provision.c File Reference

IAX Provisioning Protocol. More...

#include "asterisk.h"
#include <netdb.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <sys/socket.h>
#include "asterisk/config.h"
#include "asterisk/cli.h"
#include "asterisk/lock.h"
#include "asterisk/frame.h"
#include "asterisk/md5.h"
#include "asterisk/astdb.h"
#include "asterisk/utils.h"
#include "asterisk/acl.h"
#include "asterisk/format_cache.h"
#include "asterisk/format_compatibility.h"
#include "include/iax2.h"
#include "include/provision.h"
#include "include/parser.h"

Include dependency graph for provision.c:

Go to the source code of this file.

Data Structures
struct	iax_flag
struct	iax_template
struct	templates

Functions
static int	iax_process_template (struct ast_config *cfg, char *s, char *def)
char *	iax_prov_complete_template (const char *line, const char *word, int pos, int state)
char *	iax_provflags2str (char *buf, int buflen, unsigned int flags)
int	iax_provision_build (struct iax_ie_data *provdata, unsigned int *signature, const char *template, int force)
static void	iax_provision_free_templates (int dead)
static int	iax_provision_init (void)
int	iax_provision_reload (int reload)
int	iax_provision_unload (void)
int	iax_provision_version (unsigned int *version, const char *template, int force)
static const char *	iax_server (unsigned int addr)
static char *	iax_show_provisioning (struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
static unsigned int	iax_str2flags (const char *buf)
static void	iax_template_copy (struct iax_template *dst, struct iax_template *src)
static struct iax_template *	iax_template_find (const char *s, int allowdead)
static int	iax_template_parse (struct iax_template *cur, struct ast_config *cfg, const char *s, const char *def)
static const char *	ifthere (const char *s)
static unsigned int	prov_ver_calc (struct iax_ie_data *provdata)

Variables
static struct ast_cli_entry	cli_iax2_provision []
static struct iax_flag	iax_flags []
static int	provinit = 0
static ast_mutex_t	provlock = AST_MUTEX_INIT_VALUE
static struct templates	templates = AST_LIST_HEAD_NOLOCK_INIT_VALUE

Detailed Description

IAX Provisioning Protocol.

Author

Mark Spencer marks.nosp@m.ter@.nosp@m.digiu.nosp@m.m.co.nosp@m.m

Definition in file provision.c.

Function Documentation

iax_process_template()

static int iax_process_template ( struct ast_config *  cfg, char *  s, char *  def  )

static

Definition at line 384 of file provision.c.

{
    /* Find an already existing one if there */
    struct iax_template *cur;
    int mallocd = 0;
 
    cur = iax_template_find(s, 1 /* allow dead */);
    if (!cur) {
        mallocd = 1;
        cur = ast_calloc(1, sizeof(*cur));
        if (!cur) {
            ast_log(LOG_WARNING, "Out of memory!\n");
            return -1;
        }
        /* Initialize entry */
        ast_copy_string(cur->name, s, sizeof(cur->name));
        cur->dead = 1;
    }
    if (!iax_template_parse(cur, cfg, s, def))
        cur->dead = 0;
 
    /* Link if we're mallocd */
    if (mallocd) {
        ast_mutex_lock(&provlock);
        AST_LIST_INSERT_HEAD(&templates, cur, list);
        ast_mutex_unlock(&provlock);
    }
    return 0;
}

References ast_calloc, ast_copy_string(), AST_LIST_INSERT_HEAD, ast_log, ast_mutex_lock, ast_mutex_unlock, iax_template::dead, iax_template_find(), iax_template_parse(), iax_template::list, LOG_WARNING, iax_template::name, and provlock.

Referenced by iax_provision_reload().

iax_prov_complete_template()

char * iax_prov_complete_template	(	const char *	line,
		const char *	word,
		int	pos,
		int	state
	)

Definition at line 179 of file provision.c.

{
    struct iax_template *c;
    int which=0;
    char *ret = NULL;
    int wordlen = strlen(word);
 
    if (pos == 3) {
        ast_mutex_lock(&provlock);
        AST_LIST_TRAVERSE(&templates, c, list) {
            if (!strncasecmp(word, c->name, wordlen) && ++which > state) {
                ret = ast_strdup(c->name);
                break;
            }
        }
        ast_mutex_unlock(&provlock);
    }
    return ret;
}

References AST_LIST_TRAVERSE, ast_mutex_lock, ast_mutex_unlock, ast_strdup, c, iax_template::list, test_val::name, NULL, and provlock.

Referenced by handle_cli_iax2_provision(), and iax_show_provisioning().

iax_provflags2str()

char * iax_provflags2str	(	char *	buf,
		int	buflen,
		unsigned int	flags
	)

Definition at line 90 of file provision.c.

{
    int x;
 
    if (!buf || buflen < 1)
        return NULL;
 
    buf[0] = '\0';
 
    for (x = 0; x < ARRAY_LEN(iax_flags); x++) {
        if (flags & iax_flags[x].value){
            strncat(buf, iax_flags[x].name, buflen - strlen(buf) - 1);
            strncat(buf, ",", buflen - strlen(buf) - 1);
        }
    }
 
    if (!ast_strlen_zero(buf))
        buf[strlen(buf) - 1] = '\0';
    else
        strncpy(buf, "none", buflen - 1);
 
    return buf;
}

References ARRAY_LEN, ast_strlen_zero(), buf, iax_flags, name, NULL, and value.

Referenced by dump_prov_flags(), and iax_show_provisioning().

iax_provision_build()

int iax_provision_build	(	struct iax_ie_data *	provdata,
		unsigned int *	signature,
		const char *	template,
		int	force
	)

Definition at line 209 of file provision.c.

{
    struct iax_template *cur;
    unsigned int sig;
    char tmp[40];
    memset(provdata, 0, sizeof(*provdata));
    ast_mutex_lock(&provlock);
    cur = iax_template_find(template, 1);
    /* If no match, try searching for '*' */
    if (!cur)
        cur = iax_template_find("*", 1);
    if (cur) {
        /* found it -- add information elements as appropriate */
        if (force || strlen(cur->user))
            iax_ie_append_str(provdata, PROV_IE_USER, cur->user);
        if (force || strlen(cur->pass))
            iax_ie_append_str(provdata, PROV_IE_PASS, cur->pass);
        if (force || strlen(cur->lang))
            iax_ie_append_str(provdata, PROV_IE_LANG, cur->lang);
        if (force || cur->port)
            iax_ie_append_short(provdata, PROV_IE_PORTNO, cur->port);
        if (force || cur->server)
            iax_ie_append_int(provdata, PROV_IE_SERVERIP, cur->server);
        if (force || cur->serverport)
            iax_ie_append_short(provdata, PROV_IE_SERVERPORT, cur->serverport);
        if (force || cur->altserver)
            iax_ie_append_int(provdata, PROV_IE_ALTSERVER, cur->altserver);
        if (force || cur->flags)
            iax_ie_append_int(provdata, PROV_IE_FLAGS, cur->flags);
        if (force || cur->format)
            iax_ie_append_int(provdata, PROV_IE_FORMAT, cur->format);
        if (force || cur->tos)
            iax_ie_append_byte(provdata, PROV_IE_TOS, cur->tos);
 
        /* Calculate checksum of message so far */
        sig = prov_ver_calc(provdata);
        if (signature)
            *signature = sig;
        /* Store signature */
        iax_ie_append_int(provdata, PROV_IE_PROVVER, sig);
        /* Cache signature for later verification so we need not recalculate all this */
        snprintf(tmp, sizeof(tmp), "v0x%08x", sig);
        ast_db_put("iax/provisioning/cache", template, tmp);
    } else
        ast_db_put("iax/provisioning/cache", template, "u");
    ast_mutex_unlock(&provlock);
    return cur ? 0 : -1;
}

References iax_template::altserver, ast_db_put(), ast_mutex_lock, ast_mutex_unlock, iax_template::flags, iax_template::format, iax_ie_append_byte(), iax_ie_append_int(), iax_ie_append_short(), iax_ie_append_str(), iax_template_find(), iax_template::lang, iax_template::pass, iax_template::port, PROV_IE_ALTSERVER, PROV_IE_FLAGS, PROV_IE_FORMAT, PROV_IE_LANG, PROV_IE_PASS, PROV_IE_PORTNO, PROV_IE_PROVVER, PROV_IE_SERVERIP, PROV_IE_SERVERPORT, PROV_IE_TOS, PROV_IE_USER, prov_ver_calc(), provlock, iax_template::server, iax_template::serverport, iax_template::tos, and iax_template::user.

Referenced by iax2_provision(), and iax_provision_version().

iax_provision_free_templates()

static void iax_provision_free_templates ( int  dead )

static

Definition at line 501 of file provision.c.

{
    struct iax_template *cur;
 
    /* Drop dead or not (depending on dead) entries while locked */
    ast_mutex_lock(&provlock);
    AST_LIST_TRAVERSE_SAFE_BEGIN(&templates, cur, list) {
        if ((dead && cur->dead) || !dead) {
            AST_LIST_REMOVE_CURRENT(list);
            ast_free(cur);
        }
    }
    AST_LIST_TRAVERSE_SAFE_END;
    ast_mutex_unlock(&provlock);
}

References ast_free, AST_LIST_REMOVE_CURRENT, AST_LIST_TRAVERSE_SAFE_BEGIN, AST_LIST_TRAVERSE_SAFE_END, ast_mutex_lock, ast_mutex_unlock, iax_template::dead, iax_template::list, and provlock.

Referenced by iax_provision_reload(), and iax_provision_unload().

iax_provision_init()

static int iax_provision_init ( void  )

static

Definition at line 494 of file provision.c.

{
    ast_cli_register_multiple(cli_iax2_provision, sizeof(cli_iax2_provision) / sizeof(struct ast_cli_entry));
    provinit = 1;
    return 0;
}

References ast_cli_register_multiple, cli_iax2_provision, and provinit.

Referenced by iax_provision_reload().

iax_provision_reload()

int iax_provision_reload

(

int

reload

)

Definition at line 526 of file provision.c.

{
    struct ast_config *cfg;
    struct iax_template *cur;
    char *cat;
    int found = 0;
    struct ast_flags config_flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0 };
    if (!provinit)
        iax_provision_init();
 
    cfg = ast_config_load2("iaxprov.conf", "chan_iax2", config_flags);
    if (cfg != NULL && cfg != CONFIG_STATUS_FILEUNCHANGED && cfg != CONFIG_STATUS_FILEINVALID) {
        /* Mark all as dead.  No need for locking */
        AST_LIST_TRAVERSE(&templates, cur, list) {
            cur->dead = 1;
        }
 
        /* Load as appropriate */
        cat = ast_category_browse(cfg, NULL);
        while(cat) {
            if (strcasecmp(cat, "general")) {
                iax_process_template(cfg, cat, found ? "default" : NULL);
                found++;
                ast_verb(3, "Loaded provisioning template '%s'\n", cat);
            }
            cat = ast_category_browse(cfg, cat);
        }
        ast_config_destroy(cfg);
    } else if (cfg == CONFIG_STATUS_FILEUNCHANGED)
        return 0;
    else
        ast_log(LOG_NOTICE, "No IAX provisioning configuration found, IAX provisioning disabled.\n");
 
    iax_provision_free_templates(1 /* remove only marked as dead */);
 
    /* Purge cached signature DB entries */
    ast_db_deltree("iax/provisioning/cache", NULL);
    return 0;
}

References ast_category_browse(), ast_config_destroy(), ast_config_load2(), ast_db_deltree(), AST_LIST_TRAVERSE, ast_log, ast_verb, CONFIG_FLAG_FILEUNCHANGED, CONFIG_STATUS_FILEINVALID, CONFIG_STATUS_FILEUNCHANGED, iax_template::dead, iax_process_template(), iax_provision_free_templates(), iax_provision_init(), LOG_NOTICE, NULL, provinit, and reload().

Referenced by load_module(), and reload_config().

iax_provision_unload()

int iax_provision_unload

(

void

)

Definition at line 517 of file provision.c.

{
    provinit = 0;
    ast_cli_unregister_multiple(cli_iax2_provision, sizeof(cli_iax2_provision) / sizeof(struct ast_cli_entry));
    iax_provision_free_templates(0 /* Remove all templates. */);
 
    return 0;
}

References ast_cli_unregister_multiple(), cli_iax2_provision, iax_provision_free_templates(), and provinit.

Referenced by __unload_module().

iax_provision_version()

int iax_provision_version	(	unsigned int *	version,
		const char *	template,
		int	force
	)

Definition at line 258 of file provision.c.

{
    char tmp[80] = "";
    struct iax_ie_data ied;
    int ret=0;
    memset(&ied, 0, sizeof(ied));
 
    ast_mutex_lock(&provlock);
    if (ast_db_get("iax/provisioning/cache", template, tmp, sizeof(tmp))) {
        ast_log(LOG_ERROR, "ast_db_get failed to retrieve iax/provisioning/cache/%s\n", template);
    }
    if (sscanf(tmp, "v%30x", version) != 1) {
        if (strcmp(tmp, "u")) {
            ret = iax_provision_build(&ied, version, template, force);
            if (ret)
                ast_debug(1, "Unable to create provisioning packet for '%s'\n", template);
        } else
            ret = -1;
    } else
        ast_debug(1, "Retrieved cached version '%s' = '%08x'\n", tmp, *version);
    ast_mutex_unlock(&provlock);
    return ret;
}

References ast_db_get(), ast_debug, ast_log, ast_mutex_lock, ast_mutex_unlock, iax_provision_build(), LOG_ERROR, provlock, and version.

Referenced by check_provisioning().

iax_server()

static const char * iax_server ( unsigned int  addr )

static

Definition at line 422 of file provision.c.

{
    struct in_addr ia;
 
    if (!addr)
        return "<unspecified>";
 
    ia.s_addr = htonl(addr);
 
    return ast_inet_ntoa(ia);
}

References ast_inet_ntoa().

Referenced by iax_show_provisioning().

iax_show_provisioning()

static char * iax_show_provisioning ( struct ast_cli_entry *  e, int  cmd, struct ast_cli_args *  a  )

static

Definition at line 435 of file provision.c.

{
    struct iax_template *cur;
    char server[INET_ADDRSTRLEN];
    char alternate[INET_ADDRSTRLEN];
    char flags[80]; /* Has to be big enough for 'flags' too */
    int found = 0;
 
    switch (cmd) {
    case CLI_INIT:
        e->command = "iax2 show provisioning";
        e->usage =
            "Usage: iax2 show provisioning [template]\n"
            "       Lists all known IAX provisioning templates or a\n"
            "       specific one if specified.\n";
        return NULL;
    case CLI_GENERATE:
        return iax_prov_complete_template(a->line, a->word, a->pos, a->n);
    }
 
    if ((a->argc != 3) && (a->argc != 4))
        return CLI_SHOWUSAGE;
 
    ast_mutex_lock(&provlock);
    AST_LIST_TRAVERSE(&templates, cur, list) {
        if ((a->argc == 3) || (!strcasecmp(a->argv[3], cur->name)))  {
            if (found)
                ast_cli(a->fd, "\n");
            ast_copy_string(server, iax_server(cur->server), sizeof(server));
            ast_copy_string(alternate, iax_server(cur->altserver), sizeof(alternate));
            ast_cli(a->fd, "== %s ==\n", cur->name);
            ast_cli(a->fd, "Base Templ:   %s\n", strlen(cur->src) ? cur->src : "<none>");
            ast_cli(a->fd, "Username:     %s\n", ifthere(cur->user));
            ast_cli(a->fd, "Secret:       %s\n", ifthere(cur->pass));
            ast_cli(a->fd, "Language:     %s\n", ifthere(cur->lang));
            ast_cli(a->fd, "Bind Port:    %d\n", cur->port);
            ast_cli(a->fd, "Server:       %s\n", server);
            ast_cli(a->fd, "Server Port:  %d\n", cur->serverport);
            ast_cli(a->fd, "Alternate:    %s\n", alternate);
            ast_cli(a->fd, "Flags:        %s\n", iax_provflags2str(flags, sizeof(flags), cur->flags));
            ast_cli(a->fd, "Format:       %s\n", iax2_getformatname(cur->format));
            ast_cli(a->fd, "TOS:          0x%x\n", cur->tos);
            found++;
        }
    }
    ast_mutex_unlock(&provlock);
    if (!found) {
        if (a->argc == 3)
            ast_cli(a->fd, "No provisioning templates found\n");
        else
            ast_cli(a->fd, "No provisioning template matching '%s' found\n", a->argv[3]);
    }
    return CLI_SUCCESS;
}

References a, iax_template::altserver, ast_cli(), ast_copy_string(), AST_LIST_TRAVERSE, ast_mutex_lock, ast_mutex_unlock, CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, iax_template::flags, iax_template::format, iax2_getformatname(), iax_prov_complete_template(), iax_provflags2str(), iax_server(), ifthere(), iax_template::lang, iax_template::list, iax_template::name, NULL, iax_template::pass, iax_template::port, provlock, iax_template::server, iax_template::serverport, iax_template::src, iax_template::tos, ast_cli_entry::usage, and iax_template::user.

iax_str2flags()

static unsigned int iax_str2flags ( const char *  buf )

static

Definition at line 114 of file provision.c.

{
    int x;
    int len;
    unsigned int flags = 0;
    char *e;
    while(buf && *buf) {
        e = strchr(buf, ',');
        if (e)
            len = e - buf;
        else
            len = 0;
        for (x = 0; x < ARRAY_LEN(iax_flags); x++) {
            if ((len && !strncasecmp(iax_flags[x].name, buf, len)) ||
                (!len && !strcasecmp(iax_flags[x].name, buf))) {
                flags |= iax_flags[x].value;
                break;
            }
        }
        if (e) {
            buf = e + 1;
            while(*buf && (*buf < 33))
                buf++;
        } else
            break;
    }
    return flags;
}

References ARRAY_LEN, buf, iax_flags, len(), name, and iax_flag::value.

Referenced by iax_template_parse().

iax_template_copy()

static void iax_template_copy ( struct iax_template *  dst, struct iax_template *  src  )

static

Definition at line 143 of file provision.c.

{
    if (!dst || !src) {
        return;
    }
 
    dst->dead = src->dead;
    ast_copy_string(dst->name, src->name, sizeof(dst->name));
    ast_copy_string(dst->src, src->src, sizeof(dst->src));
    ast_copy_string(dst->user, src->user, sizeof(dst->user));
    ast_copy_string(dst->pass, src->pass, sizeof(dst->pass));
    ast_copy_string(dst->lang, src->lang, sizeof(dst->lang));
    dst->port = src->port;
    dst->server = src->server;
    dst->altserver = src->altserver;
    dst->flags = src->flags;
    dst->format = src->format;
    dst->tos = src->tos;
}

References iax_template::altserver, ast_copy_string(), iax_template::dead, iax_template::flags, iax_template::format, iax_template::lang, iax_template::name, iax_template::pass, iax_template::port, iax_template::server, iax_template::src, iax_template::tos, and iax_template::user.

Referenced by iax_template_parse().

iax_template_find()

static struct iax_template * iax_template_find ( const char *  s, int  allowdead  )

static

Definition at line 163 of file provision.c.

{
    struct iax_template *cur;
 
    AST_LIST_TRAVERSE(&templates, cur, list) {
        if (!strcasecmp(s, cur->name)) {
            if (!allowdead && cur->dead) {
                cur = NULL;
            }
            break;
        }
    }
 
    return cur;
}

References AST_LIST_TRAVERSE, iax_template::dead, iax_template::list, iax_template::name, and NULL.

Referenced by iax_process_template(), iax_provision_build(), and iax_template_parse().

iax_template_parse()

static int iax_template_parse ( struct iax_template *  cur, struct ast_config *  cfg, const char *  s, const char *  def  )

static

Definition at line 282 of file provision.c.

{
    struct ast_variable *v;
    int foundportno = 0;
    int foundserverportno = 0;
    int x;
    struct iax_template *src, tmp;
    const char *t;
    if (def) {
        t = ast_variable_retrieve(cfg, s ,"template");
        src = NULL;
        if (t && strlen(t)) {
            src = iax_template_find(t, 0);
            if (!src)
                ast_log(LOG_WARNING, "Unable to find base template '%s' for creating '%s'.  Trying '%s'\n", t, s, def);
            else
                def = t;
        }
        if (!src) {
            src = iax_template_find(def, 0);
            if (!src)
                ast_log(LOG_WARNING, "Unable to locate default base template '%s' for creating '%s', omitting.\n", def, s);
        }
        if (!src)
            return -1;
        ast_mutex_lock(&provlock);
        /* Backup old data */
        iax_template_copy(&tmp, cur);
        /* Restore from src */
        iax_template_copy(cur, src);
        /* Restore important headers */
        memcpy(cur->name, tmp.name, sizeof(cur->name));
        cur->dead = tmp.dead;
        ast_mutex_unlock(&provlock);
    }
    if (def)
        ast_copy_string(cur->src, def, sizeof(cur->src));
    else
        cur->src[0] = '\0';
    v = ast_variable_browse(cfg, s);
    while(v) {
        if (!strcasecmp(v->name, "port") || !strcasecmp(v->name, "serverport")) {
            if ((sscanf(v->value, "%5d", &x) == 1) && (x > 0) && (x < 65535)) {
                if (!strcasecmp(v->name, "port")) {
                    cur->port = x;
                    foundportno = 1;
                } else {
                    cur->serverport = x;
                    foundserverportno = 1;
                }
            } else
                ast_log(LOG_WARNING, "Ignoring invalid %s '%s' for '%s' at line %d\n", v->name, v->value, s, v->lineno);
        } else if (!strcasecmp(v->name, "server") || !strcasecmp(v->name, "altserver")) {
            struct ast_sockaddr addr = { {0,} };
            if (ast_sockaddr_resolve_first_af(&addr, v->value, PARSE_PORT_FORBID, AF_INET)) {
                ast_log(LOG_WARNING, "Ignoring invalid %s '%s' for '%s' at line %d\n", v->name, v->value, s, v->lineno);
            } else {
                if (!strcasecmp(v->name, "server"))
                    cur->server = ast_sockaddr_ipv4(&addr);
                else
                    cur->altserver = ast_sockaddr_ipv4(&addr);
            }
        } else if (!strcasecmp(v->name, "codec")) {
            struct ast_format *tmpfmt;
            if ((tmpfmt = ast_format_cache_get(v->value))) {
                cur->format = ast_format_compatibility_format2bitfield(tmpfmt);
                ao2_ref(tmpfmt, -1);
            } else
                ast_log(LOG_WARNING, "Ignoring invalid codec '%s' for '%s' at line %d\n", v->value, s, v->lineno);
        } else if (!strcasecmp(v->name, "tos")) {
            if (ast_str2tos(v->value, &cur->tos))
                ast_log(LOG_WARNING, "Invalid tos value at line %d, refer to QoS documentation\n", v->lineno);
        } else if (!strcasecmp(v->name, "user")) {
            ast_copy_string(cur->user, v->value, sizeof(cur->user));
            if (strcmp(cur->user, v->value))
                ast_log(LOG_WARNING, "Truncating username from '%s' to '%s' for '%s' at line %d\n", v->value, cur->user, s, v->lineno);
        } else if (!strcasecmp(v->name, "pass")) {
            ast_copy_string(cur->pass, v->value, sizeof(cur->pass));
            if (strcmp(cur->pass, v->value))
                ast_log(LOG_WARNING, "Truncating password from '%s' to '%s' for '%s' at line %d\n", v->value, cur->pass, s, v->lineno);
        } else if (!strcasecmp(v->name, "language")) {
            ast_copy_string(cur->lang, v->value, sizeof(cur->lang));
            if (strcmp(cur->lang, v->value))
                ast_log(LOG_WARNING, "Truncating language from '%s' to '%s' for '%s' at line %d\n", v->value, cur->lang, s, v->lineno);
        } else if (!strcasecmp(v->name, "flags")) {
            cur->flags = iax_str2flags(v->value);
        } else if (!strncasecmp(v->name, "flags", 5) && strchr(v->name, '+')) {
            cur->flags |= iax_str2flags(v->value);
        } else if (!strncasecmp(v->name, "flags", 5) && strchr(v->name, '-')) {
            cur->flags &= ~iax_str2flags(v->value);
        } else if (strcasecmp(v->name, "template")) {
            ast_log(LOG_WARNING, "Unknown keyword '%s' in definition of '%s' at line %d\n", v->name, s, v->lineno);
        }
        v = v->next;
    }
    if (!foundportno)
        cur->port = IAX_DEFAULT_PORTNO;
    if (!foundserverportno)
        cur->serverport = IAX_DEFAULT_PORTNO;
    return 0;
}

References iax_template::altserver, ao2_ref, ast_copy_string(), ast_format_cache_get, ast_format_compatibility_format2bitfield(), ast_log, ast_mutex_lock, ast_mutex_unlock, ast_sockaddr_ipv4(), ast_sockaddr_resolve_first_af(), ast_str2tos(), ast_variable_browse(), ast_variable_retrieve(), iax_template::dead, iax_template::flags, iax_template::format, IAX_DEFAULT_PORTNO, iax_str2flags(), iax_template_copy(), iax_template_find(), iax_template::lang, ast_variable::lineno, LOG_WARNING, iax_template::name, ast_variable::name, ast_variable::next, NULL, PARSE_PORT_FORBID, iax_template::pass, iax_template::port, provlock, iax_template::server, iax_template::serverport, iax_template::src, iax_template::tos, iax_template::user, and ast_variable::value.

Referenced by iax_process_template().

ifthere()

static const char * ifthere ( const char *  s )

static

Definition at line 414 of file provision.c.

{
    if (strlen(s))
        return s;
    else
        return "<unspecified>";
}

Referenced by iax_show_provisioning().

prov_ver_calc()

static unsigned int prov_ver_calc ( struct iax_ie_data *  provdata )

static

Definition at line 199 of file provision.c.

{
    struct MD5Context md5;
    unsigned int tmp[4];
    MD5Init(&md5);
    MD5Update(&md5, provdata->buf, provdata->pos);
    MD5Final((unsigned char *)tmp, &md5);
    return tmp[0] ^ tmp[1] ^ tmp[2] ^ tmp[3];
}

References iax_ie_data::buf, md5(), MD5Final(), MD5Init(), MD5Update(), and iax_ie_data::pos.

Referenced by iax_provision_build().

Variable Documentation

cli_iax2_provision

struct ast_cli_entry cli_iax2_provision[]

static

Initial value:

= {
    { .handler =  iax_show_provisioning , .summary =  "Display iax provisioning" ,},
}

Definition at line 490 of file provision.c.

                                                   {
    AST_CLI_DEFINE(iax_show_provisioning, "Display iax provisioning"),
};

Referenced by iax_provision_init(), and iax_provision_unload().

iax_flags

struct iax_flag iax_flags[]

static

Referenced by iax_provflags2str(), and iax_str2flags().

provinit

int provinit = 0

static

Definition at line 53 of file provision.c.

Referenced by iax_provision_init(), iax_provision_reload(), and iax_provision_unload().

provlock

ast_mutex_t provlock = AST_MUTEX_INIT_VALUE

static

Definition at line 74 of file provision.c.

Referenced by iax_process_template(), iax_prov_complete_template(), iax_provision_build(), iax_provision_free_templates(), iax_provision_version(), iax_show_provisioning(), and iax_template_parse().

templates

struct templates templates = AST_LIST_HEAD_NOLOCK_INIT_VALUE

static