 if(pair->pctx->controlling && !(pair->pctx->ctx->flags & NR_ICE_CTX_FLAGS_AGGRESSIVE_NOMINATION(1))){
372
373 if(r=nr_ice_component_select_pair(pair->pctx,pair->remote->component)){
374 if(r!=R_NOT_FOUND2)
375 ABORT(r)do { int _r=r; if(!_r) _r=-1; ; _status=_r; goto abort;} while
(0);
376 }
377 }
378
379 done:
380 _status=0;
381 abort:
382 if (_status) {
383 // cb doesn't return anything, but we should probably log that we aborted
384 // This also quiets the unused variable warnings.
385 r_log(LOG_ICE,LOG_DEBUG7,"ICE-PEER(%s)/STREAM(%s)/CAND-PAIR(%s): STUN cb pair addr = %s abort with status: %d",
386 pair->pctx->label,pair->local->stream->label,pair->codeword,pair->as_string, _status);
387 }
388 return;
389 }
390
391static void nr_ice_candidate_pair_restart(nr_ice_peer_ctx *pctx, nr_ice_cand_pair *pair)
392 {
393 int r,_status;
394 UINT4 mode;
395
396 nr_ice_candidate_pair_set_state(pctx,pair,NR_ICE_PAIR_STATE_IN_PROGRESS3);
397
398 /* Start STUN */
399 if(pair->pctx->controlling && (pair->pctx->ctx->flags & NR_ICE_CTX_FLAGS_AGGRESSIVE_NOMINATION(1)))
400 mode=NR_ICE_CLIENT_MODE_USE_CANDIDATE10;
401 else
402 mode=NR_ICE_CLIENT_MODE_BINDING_REQUEST11;
403
404 nr_stun_client_reset(pair->stun_client);
405
406 if(r=nr_stun_client_start(pair->stun_client,mode,nr_ice_candidate_pair_stun_cb,pair))
407 ABORT(r)do { int _r=r; if(!_r) _r=-1; ; _status=_r; goto abort;} while
(0);
408
409 if ((r=nr_ice_ctx_remember_id(pair->pctx->ctx, pair->stun_client->request))) {
410 /* ignore if this fails (which it shouldn't) because it's only an
411 * optimization and the cleanup routines are not going to do the right
412 * thing if this fails */
413 assert(0)((void) sizeof ((0) ? 1 : 0), __extension__ ({ if (0) ; else __assert_fail
("0", "/root/firefox-clang/dom/media/webrtc/transport/third_party/nICEr/src/ice/ice_candidate_pair.c"
, 413, __extension__ __PRETTY_FUNCTION__); }));
414 }
415
416 _status=0;
417 abort:
418 if(_status){
419 /* Don't fire the CB, but schedule it to fire ASAP */
420 assert(!pair->stun_cb_timer)((void) sizeof ((!pair->stun_cb_timer) ? 1 : 0), __extension__
({ if (!pair->stun_cb_timer) ; else __assert_fail ("!pair->stun_cb_timer"
, "/root/firefox-clang/dom/media/webrtc/transport/third_party/nICEr/src/ice/ice_candidate_pair.c"
, 420, __extension__ __PRETTY_FUNCTION__); }));
421 NR_ASYNC_TIMER_SET(0,nr_ice_candidate_pair_stun_cb,pair, &pair->stun_cb_timer)NR_async_timer_set(0,nr_ice_candidate_pair_stun_cb,pair,(char
*)__FUNCTION__,421,&pair->stun_cb_timer);
422 _status=0;
423 }
424 }
425
426int nr_ice_candidate_pair_start(nr_ice_peer_ctx *pctx, nr_ice_cand_pair *pair)
427 {
428 int r,_status;
429
430 /* Register the stun ctx for when responses come in*/
431 if(r=nr_ice_socket_register_stun_client(pair->local->isock,pair->stun_client,&pair->stun_client_handle))
432 ABORT(r)do { int _r=r; if(!_r) _r=-1; ; _status=_r; goto abort;} while
(0);
433
434 nr_ice_candidate_pair_restart(pctx, pair);
435
436 _status=0;
437 abort:
438 return(_status);
439 }
440
441static int nr_ice_candidate_copy_for_triggered_check(nr_ice_cand_pair *pair)
442 {
443 int r,_status;
444 nr_ice_cand_pair *copy;
445
446 if(r=nr_ice_candidate_pair_create(pair->pctx, pair->local, pair->remote, &copy))
447 ABORT(r)do { int _r=r; if(!_r) _r=-1; ; _status=_r; goto abort;} while
(0);
448
449 /* Preserve nomination status */
450 copy->peer_nominated= pair->peer_nominated;
451 copy->nominated = pair->nominated;
452
453 r_log(LOG_ICE,LOG_INFO6,"CAND-PAIR(%s): Adding pair to check list and trigger check queue: %s",pair->codeword,pair->as_string);
454 nr_ice_candidate_pair_insert(&pair->remote->stream->check_list,copy);
455 nr_ice_candidate_pair_trigger_check_append(&pair->remote->stream->trigger_check_queue,copy);
456
457 copy->triggered = 1;
458 nr_ice_candidate_pair_set_state(copy->pctx,copy,NR_ICE_PAIR_STATE_WAITING2);
459
460 _status=0;
461 abort:
462 return(_status);
463}
464
465int nr_ice_candidate_pair_do_triggered_check(nr_ice_peer_ctx *pctx, nr_ice_cand_pair *pair, int force)
466 {
467 int r,_status;
468
469 if(pair->state==NR_ICE_PAIR_STATE_SUCCEEDED5) {
470 r_log(LOG_ICE,LOG_DEBUG7,"ICE-PEER(%s)/CAND_PAIR(%s): No new trigger check for succeeded pair",pctx->label,pair->codeword);
471 return(0);
472 } else if (pair->local->stream->obsolete) {
473 r_log(LOG_ICE, LOG_DEBUG7,
474 "ICE-PEER(%s)/CAND_PAIR(%s): No new trigger check for pair with "
475 "obsolete stream",
476 pctx->label, pair->codeword);
477 return (0);
478 }
479
480 /* Do not run this logic more than once on a given pair (|force| is set
481 * when the check we received has USE-CANDIDATE for this pair for the first
482 * time, and this pair is a higher priority than anything that has been
483 * nominated so far) */
484 if(!pair->triggered || force){
485 r_log(LOG_ICE,LOG_INFO6,"ICE-PEER(%s)/CAND-PAIR(%s): triggered check on %s",pctx->label,pair->codeword,pair->as_string);
486
487 pair->triggered=1;
488
489 switch(pair->state){
490 case NR_ICE_PAIR_STATE_FAILED4:
491 /* OK, there was a pair, it's just invalid: According to Section
492 * 7.2.1.4, we need to resurrect it */
493 r_log(LOG_ICE,LOG_INFO6,"ICE-PEER(%s)/CAND-PAIR(%s): received STUN check on failed pair, resurrecting: %s",pctx->label,pair->codeword,pair->as_string);
494 /* fall through */
495 case NR_ICE_PAIR_STATE_FROZEN1:
496 nr_ice_candidate_pair_set_state(pctx,pair,NR_ICE_PAIR_STATE_WAITING2);
497 /* fall through even further */
498 case NR_ICE_PAIR_STATE_WAITING2:
499 /* Append it additionally to the trigger check queue */
500 r_log(LOG_ICE,LOG_INFO6,"ICE-PEER(%s)/CAND-PAIR(%s): Inserting pair to trigger check queue: %s",pctx->label,pair->codeword,pair->as_string);
501 nr_ice_candidate_pair_trigger_check_append(&pair->remote->stream->trigger_check_queue,pair);
502 break;
503 case NR_ICE_PAIR_STATE_CANCELLED6:
504 r_log(LOG_ICE,LOG_INFO6,"ICE-PEER(%s)/CAND-PAIR(%s): received STUN check on cancelled pair, resurrecting: %s",pctx->label,pair->codeword,pair->as_string);
505 /* fall through */
506 case NR_ICE_PAIR_STATE_IN_PROGRESS3:
507 /* Instead of trying to maintain two stun contexts on the same pair,
508 * and handling heterogenous responses and error conditions, we instead
509 * create a second pair that is identical except that it has the
510 * |triggered| bit set. We also cancel the original pair, but it can
511 * still succeed on its own in the special waiting state. */
512 if(r=nr_ice_candidate_copy_for_triggered_check(pair))
513 ABORT(r)do { int _r=r; if(!_r) _r=-1; ; _status=_r; goto abort;} while
(0);
514 nr_ice_candidate_pair_cancel(pair->pctx,pair,1);
515 break;
516 default:
517 /* all states are handled - a new/unknown state should not
518 * automatically enter the start_checks() below */
519 assert(0)((void) sizeof ((0) ? 1 : 0), __extension__ ({ if (0) ; else __assert_fail
("0", "/root/firefox-clang/dom/media/webrtc/transport/third_party/nICEr/src/ice/ice_candidate_pair.c"
, 519, __extension__ __PRETTY_FUNCTION__); }));
520 break;
521 }
522
523 /* Ensure that the timers are running to start checks on the topmost entry
524 * of the triggered check queue. */
525 if(r=nr_ice_media_stream_start_checks(pair->pctx,pair->remote->stream))
526 ABORT(r)do { int _r=r; if(!_r) _r=-1; ; _status=_r; goto abort;} while
(0);
527 }
528
529 _status=0;
530 abort:
531 return(_status);
532 }
533
534void nr_ice_candidate_pair_cancel(nr_ice_peer_ctx *pctx,nr_ice_cand_pair *pair, int move_to_wait_state)
535 {
536 if(pair->state != NR_ICE_PAIR_STATE_FAILED4){
537 /* If it's already running we need to terminate the stun */
538 if(pair->state==NR_ICE_PAIR_STATE_IN_PROGRESS3){
539 if(move_to_wait_state) {
540 nr_stun_client_wait(pair->stun_client);
541 } else {
542 nr_stun_client_cancel(pair->stun_client);
543 }
544 }
545 nr_ice_candidate_pair_set_state(pctx,pair,NR_ICE_PAIR_STATE_CANCELLED6);
546 }
547 }
548
549int nr_ice_candidate_pair_select(nr_ice_cand_pair *pair)
550 {
551 int r,_status;
552
553 if(!pair){
554 r_log(LOG_ICE,LOG_ERR3,"ICE-PAIR: No pair chosen");
555 ABORT(R_BAD_ARGS)do { int _r=6; if(!_r) _r=-1; ; _status=_r; goto abort;} while
(0);
556 }
557
558 if(pair->state!=NR_ICE_PAIR_STATE_SUCCEEDED5){
559 r_log(LOG_ICE,LOG_ERR3,"ICE-PEER(%s)/CAND-PAIR(%s): tried to install non-succeeded pair, ignoring: %s",pair->pctx->label,pair->codeword,pair->as_string);
560 }
561 else{
562 /* Ok, they chose one */
563 /* 1. Send a new request with nominated. Do it as a scheduled
564 event to avoid reentrancy issues. Only do this if it hasn't
565 happened already (though this shouldn't happen.)
566 */
567 if(!pair->restart_nominated_cb_timer)
568 NR_ASYNC_TIMER_SET(0,nr_ice_candidate_pair_restart_stun_nominated_cb,pair,&pair->restart_nominated_cb_timer)NR_async_timer_set(0,nr_ice_candidate_pair_restart_stun_nominated_cb
,pair,(char *)__FUNCTION__,568,&pair->restart_nominated_cb_timer
);
569
570 /* 2. Tell ourselves this pair is ready */
571 if(r=nr_ice_component_nominated_pair(pair->remote->component, pair))
572 ABORT(r)do { int _r=r; if(!_r) _r=-1; ; _status=_r; goto abort;} while
(0);
573 }
574
575 _status=0;
576 abort:
577 return(_status);
578 }
579
580void nr_ice_candidate_pair_set_state(nr_ice_peer_ctx *pctx, nr_ice_cand_pair *pair, int state)
581 {
582 r_log(LOG_ICE,LOG_INFO6,"ICE-PEER(%s)/CAND-PAIR(%s): setting pair to state %s: %s",
583 pctx->label,pair->codeword,nr_ice_cand_pair_states[state],pair->as_string);
584
585 /* NOTE: This function used to reference pctx->state instead of
586 pair->state and the assignment to pair->state was at the top
587 of this function. Because pctx->state was never changed, this seems to have
588 been a typo. The natural logic is "if the state changed
589 decrement the counter" so this implies we should be checking
590 the pair state rather than the pctx->state.
591
592 This didn't cause big problems because waiting_pairs was only
593 used for pacing, so the pacing just was kind of broken.
594
595 This note is here as a reminder until we do more testing
596 and make sure that in fact this was a typo.
597 */
598 if(pair->state!=NR_ICE_PAIR_STATE_WAITING2){
599 if(state==NR_ICE_PAIR_STATE_WAITING2)
600 pctx->waiting_pairs++;
601 }
602 else{
603 if(state!=NR_ICE_PAIR_STATE_WAITING2)
604 pctx->waiting_pairs--;
605
606 assert(pctx->waiting_pairs>=0)((void) sizeof ((pctx->waiting_pairs>=0) ? 1 : 0), __extension__
({ if (pctx->waiting_pairs>=0) ; else __assert_fail ("pctx->waiting_pairs>=0"
, "/root/firefox-clang/dom/media/webrtc/transport/third_party/nICEr/src/ice/ice_candidate_pair.c"
, 606, __extension__ __PRETTY_FUNCTION__); }));
607 }
608 pair->state=state;
609
610
611 if(pair->state==NR_ICE_PAIR_STATE_FAILED4 ||
612 pair->state==NR_ICE_PAIR_STATE_CANCELLED6){
613 nr_ice_component_failed_pair(pair->remote->component, pair);
614 }
615 }
616
617void nr_ice_candidate_pair_dump_state(nr_ice_cand_pair *pair, int log_level)
618 {
619 r_log(LOG_ICE,log_level,"CAND-PAIR(%s): pair %s: state=%s, priority=0x%llx\n",pair->codeword,pair->as_string,nr_ice_cand_pair_states[pair->state],pair->priority);
620 }
621
622
623int nr_ice_candidate_pair_trigger_check_append(nr_ice_cand_pair_head *head,nr_ice_cand_pair *pair)
624 {
625 if(pair->triggered_check_queue_entry.tqe_next ||
626 pair->triggered_check_queue_entry.tqe_prev)
627 return(0);
628
629 TAILQ_INSERT_TAIL(head,pair,triggered_check_queue_entry)do { (((pair))->triggered_check_queue_entry.tqe_next) = ((
void*)0); (pair)->triggered_check_queue_entry.tqe_prev = (
head)->tqh_last; *(head)->tqh_last = (pair); (head)->
tqh_last = &(((pair))->triggered_check_queue_entry.tqe_next
); ; ; } while (0);
630
631 return(0);
632 }
633
634void nr_ice_candidate_pair_insert(nr_ice_cand_pair_head *head,nr_ice_cand_pair *pair)
635 {
636 nr_ice_cand_pair *c1;
637
638 c1=TAILQ_FIRST(head)((head)->tqh_first);
639 while(c1){
640 if(c1->priority < pair->priority){
641 TAILQ_INSERT_BEFORE(c1,pair,check_queue_entry)do { (pair)->check_queue_entry.tqe_prev = (c1)->check_queue_entry
.tqe_prev; (((pair))->check_queue_entry.tqe_next) = (c1); *
(c1)->check_queue_entry.tqe_prev = (pair); (c1)->check_queue_entry
.tqe_prev = &(((pair))->check_queue_entry.tqe_next); ;
; } while (0);
642 break;
643 }
644
645 c1=TAILQ_NEXT(c1,check_queue_entry)((c1)->check_queue_entry.tqe_next);
646 }
647 if(!c1) TAILQ_INSERT_TAIL(head,pair,check_queue_entry)do { (((pair))->check_queue_entry.tqe_next) = ((void*)0); (
pair)->check_queue_entry.tqe_prev = (head)->tqh_last; *
(head)->tqh_last = (pair); (head)->tqh_last = &(((pair
))->check_queue_entry.tqe_next); ; ; } while (0);
648 }
649
650void nr_ice_candidate_pair_restart_stun_nominated_cb(NR_SOCKET s, int how, void *cb_arg)
651 {
652 nr_ice_cand_pair *pair=cb_arg;
653 int r,_status;
654
655 pair->restart_nominated_cb_timer=0;
656
657 r_log(LOG_ICE,LOG_INFO6,"ICE-PEER(%s)/STREAM(%s)/CAND-PAIR(%s)/COMP(%d): Restarting pair as nominated: %s",pair->pctx->label,pair->local->stream->label,pair->codeword,pair->remote->component->component_id,pair->as_string);
658
659 nr_stun_client_reset(pair->stun_client);
660
661 if(r=nr_stun_client_start(pair->stun_client,NR_ICE_CLIENT_MODE_USE_CANDIDATE10,nr_ice_candidate_pair_stun_cb,pair))
662 ABORT(r)do { int _r=r; if(!_r) _r=-1; ; _status=_r; goto abort;} while
(0);
663
664 if(r=nr_ice_ctx_remember_id(pair->pctx->ctx, pair->stun_client->request))
665 ABORT(r)do { int _r=r; if(!_r) _r=-1; ; _status=_r; goto abort;} while
(0);
666
667 _status=0;
668 abort:
669 if (_status) {
670 // cb doesn't return anything, but we should probably log that we aborted
671 // This also quiets the unused variable warnings.
672 r_log(LOG_ICE,LOG_DEBUG7,"ICE-PEER(%s)/STREAM(%s)/CAND-PAIR(%s)/COMP(%d): STUN nominated cb pair as nominated: %s abort with status: %d",
673 pair->pctx->label,pair->local->stream->label,pair->codeword,pair->remote->component->component_id,pair->as_string, _status);
674 }
675 return;
676 }
677
678static void nr_ice_candidate_pair_restart_stun_role_change_cb(NR_SOCKET s, int how, void *cb_arg)
679 {
680 nr_ice_cand_pair *pair=cb_arg;
681
682 pair->restart_role_change_cb_timer=0;
683
684 r_log(LOG_ICE,LOG_INFO6,"ICE-PEER(%s)/STREAM(%s)/CAND-PAIR(%s):COMP(%d): Restarting pair as %s: %s",pair->pctx->label,pair->local->stream->label,pair->codeword,pair->remote->component->component_id,pair->pctx->controlling ? "CONTROLLING" : "CONTROLLED",pair->as_string);
685
686 nr_ice_candidate_pair_restart(pair->pctx, pair);
687 }
688
689void nr_ice_candidate_pair_role_change(nr_ice_cand_pair *pair)
690 {
691 pair->stun_client->params.ice_binding_request.control = pair->pctx->controlling ? NR_ICE_CONTROLLING1 : NR_ICE_CONTROLLED2;
692 nr_ice_candidate_pair_set_priority(pair);
693
694 if(pair->state == NR_ICE_PAIR_STATE_IN_PROGRESS3) {
695 /* We could try only restarting in-progress pairs when they receive their
696 * 487, but this ends up being simpler, because any extra 487 are dropped.
697 */
698 if(!pair->restart_role_change_cb_timer)
699 NR_ASYNC_TIMER_SET(0,nr_ice_candidate_pair_restart_stun_role_change_cb,pair,&pair->restart_role_change_cb_timer)NR_async_timer_set(0,nr_ice_candidate_pair_restart_stun_role_change_cb
,pair,(char *)__FUNCTION__,699,&pair->restart_role_change_cb_timer
);
700 }
701 }
702
703void nr_ice_candidate_pair_update_rtt(nr_ice_cand_pair *pair, UINT8 rtt_ms)
704 {
705 assert(pair)((void) sizeof ((pair) ? 1 : 0), __extension__ ({ if (pair) ;
else __assert_fail ("pair", "/root/firefox-clang/dom/media/webrtc/transport/third_party/nICEr/src/ice/ice_candidate_pair.c"
, 705, __extension__ __PRETTY_FUNCTION__); }));
706
707 pair->responses_recvd++;
708 pair->current_rtt_ms = rtt_ms;
709 pair->total_rtt_ms += rtt_ms;
710 r_log(LOG_ICE,LOG_DEBUG7,"ICE-PEER(%s)/CAND-PAIR(%s): responses_recvd %llu, current_rtt_ms %llu ms, total_rtt_ms %llu ms",
711 pair->pctx->label,pair->codeword,pair->responses_recvd,pair->current_rtt_ms,pair->total_rtt_ms);
712 }
713
714static void nr_ice_candidate_pair_compute_codeword(nr_ice_cand_pair *pair,
715 nr_ice_candidate *lcand, nr_ice_candidate *rcand)
716 {
717 char as_string[2048];
718
719 snprintf(as_string,
720 sizeof(as_string),
721 "%s|%s(%s|%s)",
722 lcand->addr.as_string,
723 rcand->addr.as_string,
724 lcand->label,
725 rcand->label);
726
727 nr_ice_compute_codeword(as_string,strlen(as_string),pair->codeword);
728 }
729