mirror of http://gerrit.asterisk.org/asterisk
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@3382 65c4cc65-6c06-0410-ace0-fbb531ad65f31.0
Mark Spencer
21 years ago
parent
a7d2842beb
commit
155d84a979
@ -0,0 +1,504 @@
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/*
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* IAX Provisioning Protocol
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*
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* Asterisk Interface
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*
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* Copyright (C) 2004 Digium, Inc.
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*
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* Mark Spencer <markster@digium.com>
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License
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*
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*/
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#include <asterisk/config.h>
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#include <asterisk/logger.h>
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#include <asterisk/cli.h>
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#include <asterisk/lock.h>
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#include <asterisk/utils.h>
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#include <asterisk/frame.h>
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#include <asterisk/options.h>
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#include <asterisk/md5.h>
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#include <asterisk/astdb.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <sys/socket.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <netdb.h>
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#include "iax2.h"
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#include "iax2-provision.h"
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#include "iax2-parser.h"
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static int provinit = 0;
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struct iax_template {
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int dead;
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char name[80];
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char src[80];
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struct iax_template *next;
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char user[20];
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char pass[20];
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char lang[10];
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unsigned short port;
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unsigned int server;
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unsigned short serverport;
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unsigned int altserver;
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unsigned int flags;
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unsigned int format;
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int tos;
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} *templates;
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static struct iax_flag {
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char *name;
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int value;
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} iax_flags[] = {
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{ "register", PROV_FLAG_REGISTER },
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{ "secure", PROV_FLAG_SECURE },
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{ "heartbeat", PROV_FLAG_HEARTBEAT },
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{ "debug", PROV_FLAG_DEBUG },
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};
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char *iax_provflags2str(char *buf, int buflen, unsigned int flags)
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{
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int x;
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strcpy(buf, "");
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for (x=0;x<sizeof(iax_flags) / sizeof(iax_flags[0]); x++) {
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if (flags & iax_flags[x].value){
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strcat(buf, iax_flags[x].name);
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strcat(buf, ",");
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}
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}
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if (strlen(buf))
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buf[strlen(buf) - 1] = '\0';
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else
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strcpy(buf, "none");
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return buf;
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}
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static unsigned int iax_str2flags(const char *buf)
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{
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int x;
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int len;
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int found;
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unsigned int flags = 0;
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char *e;
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while(buf && *buf) {
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e = strchr(buf, ',');
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if (e)
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len = e - buf;
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else
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len = 0;
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found = 0;
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for (x=0;x<sizeof(iax_flags) / sizeof(iax_flags[0]); x++) {
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if ((len && !strncasecmp(iax_flags[x].name, buf, len)) ||
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(!len && !strcasecmp(iax_flags[x].name, buf))) {
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flags |= iax_flags[x].value;
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break;
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}
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}
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if (e) {
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buf = e + 1;
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while(*buf && (*buf < 33))
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buf++;
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} else
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break;
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}
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return flags;
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}
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AST_MUTEX_DEFINE_STATIC(provlock);
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static struct iax_template *iax_template_find(const char *s, int allowdead)
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{
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struct iax_template *cur;
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cur = templates;
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while(cur) {
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if (!strcasecmp(s, cur->name)) {
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if (!allowdead && cur->dead)
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cur = NULL;
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break;
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}
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cur = cur->next;
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}
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return cur;
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}
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char *iax_prov_complete_template(char *line, char *word, int pos, int state)
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{
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struct iax_template *c;
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int which=0;
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char *ret;
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ast_mutex_lock(&provlock);
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c = templates;
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while(c) {
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if (!strncasecmp(word, c->name, strlen(word))) {
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if (++which > state)
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break;
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}
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c = c->next;
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}
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if (c) {
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ret = strdup(c->name);
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} else
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ret = NULL;
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ast_mutex_unlock(&provlock);
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return ret;
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}
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static unsigned int prov_ver_calc(struct iax_ie_data *provdata)
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{
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struct MD5Context md5;
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unsigned int tmp[4];
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MD5Init(&md5);
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MD5Update(&md5, provdata->buf, provdata->pos);
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MD5Final((unsigned char *)tmp, &md5);
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return tmp[0] ^ tmp[1] ^ tmp[2] ^ tmp[3];
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}
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int iax_provision_build(struct iax_ie_data *provdata, unsigned int *signature, const char *template, int force)
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{
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struct iax_template *cur;
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unsigned int sig;
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char tmp[40];
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memset(provdata, 0, sizeof(*provdata));
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ast_mutex_lock(&provlock);
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cur = iax_template_find(template, 1);
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/* If no match, try searching for '*' */
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if (!cur)
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cur = iax_template_find("*", 1);
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if (cur) {
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/* found it -- add information elements as appropriate */
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if (force || strlen(cur->user))
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iax_ie_append_str(provdata, PROV_IE_USER, cur->user);
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if (force || strlen(cur->pass))
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iax_ie_append_str(provdata, PROV_IE_PASS, cur->pass);
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if (force || strlen(cur->lang))
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iax_ie_append_str(provdata, PROV_IE_LANG, cur->lang);
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if (force || cur->port)
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iax_ie_append_short(provdata, PROV_IE_PORTNO, cur->port);
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if (force || cur->server)
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iax_ie_append_int(provdata, PROV_IE_SERVERIP, cur->server);
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if (force || cur->serverport)
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iax_ie_append_short(provdata, PROV_IE_SERVERPORT, cur->serverport);
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if (force || cur->altserver)
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iax_ie_append_int(provdata, PROV_IE_ALTSERVER, cur->altserver);
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if (force || cur->flags)
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iax_ie_append_int(provdata, PROV_IE_FLAGS, cur->flags);
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if (force || cur->format)
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iax_ie_append_int(provdata, PROV_IE_FORMAT, cur->format);
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if (force || cur->tos)
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iax_ie_append_byte(provdata, PROV_IE_TOS, cur->tos);
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/* Calculate checksum of message so far */
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sig = prov_ver_calc(provdata);
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if (signature)
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*signature = sig;
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/* Store signature */
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iax_ie_append_int(provdata, PROV_IE_PROVVER, sig);
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/* Cache signature for later verification so we need not recalculate all this */
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snprintf(tmp, sizeof(tmp), "v0x%08x", sig);
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ast_db_put("iax/provisioning/cache", template, tmp);
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} else
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ast_db_put("iax/provisioning/cache", template, "u");
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ast_mutex_unlock(&provlock);
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return cur ? 0 : -1;
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}
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int iax_provision_version(unsigned int *version, const char *template, int force)
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{
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char tmp[80] = "";
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struct iax_ie_data ied;
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int ret=0;
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memset(&ied, 0, sizeof(ied));
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ast_mutex_lock(&provlock);
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ast_db_get("iax/provisioning/cache", template, tmp, sizeof(tmp));
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if (sscanf(tmp, "v%x", version) != 1) {
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if (strcmp(tmp, "u")) {
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ret = iax_provision_build(&ied, version, template, force);
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if (ret)
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ast_log(LOG_DEBUG, "Unable to create provisioning packet for '%s'\n", template);
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} else
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ret = -1;
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} else if (option_debug)
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ast_log(LOG_DEBUG, "Retrieved cached version '%s' = '%08x'\n", tmp, *version);
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ast_mutex_unlock(&provlock);
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return ret;
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}
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static int iax_template_parse(struct iax_template *cur, struct ast_config *cfg, char *s, char *def)
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{
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struct ast_variable *v;
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int foundportno = 0;
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int foundserverportno = 0;
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int x;
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struct in_addr ia;
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struct hostent *hp;
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struct ast_hostent h;
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struct iax_template *src, tmp;
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char *t;
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if (def) {
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t = ast_variable_retrieve(cfg, s ,"template");
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src = NULL;
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if (t && strlen(t)) {
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src = iax_template_find(t, 0);
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if (!src)
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ast_log(LOG_WARNING, "Unable to find base template '%s' for creating '%s'. Trying '%s'\n", t, s, def);
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else
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def = t;
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}
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if (!src) {
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src = iax_template_find(def, 0);
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if (!src)
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ast_log(LOG_WARNING, "Unable to locate default base template '%s' for creating '%s', omitting.", def, s);
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}
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if (!src)
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return -1;
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ast_mutex_lock(&provlock);
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/* Backup old data */
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memcpy(&tmp, cur, sizeof(tmp));
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/* Restore from src */
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memcpy(cur, src, sizeof(tmp));
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/* Restore important headers */
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memcpy(cur->name, tmp.name, sizeof(cur->name));
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cur->dead = tmp.dead;
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cur->next = tmp.next;
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ast_mutex_unlock(&provlock);
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}
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if (def)
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strncpy(cur->src, def, sizeof(cur->src) - 1);
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else
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strcpy(cur->src, "");
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v = ast_variable_browse(cfg, s);
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while(v) {
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if (!strcasecmp(v->name, "port") || !strcasecmp(v->name, "serverport")) {
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if ((sscanf(v->value, "%i", &x) == 1) && (x > 0) && (x < 65535)) {
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if (!strcasecmp(v->name, "port")) {
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cur->port = x;
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foundportno = 1;
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} else {
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cur->serverport = x;
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foundserverportno = 0;
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}
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} else
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ast_log(LOG_WARNING, "Ignoring invalid %s '%s' for '%s' at line %d\n", v->name, v->value, s, v->lineno);
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} else if (!strcasecmp(v->name, "server") || !strcasecmp(v->name, "altserver")) {
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hp = ast_gethostbyname(v->value, &h);
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if (hp) {
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memcpy(&ia, hp->h_addr, sizeof(ia));
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if (!strcasecmp(v->name, "server"))
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cur->server = ntohl(ia.s_addr);
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else
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cur->altserver = ntohl(ia.s_addr);
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} else
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ast_log(LOG_WARNING, "Ignoring invalid %s '%s' for '%s' at line %d\n", v->name, v->value, s, v->lineno);
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} else if (!strcasecmp(v->name, "codec")) {
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if ((x = ast_getformatbyname(v->value)) > 0) {
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cur->format = x;
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} else
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ast_log(LOG_WARNING, "Ignoring invalid codec '%s' for '%s' at line %d\n", v->value, s, v->lineno);
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} else if (!strcasecmp(v->name, "tos")) {
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if (sscanf(v->value, "%i", &x) == 1)
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cur->tos = x & 0xff;
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else if (!strcasecmp(v->value, "lowdelay"))
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cur->tos = IPTOS_LOWDELAY;
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else if (!strcasecmp(v->value, "throughput"))
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cur->tos = IPTOS_THROUGHPUT;
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else if (!strcasecmp(v->value, "reliability"))
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cur->tos = IPTOS_RELIABILITY;
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else if (!strcasecmp(v->value, "mincost"))
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cur->tos = IPTOS_MINCOST;
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else if (!strcasecmp(v->value, "none"))
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cur->tos = 0;
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else
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ast_log(LOG_WARNING, "Invalid tos value at line %d, should be 'lowdelay', 'throughput', 'reliability', 'mincost', or 'none'\n", v->lineno);
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} else if (!strcasecmp(v->name, "user")) {
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strncpy(cur->user, v->value, sizeof(cur->user) - 1);
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if (strcmp(cur->user, v->value))
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ast_log(LOG_WARNING, "Truncating username from '%s' to '%s' for '%s' at line %d\n", v->value, cur->user, s, v->lineno);
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} else if (!strcasecmp(v->name, "pass")) {
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strncpy(cur->pass, v->value, sizeof(cur->pass) - 1);
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if (strcmp(cur->pass, v->value))
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ast_log(LOG_WARNING, "Truncating password from '%s' to '%s' for '%s' at line %d\n", v->value, cur->pass, s, v->lineno);
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} else if (!strcasecmp(v->name, "language")) {
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strncpy(cur->lang, v->value, sizeof(cur->lang) - 1);
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if (strcmp(cur->lang, v->value))
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ast_log(LOG_WARNING, "Truncating language from '%s' to '%s' for '%s' at line %d\n", v->value, cur->lang, s, v->lineno);
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} else if (!strcasecmp(v->name, "flags")) {
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cur->flags = iax_str2flags(v->value);
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} else if (!strncasecmp(v->name, "flags", 5) && strchr(v->name, '+')) {
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cur->flags |= iax_str2flags(v->value);
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} else if (!strncasecmp(v->name, "flags", 5) && strchr(v->name, '-')) {
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cur->flags &= ~iax_str2flags(v->value);
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} else if (strcasecmp(v->name, "template")) {
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ast_log(LOG_WARNING, "Unknown keyword '%s' in definition of '%s' at line %d\n", v->name, s, v->lineno);
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}
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v = v->next;
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}
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if (!foundportno)
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cur->port = IAX_DEFAULT_PORTNO;
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if (!foundserverportno)
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cur->serverport = IAX_DEFAULT_PORTNO;
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return 0;
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}
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static int iax_process_template(struct ast_config *cfg, char *s, char *def)
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{
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/* Find an already existing one if there */
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struct iax_template *cur;
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int mallocd = 0;
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cur = templates;
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while(cur) {
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if (!strcasecmp(cur->name, s))
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break;
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cur = cur->next;
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}
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if (!cur) {
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mallocd = 1;
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cur = malloc(sizeof(struct iax_template));
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if (!cur) {
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ast_log(LOG_WARNING, "Out of memory!\n");
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return -1;
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}
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/* Initialize entry */
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memset(cur, 0, sizeof(*cur));
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strncpy(cur->name, s, sizeof(cur->name) - 1);
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cur->dead = 1;
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}
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if (!iax_template_parse(cur, cfg, s, def))
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cur->dead = 0;
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/* Link if we're mallocd */
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if (mallocd) {
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ast_mutex_lock(&provlock);
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cur->next = templates;
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templates = cur;
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ast_mutex_unlock(&provlock);
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}
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return 0;
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}
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static char show_provisioning_usage[] =
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"Usage: iax show provisioning [template]\n"
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" Lists all known IAX provisioning templates or a\n"
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" specific one if specified.\n";
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static const char *ifthere(const char *s)
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{
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if (strlen(s))
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return s;
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else
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return "<unspecified>";
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}
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static const char *iax_server(char *a, int alen, unsigned int addr)
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{
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struct in_addr ia;
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if (!addr)
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return "<unspecified>";
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ia.s_addr = htonl(addr);
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return ast_inet_ntoa(a, alen, ia);
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}
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static int iax_show_provisioning(int fd, int argc, char *argv[])
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{
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struct iax_template *cur;
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char iabuf[80]; /* Has to be big enough for 'flags' too */
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int found = 0;
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if ((argc != 3) && (argc != 4))
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return RESULT_SHOWUSAGE;
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ast_mutex_lock(&provlock);
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for (cur = templates;cur;cur = cur->next) {
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if ((argc == 3) || (!strcasecmp(argv[3], cur->name))) {
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if (found) ast_cli(fd, "\n");
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ast_cli(fd, "== %s ==\n", cur->name);
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ast_cli(fd, "Base Templ: %s\n", strlen(cur->src) ? cur->src : "<none>");
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ast_cli(fd, "Username: %s\n", ifthere(cur->user));
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ast_cli(fd, "Secret: %s\n", ifthere(cur->pass));
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ast_cli(fd, "Language: %s\n", ifthere(cur->lang));
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ast_cli(fd, "Bind Port: %d\n", cur->port);
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ast_cli(fd, "Server: %s\n", iax_server(iabuf, sizeof(iabuf), cur->server));
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ast_cli(fd, "Server Port: %d\n", cur->serverport);
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ast_cli(fd, "Alternate: %s\n", iax_server(iabuf, sizeof(iabuf), cur->altserver));
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ast_cli(fd, "Flags: %s\n", iax_provflags2str(iabuf, sizeof(iabuf), cur->flags));
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ast_cli(fd, "Format: %s\n", ast_getformatname(cur->format));
|
||||
ast_cli(fd, "TOS: %d\n", cur->tos);
|
||||
found++;
|
||||
}
|
||||
}
|
||||
ast_mutex_unlock(&provlock);
|
||||
if (!found) {
|
||||
if (argc == 3)
|
||||
ast_cli(fd, "No provisioning templates found\n");
|
||||
else
|
||||
ast_cli(fd, "No provisioning template matching '%s' found\n", argv[3]);
|
||||
}
|
||||
return RESULT_SUCCESS;
|
||||
}
|
||||
|
||||
static struct ast_cli_entry cli_show_provisioning =
|
||||
{ { "iax2", "show", "provisioning", NULL }, iax_show_provisioning, "Show iax provisioning", show_provisioning_usage, iax_prov_complete_template };
|
||||
|
||||
static int iax_provision_init(void)
|
||||
{
|
||||
ast_cli_register(&cli_show_provisioning);
|
||||
provinit = 1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int iax_provision_reload(void)
|
||||
{
|
||||
struct ast_config *cfg;
|
||||
struct iax_template *cur, *prev, *next;
|
||||
char *cat;
|
||||
int found = 0;
|
||||
if (!provinit)
|
||||
iax_provision_init();
|
||||
/* Mark all as dead. No need for locking */
|
||||
cur = templates;
|
||||
while(cur) {
|
||||
cur->dead = 1;
|
||||
cur = cur->next;
|
||||
}
|
||||
cfg = ast_load("iaxprov.conf");
|
||||
if (cfg) {
|
||||
/* Load as appropriate */
|
||||
cat = ast_category_browse(cfg, NULL);
|
||||
while(cat) {
|
||||
if (strcasecmp(cat, "general")) {
|
||||
iax_process_template(cfg, cat, found ? "default" : NULL);
|
||||
found++;
|
||||
if (option_verbose > 2)
|
||||
ast_verbose(VERBOSE_PREFIX_3 "Loaded provisioning template '%s'\n", cat);
|
||||
}
|
||||
cat = ast_category_browse(cfg, cat);
|
||||
}
|
||||
} else
|
||||
ast_log(LOG_NOTICE, "No IAX provisioning configuration found, IAX provisioning disabled.\n");
|
||||
ast_mutex_lock(&provlock);
|
||||
/* Drop dead entries while locked */
|
||||
prev = NULL;
|
||||
cur = templates;
|
||||
while(cur) {
|
||||
next = cur->next;
|
||||
if (cur->dead) {
|
||||
if (prev)
|
||||
prev->next = next;
|
||||
else
|
||||
templates = next;
|
||||
free(cur);
|
||||
} else
|
||||
prev = cur;
|
||||
cur = next;
|
||||
}
|
||||
ast_mutex_unlock(&provlock);
|
||||
/* Purge cached signature DB entries */
|
||||
ast_db_deltree("iax/provisioning/cache", NULL);
|
||||
return 0;
|
||||
|
||||
}
|
||||
@ -0,0 +1,43 @@
|
||||
/*
|
||||
* IAX Provisioning Protocol
|
||||
*
|
||||
* Sub-information elements
|
||||
*
|
||||
* Copyright (C) 2003, Digium
|
||||
*
|
||||
* Mark Spencer <markster@digium.com>
|
||||
*
|
||||
*/
|
||||
|
||||
#include "iax2-parser.h"
|
||||
|
||||
#define PROV_IE_USEDHCP 1 /* Presense only */
|
||||
#define PROV_IE_IPADDR 2 /* 32-bit */
|
||||
#define PROV_IE_SUBNET 3 /* 32-bit */
|
||||
#define PROV_IE_GATEWAY 4 /* 32-bit */
|
||||
#define PROV_IE_PORTNO 5 /* 16-bit */
|
||||
#define PROV_IE_USER 6 /* < 20 bytes */
|
||||
#define PROV_IE_PASS 7 /* < 20 bytes */
|
||||
#define PROV_IE_SERVERUSER 8 /* < 20 bytes */
|
||||
#define PROV_IE_SERVERPASS 9 /* < 20 bytes */
|
||||
#define PROV_IE_LANG 10 /* < 10 bytes */
|
||||
#define PROV_IE_TOS 11 /* 8-bits */
|
||||
#define PROV_IE_FLAGS 12 /* 32-bits */
|
||||
#define PROV_IE_FORMAT 13 /* 32-bits */
|
||||
#define PROV_IE_AESKEY 14 /* 128-bits */
|
||||
#define PROV_IE_SERVERIP 15 /* 32-bits */
|
||||
#define PROV_IE_SERVERPORT 16 /* 16-bits */
|
||||
#define PROV_IE_NEWAESKEY 17 /* 128-bits */
|
||||
#define PROV_IE_PROVVER 18 /* 32-bits */
|
||||
#define PROV_IE_ALTSERVER 19 /* 32-bits */
|
||||
|
||||
#define PROV_FLAG_REGISTER (1 << 0)
|
||||
#define PROV_FLAG_SECURE (1 << 1)
|
||||
#define PROV_FLAG_HEARTBEAT (1 << 2)
|
||||
#define PROV_FLAG_DEBUG (1 << 3)
|
||||
|
||||
extern char *iax_provflags2str(char *buf, int buflen, unsigned int flags);
|
||||
extern int iax_provision_reload(void);
|
||||
extern int iax_provision_build(struct iax_ie_data *provdata, unsigned int *signature, const char *template, int force);
|
||||
extern int iax_provision_version(unsigned int *signature, const char *template, int force);
|
||||
extern char *iax_prov_complete_template(char *line, char *word, int pos, int state);
|
||||
@ -0,0 +1,86 @@
|
||||
;
|
||||
; IAX2 Provisioning Information
|
||||
;
|
||||
; Contains provisioning information for templates
|
||||
; and for specific service entries.
|
||||
;
|
||||
; Templates provide a group of settings from which provisioning takes
|
||||
; place. A template may be based upon any template that has been
|
||||
; specified before it. If the template that an entry is based on is not
|
||||
; specified then it is presumed to be 'default' (unless it is the first
|
||||
; of course).
|
||||
;
|
||||
; Templates which begin with 'si-' are used for provisioning
|
||||
; units with specific service identifiers. For example the
|
||||
; entry "si-000364000126" would be used when the device with the
|
||||
; corresponding service identifier of "000364000126" attempts
|
||||
; to register or make a call.
|
||||
;
|
||||
[default]
|
||||
;
|
||||
; The port number the device should use to bind to. The default
|
||||
; is 4569
|
||||
;
|
||||
;port=4569
|
||||
;
|
||||
; server is our PRIMARY server for registration and placing calls
|
||||
;
|
||||
;server=192.168.69.3
|
||||
;
|
||||
; altserver is the BACKUP server for registration and placing calls
|
||||
; in the event the primary server is unavailable.
|
||||
;
|
||||
;altserver=192.168.69.4
|
||||
;
|
||||
; port is the port number to use for IAX2 outbound. The
|
||||
; connections to the server and altserver -- default is of course
|
||||
; 4569.
|
||||
;serverport=4569
|
||||
;
|
||||
; language is the preferred language for the device
|
||||
;
|
||||
;language=en
|
||||
;
|
||||
; codec is the requested codec. The iaxy supports ulaw and adpcm
|
||||
;
|
||||
codec=ulaw
|
||||
;
|
||||
; flags is a comma separated list of flags which the device should
|
||||
; use and may contain any of the following keywords:
|
||||
;
|
||||
; "register" - Register with server
|
||||
; "secure" - Do not accept calls / provisioning not originated by the server
|
||||
; "heartbeat" - Generate status packets on port 9999 sent to 255.255.255.255
|
||||
; "debug" - Output extra debugging to port 9999
|
||||
;
|
||||
; Note that use can use += and -= to adjust parameters
|
||||
;
|
||||
flags=register,heartbeat
|
||||
;
|
||||
; tos is the requested type of service setting and may be one a number or
|
||||
; 'lowdelay','throughput','reliability','mincost' or 'none'
|
||||
;
|
||||
tos=lowdelay
|
||||
;
|
||||
; Example iaxy provisioning
|
||||
;
|
||||
;[si-000364000126]
|
||||
;user=iaxy
|
||||
;pass=bitsy
|
||||
;flags += debug
|
||||
|
||||
;[si-000364000127]
|
||||
;user=iaxy2
|
||||
;pass=bitsy2
|
||||
;template=si-000364000126
|
||||
;flags += debug
|
||||
|
||||
;
|
||||
;[*]
|
||||
;
|
||||
; If specified, the '*' provisioning is used for all devices which do
|
||||
; not have another provisioning entry within the file. If unspecified, no
|
||||
; provisioning will take place for devices which have no entry. DO NOT
|
||||
; USE A '*' PROVISIONING ENTRY UNLESS YOU KNOW WHAT YOU'RE DOING.
|
||||
;
|
||||
;template=default
|
||||
Loading…
Reference in new issue