sr-dev May 2014

sr-dev@lists.kamailio.org

34 participants
238 discussions

git:master: core: add check_boundaries() to build_req_buf_from_sip_req().

by Victor Seva

Module: sip-router Branch: master Commit: 8f007d20933f1d1deaac1c9c5ece9be2a4b9987c URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=8f007d2… Author: Victor Seva <linuxmaniac(a)torreviejawireless.org> Committer: Victor Seva <linuxmaniac(a)torreviejawireless.org> Date: Fri Mar 21 21:56:04 2014 +0100 core: add check_boundaries() to build_req_buf_from_sip_req(). This checks and fixes the boundaries of a multipart body if the FL_BODY_MULTIPART flag is set. --- msg_translator.c | 302 +++++++++++++++++++++++++++++++++++++++++++++++++++++- msg_translator.h | 3 + 2 files changed, 302 insertions(+), 3 deletions(-) diff --git a/msg_translator.c b/msg_translator.c index 23a9157..6020fce 100644 --- a/msg_translator.c +++ b/msg_translator.c @@ -147,8 +147,9 @@ #include "pt.h" #include "cfg/cfg.h" #include "parser/parse_to.h" +#include "parser/parse_param.h" #include "forward.h" - +#include "str_list.h" #define append_str_trans(_dest,_src,_len,_msg) \ append_str( (_dest), (_src), (_len) ); @@ -1620,7 +1621,301 @@ error: return -1; } +static inline int find_line_start(char *text, unsigned int text_len, + char **buf, unsigned int *buf_len) +{ + char *ch, *start; + unsigned int len; + + start = *buf; + len = *buf_len; + + while (text_len <= len) { + if (strncmp(text, start, text_len) == 0) { + *buf = start; + *buf_len = len; + return 1; + } + if ((ch = memchr(start, 13, len - 1))) { + if (*(ch + 1) != 10) { + LM_ERR("No LF after CR\n"); + return 0; + } + len = len - (ch - start + 2); + start = ch + 2; + } else { + LM_ERR("No CRLF found\n"); + return 0; + } + } + return 0; +} + +static inline int get_line(str s) +{ + char *ch; + + if ((ch = memchr(s.s, 13, s.len))) { + if (*(ch + 1) != 10) { + LM_ERR("No LF after CR\n"); + return 0; + } + return ch - s.s + 2; + } else { + LM_ERR("No CRLF found\n"); + return s.len; + } + return 0; +} + +int replace_body(struct sip_msg *msg, str txt) +{ + struct lump *anchor; + char *buf; + str body = {0,0}; + + body.s = get_body(msg); + if(body.s==0) + { + LM_ERR("malformed sip message\n"); + return 0; + } + body.len = msg->len -(int)(body.s-msg->buf); + LM_DBG("old size body[%d] actual[%d]\n", body.len, txt.len); + if(body.s+body.len>msg->buf+msg->len) + { + LM_ERR("invalid content length: %d\n", body.len); + return 0; + } + del_nonshm_lump( &(msg->body_lumps) ); + msg->body_lumps = NULL; + + if(del_lump(msg, body.s-msg->buf, body.len, 0) == 0) + { + LM_ERR("cannot delete existing body"); + return 0; + } + + anchor = anchor_lump(msg, body.s - msg->buf, 0, 0); + if(anchor==0) + { + LM_ERR("failed to get anchor\n"); + return 0; + } + + buf=pkg_malloc(sizeof(char)*txt.len); + if(buf==0) + { + PKG_MEM_ERROR; + return 0; + } + memcpy(buf, txt.s, txt.len); + if(insert_new_lump_after(anchor, buf, txt.len, 0)==0) + { + LM_ERR("failed to insert body lump\n"); + pkg_free(buf); + return 0; + } + return 1; +} + +/** + * returns the boundary defined by the Content-Type + * header + */ +int get_boundary(struct sip_msg* msg, str* boundary) +{ + str params; + param_t *p, *list; + param_hooks_t hooks; + + params.s = memchr(msg->content_type->body.s, ';', + msg->content_type->body.len); + if (params.s == NULL) + { + LM_ERR("Content-Type hdr has no params\n"); + return -1; + } + params.len = msg->content_type->body.len - + (params.s - msg->content_type->body.s); + if (parse_params(&params, CLASS_ANY, &hooks, &list) < 0) + { + LM_ERR("while parsing Content-Type params\n"); + return -1; + } + boundary->s = NULL; + boundary->len = 0; + for (p = list; p; p = p->next) { + if ((p->name.len == 8) + && (strncasecmp(p->name.s, "boundary", 8) == 0)) + { + boundary->s = pkg_malloc(p->body.len + 2); + if (boundary->s == NULL) + { + free_params(list); + LM_ERR("no memory for boundary string\n"); + return -1; + } + *(boundary->s) = '-'; + *(boundary->s + 1) = '-'; + memcpy(boundary->s + 2, p->body.s, p->body.len); + boundary->len = 2 + p->body.len; + LM_DBG("boundary is <%.*s>\n", boundary->len, boundary->s); + break; + } + } + free_params(list); + return 0; +} + +int check_boundaries(struct sip_msg *msg, struct dest_info *send_info) +{ + str b = {0,0}; + str fb = {0,0}; + str ob = {0,0}; + str bsuffix = {"\r\n", 2}; + str fsuffix = {"--\r\n", 4}; + str body = {0,0}; + str buf = {0,0}; + str tmp = {0,0}; + struct str_list* lb = NULL; + struct str_list* lb_t = NULL; + int lb_found = 0; + int t, ret, lb_size; + char *pb; + + if(!(msg->msg_flags&FL_BODY_MULTIPART)) return 0; + else + { + buf.s = build_body(msg, (unsigned int *)&buf.len, &ret, send_info); + if(ret) { + LM_ERR("Can't get body\n"); + return -1; + } + tmp.s = buf.s; + t = tmp.len = buf.len; + if(get_boundary(msg, &ob)!=0) return -1; + if(str_append(&ob, &bsuffix, &b)!=0) { + LM_ERR("Can't append suffix to boundary\n"); + goto error; + } + if(str_append(&ob, &fsuffix,&fb)!=0) { + LM_ERR("Can't append suffix to final boundary\n"); + goto error; + } + ret = b.len-2; + while(t>0) + { + if(find_line_start(b.s, ret, &tmp.s, + (unsigned int *)&tmp.len)) + { + /*LM_DBG("found t[%d] tmp.len[%d]:[%.*s]\n", + t, tmp.len, tmp.len, tmp.s);*/ + if(!lb) + { + lb = pkg_malloc(sizeof(struct str_list)); + if (!lb) { + PKG_MEM_ERROR; + goto error; + } + lb->s.s = tmp.s; + lb->s.len = tmp.len; + lb->next = 0; + lb_t = lb; + } + else + { + lb_t = append_str_list(tmp.s, tmp.len, &lb_t, &lb_size); + } + lb_found = lb_found + 1; + tmp.s = tmp.s + ret; + t = t - ret; + tmp.len = tmp.len - ret; + } + else { t=0; } + } + if(lb_found<2) + { + LM_ERR("found[%d] wrong number of boundaries\n", lb_found); + goto error; + } + /* adding 2 chars in advance */ + body.len = buf.len + 2; + body.s = pkg_malloc(sizeof(char)*body.len); + if (!body.s) { + PKG_MEM_ERROR; + goto error; + } + pb = body.s; body.len = 0; + lb_t = lb; + while(lb_t) + { + tmp.s = lb_t->s.s; tmp.len = lb_t->s.len; + tmp.len = get_line(lb_t->s); + if(tmp.len!=b.len || strncmp(b.s, tmp.s, b.len)!=0) + { + LM_DBG("malformed bondary in the middle\n"); + memcpy(pb, b.s, b.len); body.len = body.len + b.len; + pb = pb + b.len; + t = lb_t->s.s - (lb_t->s.s + tmp.len); + memcpy(pb, lb_t->s.s+tmp.len, t); pb = pb + t; + /*LM_DBG("new chunk[%d][%.*s]\n", t, t, pb-t);*/ + } + else { + t = lb_t->next->s.s - lb_t->s.s; + memcpy(pb, lb_t->s.s, t); + /*LM_DBG("copy[%d][%.*s]\n", t, t, pb);*/ + pb = pb + t; + } + body.len = body.len + t; + /*LM_DBG("body[%d][%.*s]\n", body.len, body.len, body.s);*/ + lb_t = lb_t->next; + if(!lb_t->next) lb_t = NULL; + } + /* last boundary */ + tmp.s = lb->s.s; tmp.len = lb->s.len; + tmp.len = get_line(lb->s); + if(tmp.len!=fb.len || strncmp(fb.s, tmp.s, fb.len)!=0) + { + LM_DBG("last bondary without -- at the end\n"); + memcpy(pb, fb.s, fb.len); + /*LM_DBG("new chunk[%d][%.*s]\n", fb.len, fb.len, pb);*/ + pb = pb + fb.len; + body.len = body.len + fb.len; + } + else { + memcpy(pb, lb->s.s, lb->s.len); pb = pb + lb->s.len; + body.len = body.len + lb->s.len; + /*LM_DBG("copy[%d][%.*s]\n", lb->s.len, lb->s.len, pb - lb->s.len);*/ + } + /*LM_DBG("body[%d][%.*s] expected[%ld]\n", + body.len, body.len, body.s, pb-body.s); */ + if(!replace_body(msg, body)) + { + LM_ERR("Can't replace body\n"); + goto error; + } + msg->msg_flags &= ~FL_BODY_MULTIPART; + ret = 1; + goto clean; + } +error: + ret = -1; +clean: + if(ob.s) pkg_free(ob.s); + if(b.s) pkg_free(b.s); + if(fb.s) pkg_free(fb.s); + if(body.s) pkg_free(body.s); + if(buf.s) pkg_free(buf.s); + while(lb) + { + lb_t = lb->next; + pkg_free(lb); + lb = lb_t; + } + return ret; +} /** builds a request in memory from another sip request. * @@ -1700,6 +1995,9 @@ char * build_req_buf_from_sip_req( struct sip_msg* msg, path_buf.len=0; flags=msg->msg_flags|global_req_flags; + if(check_boundaries(msg, send_info)<0){ + LM_WARN("check_boundaries error\n"); + } /* Calculate message body difference and adjust Content-Length */ body_delta = lumps_len(msg, msg->body_lumps, send_info); if (adjust_clen(msg, body_delta, send_info->proto) < 0) { @@ -1956,8 +2254,6 @@ error00: return 0; } - - char * generate_res_buf_from_sip_res( struct sip_msg* msg, unsigned int *returned_len, unsigned int mode) { diff --git a/msg_translator.h b/msg_translator.h index 4848291..42c16b7 100644 --- a/msg_translator.h +++ b/msg_translator.h @@ -162,4 +162,7 @@ void fix_global_req_flags(str* gname, str* name); int build_sip_msg_from_buf(struct sip_msg *msg, char *buf, int len, unsigned int id); + +/* returns a copy in private memory of the boundary in a multipart body */ +int get_boundary(struct sip_msg* msg, str* boundary); #endif

10 years, 6 months

git:master: core: add str_append helper function

by Victor Seva

Module: sip-router Branch: master Commit: 802771362eee707ecb55c2a907f96d2dbaff620e URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=8027713… Author: Victor Seva <linuxmaniac(a)torreviejawireless.org> Committer: Victor Seva <linuxmaniac(a)torreviejawireless.org> Date: Mon Apr 28 16:20:57 2014 +0200 core: add str_append helper function --- str.c | 45 +++++++++++++++++++++++++++++++++++++++++++++ str.h | 9 +++++++++ 2 files changed, 54 insertions(+), 0 deletions(-) diff --git a/str.c b/str.c new file mode 100644 index 0000000..913dc7b --- /dev/null +++ b/str.c @@ -0,0 +1,45 @@ +/** + * $Id$ + * + * Copyright (C) 2014 Victor Seva <vseva(a)sipwise.com> + * + * This file is part of kamailio, a free SIP server. + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <string.h> +#include "str.h" +#include "mem/mem.h" + +int str_append(str *orig, str *suffix, str *dest) +{ + if(orig == NULL || suffix == NULL || suffix->len == 0 || dest == NULL) + { + LM_ERR("wrong parameters\n"); + return -1; + } + dest->len = orig->len + suffix->len; + dest->s = pkg_malloc(sizeof(char)*dest->len); + if(dest->s==NULL) + { + LOG(L_ERR, "memory allocation failure\n"); + return -1; + } + if(orig->len>0) + { + memcpy(dest->s, orig->s, orig->len); + } + memcpy(dest->s+orig->len, suffix->s, suffix->len); + return 0; +} diff --git a/str.h b/str.h index 1985730..5414be0 100644 --- a/str.h +++ b/str.h @@ -121,4 +121,13 @@ typedef struct _str str; /** @} */ +/** Appends a sufffix + * @param orig is the original string + * @param suffix is the suffix string + * @param dest is the result ::str of appending suffix to orig + * @return 0 if ok -1 if error + * remember to free the dest->s private memory + */ +int str_append(str *orig, str *suffix, str *dest); + #endif

10 years, 6 months

[tracker] Comment added: textops: add functions to convert and append multipart bodies.

by sip-router

THIS IS AN AUTOMATED MESSAGE, DO NOT REPLY. The following task has a new comment added: FS#410 - textops: add functions to convert and append multipart bodies. User who did this - Daniel-Constantin Mierla (miconda) ---------- Patches can be committed. Don't forget to update the readme for textops with the new functions. ---------- More information can be found at the following URL: https://sip-router.org/tracker/index.php?do=details&task_id=410#comment1460 You are receiving this message because you have requested it from the Flyspray bugtracking system. If you did not expect this message or don't want to receive mails in future, you can change your notification settings at the URL shown above.

10 years, 6 months

git:4.1: mtree: replace tree structure even there are no records in db table

by Daniel-Constantin Mierla

Module: sip-router Branch: 4.1 Commit: 47a00936695c46176c3c047e0ab141b4127d08dc URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=47a0093… Author: Daniel-Constantin Mierla <miconda(a)gmail.com> Committer: Daniel-Constantin Mierla <miconda(a)gmail.com> Date: Sun May 18 19:07:38 2014 +0200 mtree: replace tree structure even there are no records in db table - reload didn't replaced old tree if no records in db table - reported by Juha Heinanen (cherry picked from commit c36f326d3c7372b149592d438df75f3d7b0a0233) --- modules/mtree/mtree_mod.c | 8 ++++---- 1 files changed, 4 insertions(+), 4 deletions(-) diff --git a/modules/mtree/mtree_mod.c b/modules/mtree/mtree_mod.c index 4e32dfa..96e6479 100644 --- a/modules/mtree/mtree_mod.c +++ b/modules/mtree/mtree_mod.c @@ -550,8 +550,7 @@ static int mt_load_db(m_tree_t *pt) } else { if(RES_ROW_N(db_res)==0) { - mt_dbf.free_result(db_con, db_res); - return 0; + goto dbreloaded; } } } else { @@ -561,8 +560,7 @@ static int mt_load_db(m_tree_t *pt) { if(ret==0) { - mt_dbf.free_result(db_con, db_res); - return 0; + goto dbreloaded; } else { goto error; } @@ -617,6 +615,8 @@ static int mt_load_db(m_tree_t *pt) break; } } while(RES_ROW_N(db_res)>0); + +dbreloaded: mt_dbf.free_result(db_con, db_res);

10 years, 6 months

[tracker] Task closed: Invalide tel INVITE crashes 4.0.3

by sip-router

THIS IS AN AUTOMATED MESSAGE, DO NOT REPLY. The following task is now closed: FS#348 - Invalide tel INVITE crashes 4.0.3 User who did this - Daniel-Constantin Mierla (miconda) Reason for closing: Fixed Additional comments about closing: A recent patch related to tel uri processing was committed recently (to master, 4.1 and 4.0 branches). Reopen if still an issue. More information can be found at the following URL: https://sip-router.org/tracker/index.php?do=details&task_id=348 You are receiving this message because you have requested it from the Flyspray bugtracking system. If you did not expect this message or don't want to receive mails in future, you can change your notification settings at the URL shown above.

10 years, 6 months

[tracker] Task closed: Out of memory when a request is sent to itself

by sip-router

THIS IS AN AUTOMATED MESSAGE, DO NOT REPLY. The following task is now closed: FS#372 - Out of memory when a request is sent to itself User who did this - Daniel-Constantin Mierla (miconda) Reason for closing: Won't fix Additional comments about closing: Not for maintained version, newer versions have it done. More information can be found at the following URL: https://sip-router.org/tracker/index.php?do=details&task_id=372 You are receiving this message because you have requested it from the Flyspray bugtracking system. If you did not expect this message or don't want to receive mails in future, you can change your notification settings at the URL shown above.

10 years, 6 months

[tracker] Comment added: sdp_keep_codecs_by_name also removes dtmf/telephone-event

by sip-router

THIS IS AN AUTOMATED MESSAGE, DO NOT REPLY. The following task has a new comment added: FS#428 - sdp_keep_codecs_by_name also removes dtmf/telephone-event User who did this - Daniel-Constantin Mierla (miconda) ---------- Have you tried to keep also 'telephone-event', doesn't it work? ---------- More information can be found at the following URL: https://sip-router.org/tracker/index.php?do=details&task_id=428#comment1459 You are receiving this message because you have requested it from the Flyspray bugtracking system. If you did not expect this message or don't want to receive mails in future, you can change your notification settings at the URL shown above.

10 years, 6 months

git:master: mtree: replace tree structure even there are no records in db table

by Daniel-Constantin Mierla

Module: sip-router Branch: master Commit: c36f326d3c7372b149592d438df75f3d7b0a0233 URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=c36f326… Author: Daniel-Constantin Mierla <miconda(a)gmail.com> Committer: Daniel-Constantin Mierla <miconda(a)gmail.com> Date: Sun May 18 19:07:38 2014 +0200 mtree: replace tree structure even there are no records in db table - reload didn't replaced old tree if no records in db table - reported by Juha Heinanen --- modules/mtree/mtree_mod.c | 8 ++++---- 1 files changed, 4 insertions(+), 4 deletions(-) diff --git a/modules/mtree/mtree_mod.c b/modules/mtree/mtree_mod.c index f65f926..9f690e9 100644 --- a/modules/mtree/mtree_mod.c +++ b/modules/mtree/mtree_mod.c @@ -555,8 +555,7 @@ static int mt_load_db(m_tree_t *pt) } else { if(RES_ROW_N(db_res)==0) { - mt_dbf.free_result(db_con, db_res); - return 0; + goto dbreloaded; } } } else { @@ -566,8 +565,7 @@ static int mt_load_db(m_tree_t *pt) { if(ret==0) { - mt_dbf.free_result(db_con, db_res); - return 0; + goto dbreloaded; } else { goto error; } @@ -622,6 +620,8 @@ static int mt_load_db(m_tree_t *pt) break; } } while(RES_ROW_N(db_res)>0); + +dbreloaded: mt_dbf.free_result(db_con, db_res);

10 years, 6 months

[tracker] Task opened: dialplan: allow match/subst rules with variables (Attachment added)

by sip-router

THIS IS AN AUTOMATED MESSAGE, DO NOT REPLY. A new Flyspray task has been opened. Details are below. User who did this - Víctor Seva (linuxmaniac) Attached to Project - sip-router Summary - dialplan: allow match/subst rules with variables Task Type - Improvement Category - Module Status - New Assigned To - Víctor Seva Operating System - All Severity - Low Priority - Normal Reported Version - Development Due in Version - Undecided Due Date - Undecided Details - This allows the use of pv's at match and subst rules on dialplan module. One or more files have been attached. More information can be found at the following URL: https://sip-router.org/tracker/index.php?do=details&task_id=429 You are receiving this message because you have requested it from the Flyspray bugtracking system. If you did not expect this message or don't want to receive mails in future, you can change your notification settings at the URL shown above.

10 years, 6 months

[tracker] Comment added: dialplan: allow match/subst rules with variables

by sip-router

THIS IS AN AUTOMATED MESSAGE, DO NOT REPLY. The following task has a new comment added: FS#429 - dialplan: allow match/subst rules with variables User who did this - Víctor Seva (linuxmaniac) ---------- The idea is to detect in the load process if match/subst rule contain pvs and flag it accordingly (pv_flags). Then in the child_init, every process builds a similar structure but in private memory and only with the flagged rules, it uses pv_parse_format to save the match_elem/subst_elem list in the structure. So, later, if the rule flagged is accessed in translate() the match/subst regex gets build with the actual value of the match/subst expression. In order to detect a reload, a counter revision gets incremented. Each process will rebuild its private info if its private rev do not match the shared one. ---------- More information can be found at the following URL: https://sip-router.org/tracker/index.php?do=details&task_id=429#comment1458 You are receiving this message because you have requested it from the Flyspray bugtracking system. If you did not expect this message or don't want to receive mails in future, you can change your notification settings at the URL shown above.

10 years, 6 months

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sr-dev May 2014