sr-dev January 2011

sr-dev@lists.kamailio.org

14 participants
227 discussions

git:master: rls(k): module polishing
by Daniel-Constantin Mierla 05 Jan '11

05 Jan '11

Module: sip-router Branch: master Commit: 8d9f412ab0b8cdc19a00e8549722326f4b368cb4 URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=8d9f412… Author: Daniel-Constantin Mierla <miconda(a)gmail.com> Committer: Daniel-Constantin Mierla <miconda(a)gmail.com> Date: Wed Jan 5 19:52:27 2011 +0100 rls(k): module polishing - optimiezed error checking for broken sip requests - internal naming changes to avoid object conflicts - query for rls services documents (reported by Klaus Darilion) --- modules_k/rls/rls.c | 65 +++--- modules_k/rls/rls.h | 4 +- modules_k/rls/subscribe.c | 568 ++++++++++++++++++++++++--------------------- 3 files changed, 335 insertions(+), 302 deletions(-) Diff: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commitdiff;h=8d9…

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git:master: rls(k): control loading db subs
by Daniel-Constantin Mierla 05 Jan '11

05 Jan '11

Module: sip-router Branch: master Commit: 25d8ec8b5962b3193b37186b06be5683e4a22fda URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=25d8ec8… Author: Daniel-Constantin Mierla <miconda(a)gmail.com> Committer: Daniel-Constantin Mierla <miconda(a)gmail.com> Date: Wed Jan 5 15:24:02 2011 +0100 rls(k): control loading db subs - parameter that can be used to control the db load from config --- modules_k/rls/rls.c | 11 ++++++++--- 1 files changed, 8 insertions(+), 3 deletions(-) diff --git a/modules_k/rls/rls.c b/modules_k/rls/rls.c index b3fe8f4..7f77425 100644 --- a/modules_k/rls/rls.c +++ b/modules_k/rls/rls.c @@ -103,6 +103,7 @@ extract_sdialog_info_t pres_extract_sdialog_info; int rls_events= EVENT_PRESENCE; int to_presence_code= 1; int rls_max_expires= 7200; +int rls_reload_db_subs = 0; /* functions imported from xcap_client module */ xcapGetNewDoc_t xcap_GetNewDoc= 0; @@ -186,6 +187,7 @@ static param_export_t params[]={ /*address and port(default: 80):"http://192.168.2.132:8000/xcap-root"*/ { "rls_event", STR_PARAM|USE_FUNC_PARAM,(void*)add_rls_event}, { "outbound_proxy", STR_PARAM, &outbound_proxy.s }, + { "reload_db_subs", INT_PARAM, &rls_reload_db_subs }, {0, 0, 0 } }; @@ -356,10 +358,13 @@ static int mod_init(void) LM_ERR("while creating new hash table\n"); return -1; } - if(rls_restore_db_subs()< 0) + if(rls_reload_db_subs!=0) { - LM_ERR("while restoring rl watchers table\n"); - return -1; + if(rls_restore_db_subs()< 0) + { + LM_ERR("while restoring rl watchers table\n"); + return -1; + } } if(rls_db)

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git:master: rls(k): fixed double-quotes wrong position
by Daniel-Constantin Mierla 05 Jan '11

05 Jan '11

Module: sip-router Branch: master Commit: 7e01915b757da740d7fff31ba1a25c4aa5a96908 URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=7e01915… Author: Daniel-Constantin Mierla <miconda(a)gmail.com> Committer: Daniel-Constantin Mierla <miconda(a)gmail.com> Date: Wed Jan 5 15:11:39 2011 +0100 rls(k): fixed double-quotes wrong position - reported by Klaus Darilion --- modules_k/rls/notify.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --git a/modules_k/rls/notify.c b/modules_k/rls/notify.c index 9d22036..9b83f21 100644 --- a/modules_k/rls/notify.c +++ b/modules_k/rls/notify.c @@ -602,9 +602,10 @@ str* rls_notify_extra_hdr(subs_t* subs, char* start_cid, char* boundary_string) if(start_cid && boundary_string) { str_hdr->len+= sprintf(str_hdr->s+str_hdr->len, - "Content-Type: \"multipart/related;type=\"application/rlmi+xml\""); + "Content-Type: multipart/related;type=\"application/rlmi+xml\""); str_hdr->len+= sprintf(str_hdr->s+str_hdr->len, - ";start= <%s>;boundary=%s\r\n", start_cid, boundary_string); + ";start=\"<%s>\";boundary=\"%s\"\r\n", + start_cid, boundary_string); } if(str_hdr->len> RLS_HDR_LEN) {

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git:master: cfg framework: cfg_group_inst_exists() added
by Miklos Tirpak 05 Jan '11

05 Jan '11

Module: sip-router Branch: master Commit: fc444f6f95e373d93a8698a09571a9e67939b632 URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=fc444f6… Author: Miklos Tirpak <miklos(a)iptel.org> Committer: Miklos Tirpak <miklos(a)iptel.org> Date: Tue Jan 4 16:21:04 2011 +0100 cfg framework: cfg_group_inst_exists() added The function checkes whether or not a group instance exists. --- cfg/cfg_ctx.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ cfg/cfg_ctx.h | 7 +++++++ 2 files changed, 57 insertions(+), 0 deletions(-) diff --git a/cfg/cfg_ctx.c b/cfg/cfg_ctx.c index 53d881a..b90201a 100644 --- a/cfg/cfg_ctx.c +++ b/cfg/cfg_ctx.c @@ -1648,6 +1648,56 @@ error: return -1; } +/* Check the existance of a group instance. + * return value: + * 1: exists + * 0: does not exist + */ +int cfg_group_inst_exists(cfg_ctx_t *ctx, str *group_name, unsigned int group_id) +{ + cfg_group_t *group; + cfg_add_var_t *add_var; + int found; + + /* verify the context even if we do not need it now + to make sure that a cfg driver has called the function + (very very weak security) */ + if (!ctx) { + LOG(L_ERR, "ERROR: cfg_group_inst_exists(): context is undefined\n"); + return 0; + } + + if (!(group = cfg_lookup_group(group_name->s, group_name->len))) { + LOG(L_ERR, "ERROR: cfg_group_inst_exists(): group not found\n"); + return 0; + } + + if (!cfg_shmized) { + /* group instances are stored in the additional variable list + * before forking */ + found = 0; + for ( add_var = group->add_var; + add_var; + add_var = add_var->next + ) + if (add_var->group_id == group_id) { + found = 1; + break; + } + + } else { + /* make sure that nobody else replaces the global config meantime */ + CFG_WRITER_LOCK(); + found = (cfg_find_group(CFG_GROUP_META(*cfg_global, group), + group->size, + group_id) + != NULL); + CFG_WRITER_UNLOCK(); + } + + return found; +} + /* Apply the changes to a group instance as long as the additional variable * belongs to the specified group_id. *add_var_p is moved to the next additional * variable, and all the consumed variables are freed. diff --git a/cfg/cfg_ctx.h b/cfg/cfg_ctx.h index 359f590..33b9b18 100644 --- a/cfg/cfg_ctx.h +++ b/cfg/cfg_ctx.h @@ -198,6 +198,13 @@ int cfg_add_group_inst(cfg_ctx_t *ctx, str *group_name, unsigned int group_id); /* Delete an instance of a group */ int cfg_del_group_inst(cfg_ctx_t *ctx, str *group_name, unsigned int group_id); +/* Check the existance of a group instance. + * return value: + * 1: exists + * 0: does not exist + */ +int cfg_group_inst_exists(cfg_ctx_t *ctx, str *group_name, unsigned int group_id); + /* Apply the changes to a group instance as long as the additional variable * belongs to the specified group_id. *add_var_p is moved to the next additional * variable, and all the consumed variables are freed.

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git:master: cfg framework: cfg_set_* works with dynamic group even before forking
by Miklos Tirpak 05 Jan '11

05 Jan '11

Module: sip-router Branch: master Commit: ca88d95652abd911f7b8d2525c43b560eb571608 URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=ca88d95… Author: Miklos Tirpak <miklos(a)iptel.org> Committer: Miklos Tirpak <miklos(a)iptel.org> Date: Tue Jan 4 15:47:14 2011 +0100 cfg framework: cfg_set_* works with dynamic group even before forking Added support for the cfg_set_* functions for dynamic groups (i.e. variables declared from the script) before forking. --- cfg/cfg_ctx.c | 26 ++++++++++++----- cfg/cfg_ctx.h | 6 +++- cfg/cfg_script.c | 79 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ cfg/cfg_script.h | 9 ++++++ 4 files changed, 111 insertions(+), 9 deletions(-) diff --git a/cfg/cfg_ctx.c b/cfg/cfg_ctx.c index 5fe2dc6..53d881a 100644 --- a/cfg/cfg_ctx.c +++ b/cfg/cfg_ctx.c @@ -30,6 +30,7 @@ #include "../ut.h" #include "cfg_struct.h" +#include "cfg_script.h" #include "cfg_ctx.h" @@ -231,13 +232,13 @@ error: return -1; } -#define convert_val_cleanup() \ - do { \ - if (temp_string) { \ - pkg_free(temp_string); \ - temp_string = NULL; \ - } \ - } while(0) +void convert_val_cleanup(void) +{ + if (temp_string) { + pkg_free(temp_string); + temp_string = NULL; + } +} /* returns the size of the variable */ static int cfg_var_size(cfg_mapping_t *var) @@ -339,8 +340,17 @@ int cfg_set_now(cfg_ctx_t *ctx, str *group_name, unsigned int *group_id, str *va } /* look-up the group and the variable */ - if (cfg_lookup_var(group_name, var_name, &group, &var)) + if (cfg_lookup_var(group_name, var_name, &group, &var)) { + if (!cfg_shmized) { + /* The group may be dynamic which is not yet ready + * before forking */ + if ((group = cfg_lookup_group(group_name->s, group_name->len)) + && (group->dynamic == CFG_GROUP_DYNAMIC) + ) + return cfg_set_script_var(group, var_name, val, val_type); + } return 1; + } /* check whether the variable is read-only */ if (var->def->type & CFG_READONLY) { diff --git a/cfg/cfg_ctx.h b/cfg/cfg_ctx.h index 481c7ff..359f590 100644 --- a/cfg/cfg_ctx.h +++ b/cfg/cfg_ctx.h @@ -122,10 +122,14 @@ int cfg_help(cfg_ctx_t *ctx, str *group_name, str *var_name, /*! \brief notify the drivers about the new config definition */ void cfg_notify_drivers(char *group_name, int group_name_len, cfg_def_t *def); -/*! \brief convert the value to the requested type */ +/*! \brief convert the value to the requested type. + * Do not forget the call convert_val_cleaup afterwards. */ int convert_val(unsigned int val_type, void *val, unsigned int var_type, void **new_val); +/*! \brief cleanup function for convert_val() */ +void convert_val_cleanup(void); + /*! \brief initialize the handle for cfg_get_group_next() */ #define cfg_get_group_init(handle) \ (*(handle)) = (void *)cfg_group diff --git a/cfg/cfg_script.c b/cfg/cfg_script.c index 58b6cd9..5106dd9 100644 --- a/cfg/cfg_script.c +++ b/cfg/cfg_script.c @@ -31,6 +31,7 @@ #include "../ut.h" #include "cfg_struct.h" #include "cfg.h" +#include "cfg_ctx.h" #include "cfg_script.h" /* allocates memory for a new config script variable @@ -145,6 +146,84 @@ error: return NULL; } +/* Rewrite the value of an already declared script variable before forking. + * Return value: + * 0: success + * -1: error + * 1: variable not found + */ +int cfg_set_script_var(cfg_group_t *group, str *var_name, + void *val, unsigned int val_type) +{ + cfg_script_var_t *var; + void *v; + str s; + + if (cfg_shmized || (group->dynamic != CFG_GROUP_DYNAMIC)) { + LOG(L_ERR, "BUG: cfg_set_script_var(): Not a dynamic group before forking\n"); + return -1; + } + + for ( var = (cfg_script_var_t *)(void *)group->vars; + var; + var = var->next + ) { + if ((var->name_len == var_name->len) + && (memcmp(var->name, var_name->s, var_name->len) == 0) + ) { + switch (var->type) { + case CFG_VAR_INT: + if (convert_val(val_type, val, CFG_INPUT_INT, &v)) + goto error; + if ((var->min || var->max) + && ((var->min > (int)(long)v) || (var->max < (int)(long)v)) + ) { + LOG(L_ERR, "ERROR: cfg_set_script_var(): integer value is out of range\n"); + goto error; + } + var->val.i = (int)(long)v; + break; + + case CFG_VAR_STR: + if (convert_val(val_type, val, CFG_INPUT_STR, &v)) + goto error; + if (((str *)v)->s) { + s.len = ((str *)v)->len; + s.s = pkg_malloc(sizeof(char) * (s.len + 1)); + if (!s.s) { + LOG(L_ERR, "ERROR: cfg_set_script_var(): not enough memory\n"); + goto error; + } + memcpy(s.s, ((str *)v)->s, s.len); + s.s[s.len] = '\0'; + } else { + s.s = NULL; + s.len = 0; + } + if (var->val.s.s) + pkg_free(var->val.s.s); + var->val.s = s; + break; + + default: + LOG(L_ERR, "ERROR: cfg_set_script_var(): unsupported variable type\n"); + goto error; + } + + convert_val_cleanup(); + return 0; + } + } + + return 1; + +error: + LOG(L_ERR, "ERROR: cfg_set_script_var(): failed to set the script variable: %.*s.%.*s\n", + group->name_len, group->name, + var_name->len, var_name->s); + return -1; +} + /* fix-up the dynamically declared group: * - allocate memory for the arrays * - set the values within the memory block diff --git a/cfg/cfg_script.h b/cfg/cfg_script.h index 1c22bdb..8f4aeaa 100644 --- a/cfg/cfg_script.h +++ b/cfg/cfg_script.h @@ -53,6 +53,15 @@ typedef struct _cfg_script_var { cfg_script_var_t *new_cfg_script_var(char *gname, char *vname, unsigned int type, char *descr); +/* Rewrite the value of an already declared script variable before forking. + * Return value: + * 0: success + * -1: error + * 1: variable not found + */ +int cfg_set_script_var(cfg_group_t *group, str *var_name, + void *val, unsigned int val_type); + /* fix-up the dynamically declared group */ int cfg_script_fixup(cfg_group_t *group, unsigned char *block);

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git:master: cfg framework: group instance values can be deleted
by Miklos Tirpak 05 Jan '11

05 Jan '11

Module: sip-router Branch: master Commit: 7d7264e23619fddcf0fb91a4868631b07af6494d URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=7d7264e… Author: Miklos Tirpak <miklos(a)iptel.org> Committer: Miklos Tirpak <miklos(a)iptel.org> Date: Wed Jan 5 14:57:14 2011 +0100 cfg framework: group instance values can be deleted Added support for deleting a single value from a group instance. The value is reset to the default value in this case, it follows the changes of the default value. Related functions: - cfg_del_now() - cfg_del_delayed() --- cfg/cfg.h | 1 + cfg/cfg_ctx.c | 247 ++++++++++++++++++++++++++++++++++++++---------------- cfg/cfg_ctx.h | 9 ++ cfg/cfg_struct.h | 5 + 4 files changed, 188 insertions(+), 74 deletions(-) Diff: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commitdiff;h=7d7…

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git:master: cfg_rpc: RPC commands for value deletion
by Miklos Tirpak 05 Jan '11

05 Jan '11

Module: sip-router Branch: master Commit: cd29cc777996b8100680fb8ea96eb302e21f8c4c URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=cd29cc7… Author: Miklos Tirpak <miklos(a)iptel.org> Committer: Miklos Tirpak <miklos(a)iptel.org> Date: Wed Jan 5 15:10:06 2011 +0100 cfg_rpc: RPC commands for value deletion Two RPC commands added for deleting a configuration value from a group instance: cfg.del group[id] var cfg.del_delayed group[id] var --- modules/cfg_rpc/README | 11 +++++++++ modules/cfg_rpc/cfg_rpc.c | 50 +++++++++++++++++++++++++++++++++++++++++++ modules/cfg_rpc/doc/rpc.xml | 22 +++++++++++++++++++ 3 files changed, 83 insertions(+), 0 deletions(-) diff --git a/modules/cfg_rpc/README b/modules/cfg_rpc/README index 3bec8f0..9c71c66 100644 --- a/modules/cfg_rpc/README +++ b/modules/cfg_rpc/README @@ -35,6 +35,11 @@ Miklos Tirpak The function accepts three parameters: group name, variable name, int/string value. The group name can optionally contain the group instance id, for example foo[5]. + * cfg.del - Delete the value of a configuration variable from a group + instance and commit the change immediately. The value is reset to + the default value and it follows the changes of that. The function + accepts two parameters: group name, variable name. The group name + must contain the group instance id, for example foo[5]. * cfg.set_delayed_int - Prepare the change of a configuration variable, but does not commit the new value yet. The function accepts three parameters: group name, variable name, integer value. @@ -51,6 +56,12 @@ Miklos Tirpak type of the value provided. The function accepts three parameters: group name, variable name, int/string value. The group name can optionally contain the group instance id, for example foo[5]. + * cfg.del_delayed - Prepare the deletion of the value of a + configuration variable from a group instance, but does not commit + the change yet. The value is reset to the default value and it + follows the changes of that. The function accepts two parameters: + group name, variable name. The group name must contain the group + instance id, for example foo[5]. * cfg.commit - Commit the previously prepared configuration changes. The function does not have any parameters. * cfg.rollback - Drop the prepared configuration changes. The diff --git a/modules/cfg_rpc/cfg_rpc.c b/modules/cfg_rpc/cfg_rpc.c index 23cba03..31cc901 100644 --- a/modules/cfg_rpc/cfg_rpc.c +++ b/modules/cfg_rpc/cfg_rpc.c @@ -156,6 +156,30 @@ static void rpc_set(rpc_t* rpc, void* c) } } +static const char* rpc_del_now_doc[2] = { + "Delete the value of a configuration variable from a group instance and commit the change immediately", + 0 +}; + +static void rpc_del(rpc_t* rpc, void* c) +{ + str group, var; + unsigned int *group_id; + + if (rpc->scan(c, "SS", &group, &var) < 2) + return; + + if (get_group_id(&group, &group_id) || !group_id) { + rpc->fault(c, 400, "Wrong group syntax. Use \"group[id]\""); + return; + } + + if (cfg_del_now(ctx, &group, group_id, &var)) { + rpc->fault(c, 400, "Failed to delete the value"); + return; + } +} + static const char* rpc_set_delayed_doc[2] = { "Prepare the change of a configuration variable, but does not commit the new value yet", 0 @@ -229,6 +253,30 @@ static void rpc_set_delayed(rpc_t* rpc, void* c) } } +static const char* rpc_del_delayed_doc[2] = { + "Prepare the deletion of the value of a configuration variable from a group instance, but does not commit the change yet", + 0 +}; + +static void rpc_del_delayed(rpc_t* rpc, void* c) +{ + str group, var; + unsigned int *group_id; + + if (rpc->scan(c, "SS", &group, &var) < 2) + return; + + if (get_group_id(&group, &group_id) || !group_id) { + rpc->fault(c, 400, "Wrong group syntax. Use \"group[id]\""); + return; + } + + if (cfg_del_delayed(ctx, &group, group_id, &var)) { + rpc->fault(c, 400, "Failed to delete the value"); + return; + } +} + static const char* rpc_commit_doc[2] = { "Commit the previously prepared configuration changes", 0 @@ -488,9 +536,11 @@ static rpc_export_t rpc_calls[] = { {"cfg.set", rpc_set, rpc_set_now_doc, 0}, {"cfg.set_now_int", rpc_set_now_int, rpc_set_now_doc, 0}, {"cfg.set_now_string", rpc_set_now_string, rpc_set_now_doc, 0}, + {"cfg.del", rpc_del, rpc_del_now_doc, 0}, {"cfg.set_delayed", rpc_set_delayed, rpc_set_delayed_doc, 0}, {"cfg.set_delayed_int", rpc_set_delayed_int, rpc_set_delayed_doc, 0}, {"cfg.set_delayed_string", rpc_set_delayed_string, rpc_set_delayed_doc, 0}, + {"cfg.del_delayed", rpc_del_delayed, rpc_del_delayed_doc, 0}, {"cfg.commit", rpc_commit, rpc_commit_doc, 0}, {"cfg.rollback", rpc_rollback, rpc_rollback_doc, 0}, {"cfg.get", rpc_get, rpc_get_doc, 0}, diff --git a/modules/cfg_rpc/doc/rpc.xml b/modules/cfg_rpc/doc/rpc.xml index 4491184..ae3c548 100644 --- a/modules/cfg_rpc/doc/rpc.xml +++ b/modules/cfg_rpc/doc/rpc.xml @@ -41,6 +41,17 @@ </listitem> <listitem> <para> + <emphasis>cfg.del</emphasis> - Delete the value of + a configuration variable from a group instance and commit the change immediately. + The value is reset to the default value and it follows the changes + of that. + The function accepts two parameters: group name, variable + name. The group name must contain the + group instance id, for example foo[5]. + </para> + </listitem> + <listitem> + <para> <emphasis>cfg.set_delayed_int</emphasis> - Prepare the change of a configuration variable, but does not commit the new value yet. The function accepts three parameters: group name, variable @@ -70,6 +81,17 @@ </listitem> <listitem> <para> + <emphasis>cfg.del_delayed</emphasis> - Prepare the deletion of the value of + a configuration variable from a group instance, but does not commit the change yet. + The value is reset to the default value and it follows the changes + of that. + The function accepts two parameters: group name, variable + name. The group name must contain the + group instance id, for example foo[5]. + </para> + </listitem> + <listitem> + <para> <emphasis>cfg.commit</emphasis> - Commit the previously prepared configuration changes. The function does not have any parameters.

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git:master: bit test: bit_test_and_reset() added
by Miklos Tirpak 05 Jan '11

05 Jan '11

Module: sip-router Branch: master Commit: 628e975416ba291f7158520e5cc92d0b0cb6826e URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=628e975… Author: Miklos Tirpak <miklos(a)iptel.org> Committer: Miklos Tirpak <miklos(a)iptel.org> Date: Wed Jan 5 11:40:20 2011 +0100 bit test: bit_test_and_reset() added The function returns the bit found at offset position in a bitstring and resets the bit to 0. --- bit_test.h | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 42 insertions(+), 0 deletions(-) diff --git a/bit_test.h b/bit_test.h index 534e502..9f83215 100644 --- a/bit_test.h +++ b/bit_test.h @@ -18,6 +18,7 @@ * History * ------- * 2010-04-26 Initial version (Miklos) + * 2011-01-05 bit_test_and_reset added (Miklos) */ /* Bit test functions: @@ -30,6 +31,11 @@ * in a bitstring pointed by addr, and sets * the bit at the given offset. * + * - int bit_test_and_reset(int offset, unsigned int *addr) + * Returns the bit found at offset position + * in a bitstring pointed by addr, and resets + * the bit at the given offset. + * * Note that 0 <= offset <= 128, Make sure that addr points to * a large enough memory area. */ @@ -86,6 +92,24 @@ static inline int bit_test_and_set(int offset, unsigned int *addr) return (int)v; } +/* Returns the bit found at offset position in the bitstring + * pointed by addr and resets it to 0. + * Note that the CPU can access 4 bytes starting from addr, + * hence 0 <= offset < 128 holds. Make sure that addr points + * to a memory area that is large enough. + */ +static inline int bit_test_and_reset(int offset, unsigned int *addr) +{ + unsigned char v; + + asm volatile( + " btr %2, %1 \n\t" + " setc %0 \n\t" + : "=qm" (v) : "m" (*addr), "r" (offset) + ); + return (int)v; +} + #else /* BIT_TEST_ASM */ /* Returns the bit found at offset position in the bitstring @@ -116,6 +140,24 @@ static inline int bit_test_and_set(int offset, unsigned int *addr) return res; } +/* Returns the bit found at offset position in the bitstring + * pointed by addr and resets it to 0. + * Note that offset can be grater than 32, make sure that addr points + * to a memory area that is large enough. + */ +static inline int bit_test_and_reset(int offset, unsigned int *addr) +{ + unsigned int *i; + int mask, res; + + i = addr + offset/32; + mask = 1U << (offset % 32); + res = ((*i) & mask) ? 1 : 0; + (*i) &= ~mask; + + return res; +} + #endif /* BIT_TEST_ASM */ #endif /* #ifndef _BIT_TEST_H */

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git:master: cfg framework: mem leak in del_group_inst is corrected
by Miklos Tirpak 05 Jan '11

05 Jan '11

Module: sip-router Branch: master Commit: 47daa2e1174376fa94b858ea9473b868161e7341 URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=47daa2e… Author: Miklos Tirpak <miklos(a)iptel.org> Committer: Miklos Tirpak <miklos(a)iptel.org> Date: Tue Jan 4 11:14:30 2011 +0100 cfg framework: mem leak in del_group_inst is corrected cfg_del_group_inst() did not free the strings that were set within the group instance. When the group instance was deleted, the strings left allocated. --- cfg/cfg_ctx.c | 36 +++++++++++++++++++++++++++++++++--- 1 files changed, 33 insertions(+), 3 deletions(-) diff --git a/cfg/cfg_ctx.c b/cfg/cfg_ctx.c index b23925c..5fe2dc6 100644 --- a/cfg/cfg_ctx.c +++ b/cfg/cfg_ctx.c @@ -1521,6 +1521,8 @@ int cfg_del_group_inst(cfg_ctx_t *ctx, str *group_name, unsigned int group_id) cfg_block_t *block = NULL; void **replaced = NULL; cfg_group_inst_t *new_array = NULL, *group_inst; + cfg_mapping_t *var; + int i, num; /* verify the context even if we do not need it now to make sure that a cfg driver has called the function @@ -1571,13 +1573,41 @@ int cfg_del_group_inst(cfg_ctx_t *ctx, str *group_name, unsigned int group_id) /* prepare the array of the replaced strings, and replaced group instances, they will be freed when the old block is freed */ - replaced = (void **)shm_malloc(sizeof(void *) * 2); + + /* count the number of strings that has to be freed */ + num = 0; + for (i = 0; i < group->num; i++) { + var = &group->mapping[i]; + if (CFG_VAR_TEST(group_inst, var) + && ((CFG_VAR_TYPE(var) == CFG_VAR_STRING) || (CFG_VAR_TYPE(var) == CFG_VAR_STR)) + && (*(char **)(group_inst->vars + var->offset) != NULL) + ) + num++; + } + + replaced = (void **)shm_malloc(sizeof(void *) * (num + 2)); if (!replaced) { LOG(L_ERR, "ERROR: cfg_del_group_inst(): not enough shm memory\n"); goto error; } - replaced[0] = CFG_GROUP_META(*cfg_global, group)->array; - replaced[1] = NULL; + + if (num) { + /* There was at least one string to free, go though the list again */ + num = 0; + for (i = 0; i < group->num; i++) { + var = &group->mapping[i]; + if (CFG_VAR_TEST(group_inst, var) + && ((CFG_VAR_TYPE(var) == CFG_VAR_STRING) || (CFG_VAR_TYPE(var) == CFG_VAR_STR)) + && (*(char **)(group_inst->vars + var->offset) != NULL) + ) { + replaced[num] = *(char **)(group_inst->vars + var->offset); + num++; + } + } + } + + replaced[num] = CFG_GROUP_META(*cfg_global, group)->array; + replaced[num+1] = NULL; } /* replace the global config with the new one */ cfg_install_global(block, replaced, NULL, NULL);

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git:master: cfg framework: crash when adding a new group instance
by Miklos Tirpak 05 Jan '11

05 Jan '11

Module: sip-router Branch: master Commit: 106ab4610b48140a5a5e99a520b53a12bd0a2478 URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=106ab46… Author: Miklos Tirpak <miklos(a)iptel.org> Committer: Miklos Tirpak <miklos(a)iptel.org> Date: Tue Jan 4 11:28:53 2011 +0100 cfg framework: crash when adding a new group instance A log message trying to print a NULL variable name caused a crash when a new group instance was added before forking without any variable. --- cfg/cfg_struct.c | 11 ++++++++++- 1 files changed, 10 insertions(+), 1 deletions(-) diff --git a/cfg/cfg_struct.c b/cfg/cfg_struct.c index 1cf1848..6e93379 100644 --- a/cfg/cfg_struct.c +++ b/cfg/cfg_struct.c @@ -876,10 +876,19 @@ int new_add_var(str *group_name, unsigned int group_id, str *var_name, cfg_add_var_t *add_var = NULL, **add_var_p; int len; - LOG(L_DBG, "DEBUG: new_add_var(): declaring a new variable instance %.*s[%u].%.*s\n", + if (type && (!var_name || !val)) { + LOG(L_ERR, "ERROR: new_add_var(): Missing variable/value specification\n"); + goto error; + } + if (type) + LOG(L_DBG, "DEBUG: new_add_var(): declaring a new variable instance %.*s[%u].%.*s\n", group_name->len, group_name->s, group_id, var_name->len, var_name->s); + else + LOG(L_DBG, "DEBUG: new_add_var(): declaring a new group instance %.*s[%u]\n", + group_name->len, group_name->s, + group_id); if (cfg_shmized) { LOG(L_ERR, "ERROR: new_add_var(): too late, the configuration has already been shmized\n");

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sr-dev January 2011