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rtpengine
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TT#118350 add SDES=static option

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Change-Id: Id34d4fe31e58acfae31d8e5d30abec1837c4f808
(cherry picked from commit 5761e90722a9cf2235562b1cbbb73a3a671fdce9)
mr9.3.1
Richard Fuchs 5 years ago
parent e874f04958
commit a4fb11605c
5 changed files with 299 additions and 0 deletions
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7
README.md
Unescape View File

@ -1121,6 +1121,13 @@ Optionally included keys are:
Add the key lifetime parameter `2^31` to each crypto key.
- `static`
Instructs *rtpengine* to skip the full SDES negotiation routine during a re-invite
(e.g. pick the first support crypto suite, look for possible SRTP passthrough)
and instead leave the previously negotiated crypto suite in place. Only useful in
subsequent `answer` messages and ignored in `offer` messages.
* `OSRTP`
Similar to `SDES` but controls OSRTP behaviour. Default behaviour is to pass through

18
daemon/call.c
Unescape View File

@ -1538,6 +1538,23 @@ static void __generate_crypto(const struct sdp_ng_flags *flags, struct call_medi
struct crypto_params_sdes *cps = cpq->head ? cpq->head->data : NULL;
struct crypto_params_sdes *cps_in = cpq_in->head ? cpq_in->head->data : NULL;
struct crypto_params_sdes *offered_cps = offered_cpq->head ? offered_cpq->head->data : NULL;
if (flags && flags->sdes_static && cps) {
// reverse logic: instead of looking for a matching crypto suite to put in
// our answer, we want to leave what we already had. however, this is only
// valid if the currently present crypto suite matches the offer
for (GList *l = cpq_in->head; l; l = l->next) {
struct crypto_params_sdes *check_cps = l->data;
if (check_cps->params.crypto_suite == cps->params.crypto_suite
&& check_cps->tag == cps->tag) {
ilogs(crypto, LOG_DEBUG, "Found matching existing crypto suite %u:%s",
check_cps->tag,
check_cps->params.crypto_suite->name);
goto cps_match;
}
}
}
if (offered_cps) {
ilogs(crypto, LOG_DEBUG, "Looking for matching crypto suite to offered %u:%s", offered_cps->tag,
offered_cps->params.crypto_suite->name);
@ -1553,6 +1570,7 @@ static void __generate_crypto(const struct sdp_ng_flags *flags, struct call_medi
}
}
}
cps_match:
if (cps_in && (!cps || cps->params.crypto_suite != cps_in->params.crypto_suite)) {
crypto_params_sdes_queue_clear(cpq);
cps = g_slice_alloc0(sizeof(*cps));

5
daemon/call_interfaces.c
Unescape View File

@ -521,6 +521,8 @@ INLINE char *bencode_get_alt(bencode_item_t *i, const char *one, const char *two
}
INLINE void ng_sdes_option(struct sdp_ng_flags *out, str *s, void *dummy) {
str_hyphenate(s);
if (call_ng_flags_prefix(out, s, "no-", call_ng_flags_str_ht, &out->sdes_no))
return;
@ -561,6 +563,9 @@ INLINE void ng_sdes_option(struct sdp_ng_flags *out, str *s, void *dummy) {
case CSH_LOOKUP("pad"):
out->sdes_pad = 1;
break;
case CSH_LOOKUP("static"):
out->sdes_static = 1;
break;
default:
ilog(LOG_WARN, "Unknown 'SDES' flag encountered: '"STR_FORMAT"'",
STR_FMT(s));

1
include/call_interfaces.h
Unescape View File

@ -123,6 +123,7 @@ struct sdp_ng_flags {
sdes_authenticated_srtp:1,
sdes_lifetime:1,
sdes_pad:1,
sdes_static:1,
drop_traffic_start:1,
drop_traffic_stop:1,
passthrough_on:1,

268
t/auto-daemon-tests.pl
Unescape View File

@ -40,6 +40,274 @@ my ($sock_a, $sock_b, $sock_c, $sock_d, $port_a, $port_b, $ssrc, $ssrc_b, $resp,
new_call;
offer('SDES=static control',
{ DTLS => 'off' }, <<SDP);
v=0
o=- 1545997027 1 IN IP4 198.51.101.40
s=tester
t=0 0
m=audio 10000 RTP/SAVP 8
c=IN IP4 198.51.100.1
a=crypto:1 AEAD_AES_256_GCM inline:53P5CsePy3hFUcuqsizkCnTE+4OKa1cOGa2WXHjoN19ifpweerTLaj+9vxc
a=crypto:2 AEAD_AES_128_GCM inline:QAXb41skvhZaVzQgiJH+y+P9HCUSTnQWXcuieA
a=crypto:3 AES_256_CM_HMAC_SHA1_80 inline:Ylhu0C+EN+fjasQ730KXQn/t+5vpKmhzs9TgWD1mvRiLHpwABTovh/pwpjjajg
a=crypto:4 AES_256_CM_HMAC_SHA1_32 inline:QmwGdHm6/VLHA2Et6NFw4i3g4Ely6SG8cWHHo+xTPREMRr0lfDMvr1p7CyXrog
a=crypto:5 AES_192_CM_HMAC_SHA1_80 inline:K/C34oakA6ko9ZsWyc90W/M/EEx+YFLu3qzxL2IdWXLulkPqDNE
a=crypto:6 AES_192_CM_HMAC_SHA1_32 inline:ig3qPKCMyU9aCG4YSysTxthgr3FkVdD1pXKVVOOEFeGHgnb7MBk
a=crypto:7 AES_CM_128_HMAC_SHA1_80 inline:Opr7g+J9VgQnRkCFNmL/0LP/dcF1Exu43qwiE0So
a=crypto:8 AES_CM_128_HMAC_SHA1_32 inline:LTwX81FUDIqkdr+g9ogW8T/HRoGmZF5snF97QAPF
a=crypto:9 F8_128_HMAC_SHA1_80 inline:sczm7mZYpQDbs5qGTMavRH89imN1tLcrJGJk+DG7
a=crypto:10 F8_128_HMAC_SHA1_32 inline:Gh+eY01+Uvw7gAbstjR0l91ZzuMn4h5JE9jaBYFq
a=crypto:11 NULL_HMAC_SHA1_80 inline:KPLgFC6jSYe7Xf7rVKi1zjm+CkfxLngL6L3o8kBu
a=crypto:12 NULL_HMAC_SHA1_32 inline:8ia0Ba4FPS/Dow99pIdt8BLIsq6xo7wn5pWR6zXB
----------------------------------
v=0
o=- 1545997027 1 IN IP4 198.51.101.40
s=tester
t=0 0
m=audio PORT RTP/SAVP 8
c=IN IP4 203.0.113.1
a=rtpmap:8 PCMA/8000
a=sendrecv
a=rtcp:PORT
a=crypto:1 AEAD_AES_256_GCM inline:53P5CsePy3hFUcuqsizkCnTE+4OKa1cOGa2WXHjoN19ifpweerTLaj+9vxc
a=crypto:2 AEAD_AES_128_GCM inline:QAXb41skvhZaVzQgiJH+y+P9HCUSTnQWXcuieA
a=crypto:3 AES_256_CM_HMAC_SHA1_80 inline:Ylhu0C+EN+fjasQ730KXQn/t+5vpKmhzs9TgWD1mvRiLHpwABTovh/pwpjjajg
a=crypto:4 AES_256_CM_HMAC_SHA1_32 inline:QmwGdHm6/VLHA2Et6NFw4i3g4Ely6SG8cWHHo+xTPREMRr0lfDMvr1p7CyXrog
a=crypto:5 AES_192_CM_HMAC_SHA1_80 inline:K/C34oakA6ko9ZsWyc90W/M/EEx+YFLu3qzxL2IdWXLulkPqDNE
a=crypto:6 AES_192_CM_HMAC_SHA1_32 inline:ig3qPKCMyU9aCG4YSysTxthgr3FkVdD1pXKVVOOEFeGHgnb7MBk
a=crypto:7 AES_CM_128_HMAC_SHA1_80 inline:Opr7g+J9VgQnRkCFNmL/0LP/dcF1Exu43qwiE0So
a=crypto:8 AES_CM_128_HMAC_SHA1_32 inline:LTwX81FUDIqkdr+g9ogW8T/HRoGmZF5snF97QAPF
a=crypto:9 F8_128_HMAC_SHA1_80 inline:sczm7mZYpQDbs5qGTMavRH89imN1tLcrJGJk+DG7
a=crypto:10 F8_128_HMAC_SHA1_32 inline:Gh+eY01+Uvw7gAbstjR0l91ZzuMn4h5JE9jaBYFq
a=crypto:11 NULL_HMAC_SHA1_80 inline:KPLgFC6jSYe7Xf7rVKi1zjm+CkfxLngL6L3o8kBu
a=crypto:12 NULL_HMAC_SHA1_32 inline:8ia0Ba4FPS/Dow99pIdt8BLIsq6xo7wn5pWR6zXB
SDP
answer('SDES=static control',
{ }, <<SDP);
v=0
o=- 1545997027 1 IN IP4 198.51.101.40
s=tester
t=0 0
m=audio 20000 RTP/SAVP 8
c=IN IP4 198.51.100.1
a=crypto:1 AEAD_AES_256_GCM inline:555555ePy3hFUcuqsizkCnTE+4OKa1cOGa2WXHjoN19ifpweerTLaj+9vxc
----------------------------------
v=0
o=- 1545997027 1 IN IP4 198.51.101.40
s=tester
t=0 0
m=audio PORT RTP/SAVP 8
c=IN IP4 203.0.113.1
a=rtpmap:8 PCMA/8000
a=sendrecv
a=rtcp:PORT
a=crypto:1 AEAD_AES_256_GCM inline:555555ePy3hFUcuqsizkCnTE+4OKa1cOGa2WXHjoN19ifpweerTLaj+9vxc
SDP
offer('SDES=static control',
{ DTLS => 'off' }, <<SDP);
v=0
o=- 1545997027 1 IN IP4 198.51.101.40
s=tester
t=0 0
m=audio 10000 RTP/SAVP 8
c=IN IP4 198.51.100.1
a=crypto:1 AEAD_AES_256_GCM inline:53P5CsePy3hFUcuqsizkCnTE+4OKa1cOGa2WXHjoN19ifpweerTLaj+9vxc
a=crypto:2 AEAD_AES_128_GCM inline:QAXb41skvhZaVzQgiJH+y+P9HCUSTnQWXcuieA
a=crypto:3 AES_256_CM_HMAC_SHA1_80 inline:Ylhu0C+EN+fjasQ730KXQn/t+5vpKmhzs9TgWD1mvRiLHpwABTovh/pwpjjajg
a=crypto:4 AES_256_CM_HMAC_SHA1_32 inline:QmwGdHm6/VLHA2Et6NFw4i3g4Ely6SG8cWHHo+xTPREMRr0lfDMvr1p7CyXrog
a=crypto:5 AES_192_CM_HMAC_SHA1_80 inline:K/C34oakA6ko9ZsWyc90W/M/EEx+YFLu3qzxL2IdWXLulkPqDNE
a=crypto:6 AES_192_CM_HMAC_SHA1_32 inline:ig3qPKCMyU9aCG4YSysTxthgr3FkVdD1pXKVVOOEFeGHgnb7MBk
a=crypto:7 AES_CM_128_HMAC_SHA1_80 inline:Opr7g+J9VgQnRkCFNmL/0LP/dcF1Exu43qwiE0So
a=crypto:8 AES_CM_128_HMAC_SHA1_32 inline:LTwX81FUDIqkdr+g9ogW8T/HRoGmZF5snF97QAPF
a=crypto:9 F8_128_HMAC_SHA1_80 inline:sczm7mZYpQDbs5qGTMavRH89imN1tLcrJGJk+DG7
a=crypto:10 F8_128_HMAC_SHA1_32 inline:Gh+eY01+Uvw7gAbstjR0l91ZzuMn4h5JE9jaBYFq
a=crypto:11 NULL_HMAC_SHA1_80 inline:KPLgFC6jSYe7Xf7rVKi1zjm+CkfxLngL6L3o8kBu
a=crypto:12 NULL_HMAC_SHA1_32 inline:8ia0Ba4FPS/Dow99pIdt8BLIsq6xo7wn5pWR6zXB
----------------------------------
v=0
o=- 1545997027 1 IN IP4 198.51.101.40
s=tester
t=0 0
m=audio PORT RTP/SAVP 8
c=IN IP4 203.0.113.1
a=rtpmap:8 PCMA/8000
a=sendrecv
a=rtcp:PORT
a=crypto:1 AEAD_AES_256_GCM inline:53P5CsePy3hFUcuqsizkCnTE+4OKa1cOGa2WXHjoN19ifpweerTLaj+9vxc
a=crypto:2 AEAD_AES_128_GCM inline:QAXb41skvhZaVzQgiJH+y+P9HCUSTnQWXcuieA
a=crypto:3 AES_256_CM_HMAC_SHA1_80 inline:Ylhu0C+EN+fjasQ730KXQn/t+5vpKmhzs9TgWD1mvRiLHpwABTovh/pwpjjajg
a=crypto:4 AES_256_CM_HMAC_SHA1_32 inline:QmwGdHm6/VLHA2Et6NFw4i3g4Ely6SG8cWHHo+xTPREMRr0lfDMvr1p7CyXrog
a=crypto:5 AES_192_CM_HMAC_SHA1_80 inline:K/C34oakA6ko9ZsWyc90W/M/EEx+YFLu3qzxL2IdWXLulkPqDNE
a=crypto:6 AES_192_CM_HMAC_SHA1_32 inline:ig3qPKCMyU9aCG4YSysTxthgr3FkVdD1pXKVVOOEFeGHgnb7MBk
a=crypto:7 AES_CM_128_HMAC_SHA1_80 inline:Opr7g+J9VgQnRkCFNmL/0LP/dcF1Exu43qwiE0So
a=crypto:8 AES_CM_128_HMAC_SHA1_32 inline:LTwX81FUDIqkdr+g9ogW8T/HRoGmZF5snF97QAPF
a=crypto:9 F8_128_HMAC_SHA1_80 inline:sczm7mZYpQDbs5qGTMavRH89imN1tLcrJGJk+DG7
a=crypto:10 F8_128_HMAC_SHA1_32 inline:Gh+eY01+Uvw7gAbstjR0l91ZzuMn4h5JE9jaBYFq
a=crypto:11 NULL_HMAC_SHA1_80 inline:KPLgFC6jSYe7Xf7rVKi1zjm+CkfxLngL6L3o8kBu
a=crypto:12 NULL_HMAC_SHA1_32 inline:8ia0Ba4FPS/Dow99pIdt8BLIsq6xo7wn5pWR6zXB
SDP
answer('SDES=static control',
{ }, <<SDP);
v=0
o=- 1545997027 1 IN IP4 198.51.101.40
s=tester
t=0 0
m=audio 20000 RTP/SAVP 8
c=IN IP4 198.51.100.1
a=crypto:7 AES_CM_128_HMAC_SHA1_80 inline:O3333333333nRkCFNmL/0LP/dcF1Exu43qwiE0So
----------------------------------
v=0
o=- 1545997027 1 IN IP4 198.51.101.40
s=tester
t=0 0
m=audio PORT RTP/SAVP 8
c=IN IP4 203.0.113.1
a=rtpmap:8 PCMA/8000
a=sendrecv
a=rtcp:PORT
a=crypto:7 AES_CM_128_HMAC_SHA1_80 inline:O3333333333nRkCFNmL/0LP/dcF1Exu43qwiE0So
SDP
offer('SDES=static',
{ DTLS => 'off' }, <<SDP);
v=0
o=- 1545997027 1 IN IP4 198.51.101.40
s=tester
t=0 0
m=audio 10000 RTP/SAVP 8
c=IN IP4 198.51.100.1
a=crypto:1 AEAD_AES_256_GCM inline:53P5CsePy3hFUcuqsizkCnTE+4OKa1cOGa2WXHjoN19ifpweerTLaj+9vxc
a=crypto:2 AEAD_AES_128_GCM inline:QAXb41skvhZaVzQgiJH+y+P9HCUSTnQWXcuieA
a=crypto:3 AES_256_CM_HMAC_SHA1_80 inline:Ylhu0C+EN+fjasQ730KXQn/t+5vpKmhzs9TgWD1mvRiLHpwABTovh/pwpjjajg
a=crypto:4 AES_256_CM_HMAC_SHA1_32 inline:QmwGdHm6/VLHA2Et6NFw4i3g4Ely6SG8cWHHo+xTPREMRr0lfDMvr1p7CyXrog
a=crypto:5 AES_192_CM_HMAC_SHA1_80 inline:K/C34oakA6ko9ZsWyc90W/M/EEx+YFLu3qzxL2IdWXLulkPqDNE
a=crypto:6 AES_192_CM_HMAC_SHA1_32 inline:ig3qPKCMyU9aCG4YSysTxthgr3FkVdD1pXKVVOOEFeGHgnb7MBk
a=crypto:7 AES_CM_128_HMAC_SHA1_80 inline:Opr7g+J9VgQnRkCFNmL/0LP/dcF1Exu43qwiE0So
a=crypto:8 AES_CM_128_HMAC_SHA1_32 inline:LTwX81FUDIqkdr+g9ogW8T/HRoGmZF5snF97QAPF
a=crypto:9 F8_128_HMAC_SHA1_80 inline:sczm7mZYpQDbs5qGTMavRH89imN1tLcrJGJk+DG7
a=crypto:10 F8_128_HMAC_SHA1_32 inline:Gh+eY01+Uvw7gAbstjR0l91ZzuMn4h5JE9jaBYFq
a=crypto:11 NULL_HMAC_SHA1_80 inline:KPLgFC6jSYe7Xf7rVKi1zjm+CkfxLngL6L3o8kBu
a=crypto:12 NULL_HMAC_SHA1_32 inline:8ia0Ba4FPS/Dow99pIdt8BLIsq6xo7wn5pWR6zXB
----------------------------------
v=0
o=- 1545997027 1 IN IP4 198.51.101.40
s=tester
t=0 0
m=audio PORT RTP/SAVP 8
c=IN IP4 203.0.113.1
a=rtpmap:8 PCMA/8000
a=sendrecv
a=rtcp:PORT
a=crypto:1 AEAD_AES_256_GCM inline:53P5CsePy3hFUcuqsizkCnTE+4OKa1cOGa2WXHjoN19ifpweerTLaj+9vxc
a=crypto:2 AEAD_AES_128_GCM inline:QAXb41skvhZaVzQgiJH+y+P9HCUSTnQWXcuieA
a=crypto:3 AES_256_CM_HMAC_SHA1_80 inline:Ylhu0C+EN+fjasQ730KXQn/t+5vpKmhzs9TgWD1mvRiLHpwABTovh/pwpjjajg
a=crypto:4 AES_256_CM_HMAC_SHA1_32 inline:QmwGdHm6/VLHA2Et6NFw4i3g4Ely6SG8cWHHo+xTPREMRr0lfDMvr1p7CyXrog
a=crypto:5 AES_192_CM_HMAC_SHA1_80 inline:K/C34oakA6ko9ZsWyc90W/M/EEx+YFLu3qzxL2IdWXLulkPqDNE
a=crypto:6 AES_192_CM_HMAC_SHA1_32 inline:ig3qPKCMyU9aCG4YSysTxthgr3FkVdD1pXKVVOOEFeGHgnb7MBk
a=crypto:7 AES_CM_128_HMAC_SHA1_80 inline:Opr7g+J9VgQnRkCFNmL/0LP/dcF1Exu43qwiE0So
a=crypto:8 AES_CM_128_HMAC_SHA1_32 inline:LTwX81FUDIqkdr+g9ogW8T/HRoGmZF5snF97QAPF
a=crypto:9 F8_128_HMAC_SHA1_80 inline:sczm7mZYpQDbs5qGTMavRH89imN1tLcrJGJk+DG7
a=crypto:10 F8_128_HMAC_SHA1_32 inline:Gh+eY01+Uvw7gAbstjR0l91ZzuMn4h5JE9jaBYFq
a=crypto:11 NULL_HMAC_SHA1_80 inline:KPLgFC6jSYe7Xf7rVKi1zjm+CkfxLngL6L3o8kBu
a=crypto:12 NULL_HMAC_SHA1_32 inline:8ia0Ba4FPS/Dow99pIdt8BLIsq6xo7wn5pWR6zXB
SDP
answer('SDES=static',
{ }, <<SDP);
v=0
o=- 1545997027 1 IN IP4 198.51.101.40
s=tester
t=0 0
m=audio 20000 RTP/SAVP 8
c=IN IP4 198.51.100.1
a=crypto:1 AEAD_AES_256_GCM inline:555555ePy3hFUcuqsizkCnTE+4OKa1cOGa2WXHjoN19ifpweerTLaj+9vxc
----------------------------------
v=0
o=- 1545997027 1 IN IP4 198.51.101.40
s=tester
t=0 0
m=audio PORT RTP/SAVP 8
c=IN IP4 203.0.113.1
a=rtpmap:8 PCMA/8000
a=sendrecv
a=rtcp:PORT
a=crypto:1 AEAD_AES_256_GCM inline:555555ePy3hFUcuqsizkCnTE+4OKa1cOGa2WXHjoN19ifpweerTLaj+9vxc
SDP
offer('SDES=static',
{ DTLS => 'off' }, <<SDP);
v=0
o=- 1545997027 1 IN IP4 198.51.101.40
s=tester
t=0 0
m=audio 10000 RTP/SAVP 8
c=IN IP4 198.51.100.1
a=crypto:1 AEAD_AES_256_GCM inline:53P5CsePy3hFUcuqsizkCnTE+4OKa1cOGa2WXHjoN19ifpweerTLaj+9vxc
a=crypto:2 AEAD_AES_128_GCM inline:QAXb41skvhZaVzQgiJH+y+P9HCUSTnQWXcuieA
a=crypto:3 AES_256_CM_HMAC_SHA1_80 inline:Ylhu0C+EN+fjasQ730KXQn/t+5vpKmhzs9TgWD1mvRiLHpwABTovh/pwpjjajg
a=crypto:4 AES_256_CM_HMAC_SHA1_32 inline:QmwGdHm6/VLHA2Et6NFw4i3g4Ely6SG8cWHHo+xTPREMRr0lfDMvr1p7CyXrog
a=crypto:5 AES_192_CM_HMAC_SHA1_80 inline:K/C34oakA6ko9ZsWyc90W/M/EEx+YFLu3qzxL2IdWXLulkPqDNE
a=crypto:6 AES_192_CM_HMAC_SHA1_32 inline:ig3qPKCMyU9aCG4YSysTxthgr3FkVdD1pXKVVOOEFeGHgnb7MBk
a=crypto:7 AES_CM_128_HMAC_SHA1_80 inline:Opr7g+J9VgQnRkCFNmL/0LP/dcF1Exu43qwiE0So
a=crypto:8 AES_CM_128_HMAC_SHA1_32 inline:LTwX81FUDIqkdr+g9ogW8T/HRoGmZF5snF97QAPF
a=crypto:9 F8_128_HMAC_SHA1_80 inline:sczm7mZYpQDbs5qGTMavRH89imN1tLcrJGJk+DG7
a=crypto:10 F8_128_HMAC_SHA1_32 inline:Gh+eY01+Uvw7gAbstjR0l91ZzuMn4h5JE9jaBYFq
a=crypto:11 NULL_HMAC_SHA1_80 inline:KPLgFC6jSYe7Xf7rVKi1zjm+CkfxLngL6L3o8kBu
a=crypto:12 NULL_HMAC_SHA1_32 inline:8ia0Ba4FPS/Dow99pIdt8BLIsq6xo7wn5pWR6zXB
----------------------------------
v=0
o=- 1545997027 1 IN IP4 198.51.101.40
s=tester
t=0 0
m=audio PORT RTP/SAVP 8
c=IN IP4 203.0.113.1
a=rtpmap:8 PCMA/8000
a=sendrecv
a=rtcp:PORT
a=crypto:1 AEAD_AES_256_GCM inline:53P5CsePy3hFUcuqsizkCnTE+4OKa1cOGa2WXHjoN19ifpweerTLaj+9vxc
a=crypto:2 AEAD_AES_128_GCM inline:QAXb41skvhZaVzQgiJH+y+P9HCUSTnQWXcuieA
a=crypto:3 AES_256_CM_HMAC_SHA1_80 inline:Ylhu0C+EN+fjasQ730KXQn/t+5vpKmhzs9TgWD1mvRiLHpwABTovh/pwpjjajg
a=crypto:4 AES_256_CM_HMAC_SHA1_32 inline:QmwGdHm6/VLHA2Et6NFw4i3g4Ely6SG8cWHHo+xTPREMRr0lfDMvr1p7CyXrog
a=crypto:5 AES_192_CM_HMAC_SHA1_80 inline:K/C34oakA6ko9ZsWyc90W/M/EEx+YFLu3qzxL2IdWXLulkPqDNE
a=crypto:6 AES_192_CM_HMAC_SHA1_32 inline:ig3qPKCMyU9aCG4YSysTxthgr3FkVdD1pXKVVOOEFeGHgnb7MBk
a=crypto:7 AES_CM_128_HMAC_SHA1_80 inline:Opr7g+J9VgQnRkCFNmL/0LP/dcF1Exu43qwiE0So
a=crypto:8 AES_CM_128_HMAC_SHA1_32 inline:LTwX81FUDIqkdr+g9ogW8T/HRoGmZF5snF97QAPF
a=crypto:9 F8_128_HMAC_SHA1_80 inline:sczm7mZYpQDbs5qGTMavRH89imN1tLcrJGJk+DG7
a=crypto:10 F8_128_HMAC_SHA1_32 inline:Gh+eY01+Uvw7gAbstjR0l91ZzuMn4h5JE9jaBYFq
a=crypto:11 NULL_HMAC_SHA1_80 inline:KPLgFC6jSYe7Xf7rVKi1zjm+CkfxLngL6L3o8kBu
a=crypto:12 NULL_HMAC_SHA1_32 inline:8ia0Ba4FPS/Dow99pIdt8BLIsq6xo7wn5pWR6zXB
SDP
answer('SDES=static',
{ SDES => ['static'] }, <<SDP);
v=0
o=- 1545997027 1 IN IP4 198.51.101.40
s=tester
t=0 0
m=audio 20000 RTP/SAVP 8
c=IN IP4 198.51.100.1
a=crypto:7 AES_CM_128_HMAC_SHA1_80 inline:O3333333333nRkCFNmL/0LP/dcF1Exu43qwiE0So
----------------------------------
v=0
o=- 1545997027 1 IN IP4 198.51.101.40
s=tester
t=0 0
m=audio PORT RTP/SAVP 8
c=IN IP4 203.0.113.1
a=rtpmap:8 PCMA/8000
a=sendrecv
a=rtcp:PORT
a=crypto:1 AEAD_AES_256_GCM inline:555555ePy3hFUcuqsizkCnTE+4OKa1cOGa2WXHjoN19ifpweerTLaj+9vxc
SDP
new_call;
($port_a, undef, $ufrag_a) = offer('ICE re-invite',

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