sr-dev August 2019

sr-dev@lists.kamailio.org

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339 discussions

[kamailio/kamailio] Kemi sqlops memory leak (#2032)
by Sebastian Damm 14 Aug '19

14 Aug '19

### Description We are running Kamailio 5.1.x in a mixed native/Kemi environment. That means, most of the config is still native Kamailio language, but some newer functions were written in JS and included via `jsdt_run("...");`. In one of those functions, we place an sqlops query. And since introducing this code, Kamailio leaks memory. Slowly, but eventually, the private memory will fill up. ### Troubleshooting #### Reproduction In Kamailio, the code looks like this: ``` if (!jsdt_run("ksrIsCallAccountingRequired", "$(var(accentries){s.select,10,|})", "$(var(accentries){s.select,12,|})")) { xlog("L_ERR", "JS Call of ksrIsCallAccountingRequired route failed.\n"); } ``` And our JS code containing sqlops looks like this: ``` extension = '1234567e0'; mastersipid = '1234567'; KSR.sqlops.sql_query( "dbconn", `SELECT username, grp FROM grp WHERE username IN ('${mastersipid}', '${extension}') AND grp = 'ourGroupName'`, user ); ``` For each call, this query is executed once. Depending on the traffic, you can see the private package memory starting to fill up quicker or slower. #### Debugging Data ### Possible Solutions We had a similar problem about two years ago with app_lua and getting entries from a hash table, which we solved by introducing a temporary variable for using in the hash table index instead of strings. We tried doing the same thing in our current setup: ``` KSR.pv.sets("$var(extensionForQuery)", extension); KSR.pv.sets("$var(masterSipidForQuery)", masterSipid); KSR.sqlops.sql_query( "dbconn", "SELECT username, grp FROM grp WHERE username IN ('$var(masterSipidForQuery)', '$var(extensionForQuery)') AND grp = 'ourGroupName'", user ); ``` However, Kamailio doesn't replace the variables in the query string. Although the documentation of the sqlops module says, it supports pseudovars in the query string. We even tried putting the whole query into a variable, but ended up with a sqlops error. ### Additional Information ``` ersion: kamailio 5.1.4 (x86_64/linux) flags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: unknown compiled with gcc 4.7.2 ``` * **Operating System**: ``` Debian Wheezy (yeah, I know... ) ``` -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/2032

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git:master:897f58fd: sqlops: add a limit of maximum 32 result containers
by Daniel-Constantin Mierla 14 Aug '19

14 Aug '19

Module: kamailio Branch: master Commit: 897f58fd48c68d88df7967c1390a23f8b9069a61 URL: https://github.com/kamailio/kamailio/commit/897f58fd48c68d88df7967c1390a23f… Author: Daniel-Constantin Mierla <miconda(a)gmail.com> Committer: Daniel-Constantin Mierla <miconda(a)gmail.com> Date: 2019-08-14T09:53:17+02:00 sqlops: add a limit of maximum 32 result containers - prevent use of too much memory by defining too many result containers - related to GH #2032 --- Modified: src/modules/sqlops/sql_api.c Modified: src/modules/sqlops/sqlops.c --- Diff: https://github.com/kamailio/kamailio/commit/897f58fd48c68d88df7967c1390a23f… Patch: https://github.com/kamailio/kamailio/commit/897f58fd48c68d88df7967c1390a23f… --- diff --git a/src/modules/sqlops/sql_api.c b/src/modules/sqlops/sql_api.c index 54c123f85e..748d77320e 100644 --- a/src/modules/sqlops/sql_api.c +++ b/src/modules/sqlops/sql_api.c @@ -35,6 +35,8 @@ #include "sql_api.h" +#define SQLOPS_RESULT_MAXSIZE 32 + sql_con_t *_sql_con_root = NULL; sql_result_t *_sql_result_root = NULL; @@ -209,17 +211,25 @@ sql_result_t* sql_get_result(str *name) { sql_result_t *sr; unsigned int resid; + int i; resid = core_case_hash(name, 0, 0); sr = _sql_result_root; + i = 0; while(sr) { if(sr->resid==resid && sr->name.len==name->len && strncmp(sr->name.s, name->s, name->len)==0) return sr; + i++; sr = sr->next; } + if(i>SQLOPS_RESULT_MAXSIZE) + { + LM_ERR("too many result containers defined\n"); + return NULL; + } sr = (sql_result_t*)pkg_malloc(sizeof(sql_result_t) + name->len); if(sr==NULL) { @@ -736,7 +746,7 @@ int sqlops_do_query(str *scon, str *squery, str *sres) res = sql_get_result(sres); if(res==NULL) { - LM_ERR("invalid result [%.*s]\n", sres->len, sres->s); + LM_ERR("invalid result container [%.*s]\n", sres->len, sres->s); goto error; } } @@ -764,7 +774,7 @@ int sqlops_get_value(str *sres, int i, int j, sql_val_t **val) res = sql_get_result(sres); if(res==NULL) { - LM_ERR("invalid result [%.*s]\n", sres->len, sres->s); + LM_ERR("invalid result container [%.*s]\n", sres->len, sres->s); goto error; } if(i>=res->nrows) @@ -800,7 +810,7 @@ int sqlops_is_null(str *sres, int i, int j) res = sql_get_result(sres); if(res==NULL) { - LM_ERR("invalid result [%.*s]\n", sres->len, sres->s); + LM_ERR("invalid result container [%.*s]\n", sres->len, sres->s); goto error; } if(i>=res->nrows) @@ -836,7 +846,7 @@ int sqlops_get_column(str *sres, int i, str *col) res = sql_get_result(sres); if(res==NULL) { - LM_ERR("invalid result [%.*s]\n", sres->len, sres->s); + LM_ERR("invalid result container [%.*s]\n", sres->len, sres->s); goto error; } if(i>=res->ncols) @@ -866,7 +876,7 @@ int sqlops_num_columns(str *sres) res = sql_get_result(sres); if(res==NULL) { - LM_ERR("invalid result [%.*s]\n", sres->len, sres->s); + LM_ERR("invalid result container [%.*s]\n", sres->len, sres->s); goto error; } return res->ncols; @@ -890,7 +900,7 @@ int sqlops_num_rows(str *sres) res = sql_get_result(sres); if(res==NULL) { - LM_ERR("invalid result [%.*s]\n", sres->len, sres->s); + LM_ERR("invalid result container [%.*s]\n", sres->len, sres->s); goto error; } return res->nrows; @@ -914,7 +924,7 @@ void sqlops_reset_result(str *sres) res = sql_get_result(sres); if(res==NULL) { - LM_ERR("invalid result [%.*s]\n", sres->len, sres->s); + LM_ERR("invalid result container [%.*s]\n", sres->len, sres->s); return; } sql_reset_result(res); diff --git a/src/modules/sqlops/sqlops.c b/src/modules/sqlops/sqlops.c index 1b16c06ed7..3943b1b81a 100644 --- a/src/modules/sqlops/sqlops.c +++ b/src/modules/sqlops/sqlops.c @@ -205,7 +205,7 @@ int sql_res_param(modparam_t type, void *val) res = sql_get_result(&s); if(res==NULL) { - LM_ERR("invalid result [%s]\n", s.s); + LM_ERR("invalid result container [%s]\n", s.s); goto error; } return 0; @@ -335,7 +335,7 @@ static int fixup_sql_query(void** param, int param_no) res = sql_get_result(&s); if(res==NULL) { - LM_ERR("invalid result [%s]\n", s.s); + LM_ERR("invalid result container [%s]\n", s.s); return E_UNSPEC; } *param = (void*)res; @@ -458,7 +458,7 @@ static int fixup_sql_rfree(void** param, int param_no) res = sql_get_result(&s); if(res==NULL) { - LM_ERR("invalid result [%s]\n", s.s); + LM_ERR("invalid result container [%s]\n", s.s); return E_UNSPEC; } *param = (void*)res;

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git:5.2:f4f08a90: pkg/kamailio/deb: version set to 5.2.4 [skip ci]
by Victor Seva 14 Aug '19

14 Aug '19

Module: kamailio Branch: 5.2 Commit: f4f08a901bd798acd237851c7299c6d07083974e URL: https://github.com/kamailio/kamailio/commit/f4f08a901bd798acd237851c7299c6d… Author: Victor Seva <linuxmaniac(a)torreviejawireless.org> Committer: Victor Seva <linuxmaniac(a)torreviejawireless.org> Date: 2019-08-14T08:32:33+02:00 pkg/kamailio/deb: version set to 5.2.4 [skip ci] --- Modified: pkg/kamailio/deb/bionic/changelog Modified: pkg/kamailio/deb/buster/changelog Modified: pkg/kamailio/deb/debian/changelog Modified: pkg/kamailio/deb/jessie/changelog Modified: pkg/kamailio/deb/precise/changelog Modified: pkg/kamailio/deb/sid/changelog Modified: pkg/kamailio/deb/stretch/changelog Modified: pkg/kamailio/deb/trusty/changelog Modified: pkg/kamailio/deb/wheezy/changelog Modified: pkg/kamailio/deb/xenial/changelog --- Diff: https://github.com/kamailio/kamailio/commit/f4f08a901bd798acd237851c7299c6d… Patch: https://github.com/kamailio/kamailio/commit/f4f08a901bd798acd237851c7299c6d…

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Planning the release of Kamailio v5.2.4
by Daniel-Constantin Mierla 14 Aug '19

14 Aug '19

Hello, I am considering to do soon a new release out of branch 5.2, respectively v5.2.4. I am aiming for August 12 or August 14, a matter of how backporting is finished, given that next week some devs travel to ClueCon. As usual, if you are aware of issues not reported yet on bug tracker or fixes not yet backported to branch 5.2, act during the next days to have enough time to approach them. Cheers, Daniel -- Daniel-Constantin Mierla -- www.asipto.com www.twitter.com/miconda -- www.linkedin.com/in/miconda

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git:master:29eb7561: rr: use msg_ctx_id_t for caching of request direction
by Daniel-Constantin Mierla 13 Aug '19

13 Aug '19

Module: kamailio Branch: master Commit: 29eb75611987c58a32904f5094055efa33c1c89a URL: https://github.com/kamailio/kamailio/commit/29eb75611987c58a32904f5094055ef… Author: Daniel-Constantin Mierla <miconda(a)gmail.com> Committer: Daniel-Constantin Mierla <miconda(a)gmail.com> Date: 2019-08-13T16:38:04+02:00 rr: use msg_ctx_id_t for caching of request direction --- Modified: src/modules/rr/loose.c --- Diff: https://github.com/kamailio/kamailio/commit/29eb75611987c58a32904f5094055ef… Patch: https://github.com/kamailio/kamailio/commit/29eb75611987c58a32904f5094055ef… --- diff --git a/src/modules/rr/loose.c b/src/modules/rr/loose.c index 37fa04f33d..fed7cc7140 100644 --- a/src/modules/rr/loose.c +++ b/src/modules/rr/loose.c @@ -1218,12 +1218,12 @@ int get_route_param(sip_msg_t *msg, str *name, str *val) int is_direction(struct sip_msg * msg, int dir) { static str ftag_param = {"ftag",4}; - static unsigned int last_id = (unsigned int)-1; + static msg_ctx_id_t last_id = {0}; static unsigned int last_dir = 0; str ftag_val; str tag; - if ( last_id==msg->id && last_dir!=0) { + if ( last_id.msgid==msg->id && last_id.pid==msg->pid && last_dir!=0) { if (last_dir==RR_FLOW_UPSTREAM) goto upstream; else @@ -1256,11 +1256,13 @@ int is_direction(struct sip_msg * msg, int dir) goto upstream; downstream: - last_id = msg->id; + last_id.msgid = msg->id; + last_id.pid = msg->pid; last_dir = RR_FLOW_DOWNSTREAM; return (dir==RR_FLOW_DOWNSTREAM)?0:-1; upstream: - last_id = msg->id; + last_id.msgid = msg->id; + last_id.pid = msg->pid; last_dir = RR_FLOW_UPSTREAM; return (dir==RR_FLOW_UPSTREAM)?0:-1; }

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git:master:8d4ba1c5: rr: use msg_ctx_id_t for record route params caching
by Daniel-Constantin Mierla 13 Aug '19

13 Aug '19

Module: kamailio Branch: master Commit: 8d4ba1c577601c51903cc4b1bee8012318f70b54 URL: https://github.com/kamailio/kamailio/commit/8d4ba1c577601c51903cc4b1bee8012… Author: Daniel-Constantin Mierla <miconda(a)gmail.com> Committer: Daniel-Constantin Mierla <miconda(a)gmail.com> Date: 2019-08-13T16:38:04+02:00 rr: use msg_ctx_id_t for record route params caching --- Modified: src/modules/rr/loose.c --- Diff: https://github.com/kamailio/kamailio/commit/8d4ba1c577601c51903cc4b1bee8012… Patch: https://github.com/kamailio/kamailio/commit/8d4ba1c577601c51903cc4b1bee8012… --- diff --git a/src/modules/rr/loose.c b/src/modules/rr/loose.c index e9138985f3..37fa04f33d 100644 --- a/src/modules/rr/loose.c +++ b/src/modules/rr/loose.c @@ -57,8 +57,7 @@ #define ROUTE_SUFFIX_LEN (sizeof(ROUTE_SUFFIX)-1) /*! variables used to hook the param part of the local route */ -static unsigned int routed_msg_id = 0; -static int routed_msg_pid = 0; +static msg_ctx_id_t routed_msg_id = {0}; static str routed_params = {0,0}; extern int rr_force_send_socket; @@ -585,8 +584,8 @@ static inline int after_strict(struct sip_msg* _m) uri = rt->nameaddr.uri; /* reset rr handling static vars for safety in error case */ - routed_msg_id = 0; - routed_msg_pid = 0; + routed_msg_id.msgid = 0; + routed_msg_id.pid = 0; routed_params.s = NULL; routed_params.len = 0; @@ -637,8 +636,8 @@ static inline int after_strict(struct sip_msg* _m) /* set the hooks for the param * important note: RURI is already parsed by the above function, so * we just used it without any checking */ - routed_msg_id = _m->id; - routed_msg_pid = _m->pid; + routed_msg_id.msgid = _m->id; + routed_msg_id.pid = _m->pid; routed_params = _m->parsed_uri.params; if (is_strict(&puri.params)) { @@ -794,8 +793,8 @@ static inline int after_loose(struct sip_msg* _m, int preloaded) uri = rt->nameaddr.uri; /* reset rr handling static vars for safety in error case */ - routed_msg_id = 0; - routed_msg_pid = 0; + routed_msg_id.msgid = 0; + routed_msg_id.pid = 0; if (parse_uri(uri.s, uri.len, &puri) < 0) { LM_ERR("failed to parse the first route URI (%.*s)\n", @@ -812,8 +811,8 @@ static inline int after_loose(struct sip_msg* _m, int preloaded) LM_DBG("Topmost route URI: '%.*s' is me\n", uri.len, ZSW(uri.s)); /* set the hooks for the params */ - routed_msg_id = _m->id; - routed_msg_pid = _m->pid; + routed_msg_id.msgid = _m->id; + routed_msg_id.pid = _m->pid; if ((use_ob = process_outbound(_m, puri.user)) < 0) { LM_INFO("failed to process outbound flow-token\n"); @@ -1015,7 +1014,7 @@ int redo_route_params(sip_msg_t *msg) } /* check if the hooked params belong to the same message */ - if (routed_msg_id != msg->id || routed_msg_pid != msg->pid) { + if (routed_msg_id.msgid != msg->id || routed_msg_id.pid != msg->pid) { redo = 1; } if((redo==0) && (routed_params.s==NULL || routed_params.len<=0)) { @@ -1031,8 +1030,8 @@ int redo_route_params(sip_msg_t *msg) uri = rt->nameaddr.uri; /* reset rr handling static vars for safety in error case */ - routed_msg_id = 0; - routed_msg_pid = 0; + routed_msg_id.msgid = 0; + routed_msg_id.pid = 0; if (parse_uri(uri.s, uri.len, &puri) < 0) { LM_ERR("failed to parse the first route URI (%.*s)\n", @@ -1047,8 +1046,8 @@ int redo_route_params(sip_msg_t *msg) LM_DBG("Topmost route URI: '%.*s' is me\n", uri.len, ZSW(uri.s)); /* set the hooks for the params */ - routed_msg_id = msg->id; - routed_msg_pid = msg->pid; + routed_msg_id.msgid = msg->id; + routed_msg_id.pid = msg->pid; routed_params = puri.params; return 0; } else {

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git:master:7dca532c: modules: readme files regenerated - rr ... [skip ci]
by Kamailio Dev 13 Aug '19

13 Aug '19

Module: kamailio Branch: master Commit: 7dca532cf3ab3aed35571134081b3715b6fa75c8 URL: https://github.com/kamailio/kamailio/commit/7dca532cf3ab3aed35571134081b371… Author: Kamailio Dev <kamailio.dev(a)kamailio.org> Committer: Kamailio Dev <kamailio.dev(a)kamailio.org> Date: 2019-08-13T16:16:41+02:00 modules: readme files regenerated - rr ... [skip ci] --- Modified: src/modules/rr/README --- Diff: https://github.com/kamailio/kamailio/commit/7dca532cf3ab3aed35571134081b371… Patch: https://github.com/kamailio/kamailio/commit/7dca532cf3ab3aed35571134081b371… --- diff --git a/src/modules/rr/README b/src/modules/rr/README index 4fe696ee3a..1b1ef14557 100644 --- a/src/modules/rr/README +++ b/src/modules/rr/README @@ -16,8 +16,6 @@ Edited by Jan Janak -Edited by - Bogdan-Andrei Iancu Copyright © 2003 FhG FOKUS @@ -52,7 +50,7 @@ Bogdan-Andrei Iancu 5. Functions 5.1. loose_route() - 5.2. record_route() and record_route(string) + 5.2. record_route([sparams]) 5.3. remove_record_route() 5.4. record_route_preset(string [,string2]) 5.5. record_route_advertised_address(address) @@ -128,7 +126,7 @@ Chapter 1. Admin Guide 5. Functions 5.1. loose_route() - 5.2. record_route() and record_route(string) + 5.2. record_route([sparams]) 5.3. remove_record_route() 5.4. record_route_preset(string [,string2]) 5.5. record_route_advertised_address(address) @@ -362,7 +360,7 @@ modparam("rr", "ignore_sips", 1) 5. Functions 5.1. loose_route() - 5.2. record_route() and record_route(string) + 5.2. record_route([sparams]) 5.3. remove_record_route() 5.4. record_route_preset(string [,string2]) 5.5. record_route_advertised_address(address) @@ -417,7 +415,7 @@ modparam("rr", "ignore_sips", 1) loose_route(); ... -5.2. record_route() and record_route(string) +5.2. record_route([sparams]) The function adds a new Record-Route header field. The header field will be inserted in the message before any other Record-Route header @@ -432,6 +430,10 @@ loose_route(); generate and add a flow-token as the username part of the Record-Route-URI. + Note: if append From-tag is enabled and the function is used for + requests within dialog, it must be executed after loose_route() in + order to detect properly the direction. + This function can be used from REQUEST_ROUTE, BRANCH_ROUTE and FAILURE_ROUTE.

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git:master:6542a638: rr: docs - note about use of record_route() for requests within dialog
by Daniel-Constantin Mierla 13 Aug '19

13 Aug '19

Module: kamailio Branch: master Commit: 6542a638bee90afdbfe63b59d9d7f1d23b0406aa URL: https://github.com/kamailio/kamailio/commit/6542a638bee90afdbfe63b59d9d7f1d… Author: Daniel-Constantin Mierla <miconda(a)gmail.com> Committer: Daniel-Constantin Mierla <miconda(a)gmail.com> Date: 2019-08-13T16:07:05+02:00 rr: docs - note about use of record_route() for requests within dialog - it has to be used after loose_route() for a proper detection of request direction --- Modified: src/modules/rr/doc/rr_admin.xml --- Diff: https://github.com/kamailio/kamailio/commit/6542a638bee90afdbfe63b59d9d7f1d… Patch: https://github.com/kamailio/kamailio/commit/6542a638bee90afdbfe63b59d9d7f1d… --- diff --git a/src/modules/rr/doc/rr_admin.xml b/src/modules/rr/doc/rr_admin.xml index 74e59abe82..362edd4f1f 100644 --- a/src/modules/rr/doc/rr_admin.xml +++ b/src/modules/rr/doc/rr_admin.xml @@ -397,8 +397,7 @@ loose_route(); </section> <section id="rr.f.record_route"> - <title><function moreinfo="none">record_route()</function> and <function - moreinfo="none">record_route(string)</function></title> + <title><function moreinfo="none">record_route([sparams])</function></title> <para>The function adds a new Record-Route header field. The header field will be inserted in the message before any other Record-Route @@ -414,6 +413,10 @@ loose_route(); request and generate and add a flow-token as the username part of the Record-Route-URI.</para> + <para>Note: if append From-tag is enabled and the function is used for requests + within dialog, it must be executed after loose_route() in order to detect + properly the direction.</para> + <para>This function can be used from REQUEST_ROUTE, BRANCH_ROUTE and FAILURE_ROUTE.</para>

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git:master:8546983d: modules: readme files regenerated - registrar ... [skip ci]
by Kamailio Dev 13 Aug '19

13 Aug '19

Module: kamailio Branch: master Commit: 8546983de13bba7ed7a84a88ed91027e4291a1bc URL: https://github.com/kamailio/kamailio/commit/8546983de13bba7ed7a84a88ed91027… Author: Kamailio Dev <kamailio.dev(a)kamailio.org> Committer: Kamailio Dev <kamailio.dev(a)kamailio.org> Date: 2019-08-13T10:16:43+02:00 modules: readme files regenerated - registrar ... [skip ci] --- Modified: src/modules/registrar/README --- Diff: https://github.com/kamailio/kamailio/commit/8546983de13bba7ed7a84a88ed91027… Patch: https://github.com/kamailio/kamailio/commit/8546983de13bba7ed7a84a88ed91027… --- diff --git a/src/modules/registrar/README b/src/modules/registrar/README index d55fc5a7c9..e4516756e6 100644 --- a/src/modules/registrar/README +++ b/src/modules/registrar/README @@ -1070,7 +1070,7 @@ add_sock_hdr("Sock-Info"); * ruid - The record unique ID for a a specific contact to be removed. It can contain pseudo-variables that are evaluated at runtime. - This function can be used from REQUEST_ROUTE, FAILURE_ROUTE. + This function can be used from ANY_ROUTE. Return values: * 0 - Successfully deleted contact(s)

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git:master:23a5b8d9: registrar: updated docs for unregister()
by Daniel-Constantin Mierla 13 Aug '19

13 Aug '19

Module: kamailio Branch: master Commit: 23a5b8d9baf40a416401017324ceb01e7d769494 URL: https://github.com/kamailio/kamailio/commit/23a5b8d9baf40a416401017324ceb01… Author: Daniel-Constantin Mierla <miconda(a)gmail.com> Committer: Daniel-Constantin Mierla <miconda(a)gmail.com> Date: 2019-08-13T10:03:32+02:00 registrar: updated docs for unregister() - function is allowed to be used in any route --- Modified: src/modules/registrar/doc/registrar_admin.xml --- Diff: https://github.com/kamailio/kamailio/commit/23a5b8d9baf40a416401017324ceb01… Patch: https://github.com/kamailio/kamailio/commit/23a5b8d9baf40a416401017324ceb01… --- diff --git a/src/modules/registrar/doc/registrar_admin.xml b/src/modules/registrar/doc/registrar_admin.xml index 32752eac89..67e13e09e3 100644 --- a/src/modules/registrar/doc/registrar_admin.xml +++ b/src/modules/registrar/doc/registrar_admin.xml @@ -1400,7 +1400,7 @@ add_sock_hdr("Sock-Info"); </listitem> </itemizedlist> <para> - This function can be used from REQUEST_ROUTE, FAILURE_ROUTE. + This function can be used from ANY_ROUTE. </para> <para> Return values:

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sr-dev August 2019