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-rw-r--r--1.2-netsec/acl.c355
1 files changed, 0 insertions, 355 deletions
diff --git a/1.2-netsec/acl.c b/1.2-netsec/acl.c
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index 326cdb66d..000000000
--- a/1.2-netsec/acl.c
+++ /dev/null
@@ -1,355 +0,0 @@
-/*
- * Asterisk -- An open source telephony toolkit.
- *
- * Copyright (C) 1999 - 2005, Digium, Inc.
- *
- * Mark Spencer <markster@digium.com>
- *
- * See http://www.asterisk.org for more information about
- * the Asterisk project. Please do not directly contact
- * any of the maintainers of this project for assistance;
- * the project provides a web site, mailing lists and IRC
- * channels for your use.
- *
- * This program is free software, distributed under the terms of
- * the GNU General Public License Version 2. See the LICENSE file
- * at the top of the source tree.
- */
-
-/*! \file
- *
- * \brief Various sorts of access control
- *
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/time.h>
-#include <signal.h>
-#include <errno.h>
-#include <unistd.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <sys/socket.h>
-#include <netdb.h>
-#include <net/if.h>
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#include <sys/ioctl.h>
-
-#if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__FreeBSD__)
-#include <fcntl.h>
-#include <net/route.h>
-#endif
-
-#if defined(SOLARIS)
-#include <sys/sockio.h>
-#endif
-
-/* netinet/ip.h may not define the following (See RFCs 791 and 1349) */
-#if !defined(IPTOS_LOWCOST)
-#define IPTOS_LOWCOST 0x02
-#endif
-
-#if !defined(IPTOS_MINCOST)
-#define IPTOS_MINCOST IPTOS_LOWCOST
-#endif
-
-#include "asterisk.h"
-
-ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
-
-#include "asterisk/acl.h"
-#include "asterisk/logger.h"
-#include "asterisk/channel.h"
-#include "asterisk/options.h"
-#include "asterisk/utils.h"
-#include "asterisk/lock.h"
-#include "asterisk/srv.h"
-#include "asterisk/compat.h"
-
-#if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__FreeBSD__)
-AST_MUTEX_DEFINE_STATIC(routeseq_lock);
-#endif
-
-struct ast_ha {
- /* Host access rule */
- struct in_addr netaddr;
- struct in_addr netmask;
- int sense;
- struct ast_ha *next;
-};
-
-/* Default IP - if not otherwise set, don't breathe garbage */
-static struct in_addr __ourip = { 0x00000000 };
-
-struct my_ifreq {
- char ifrn_name[IFNAMSIZ]; /* Interface name, e.g. "eth0", "ppp0", etc. */
- struct sockaddr_in ifru_addr;
-};
-
-/* Free HA structure */
-void ast_free_ha(struct ast_ha *ha)
-{
- struct ast_ha *hal;
- while(ha) {
- hal = ha;
- ha = ha->next;
- free(hal);
- }
-}
-
-/* Copy HA structure */
-static void ast_copy_ha(struct ast_ha *from, struct ast_ha *to)
-{
- memcpy(&to->netaddr, &from->netaddr, sizeof(from->netaddr));
- memcpy(&to->netmask, &from->netmask, sizeof(from->netmask));
- to->sense = from->sense;
-}
-
-/* Create duplicate of ha structure */
-static struct ast_ha *ast_duplicate_ha(struct ast_ha *original)
-{
- struct ast_ha *new_ha = malloc(sizeof(struct ast_ha));
- /* Copy from original to new object */
- ast_copy_ha(original, new_ha);
-
- return new_ha;
-}
-
-/* Create duplicate HA link list */
-/* Used in chan_sip2 templates */
-struct ast_ha *ast_duplicate_ha_list(struct ast_ha *original)
-{
- struct ast_ha *start=original;
- struct ast_ha *ret = NULL;
- struct ast_ha *link,*prev=NULL;
-
- while (start) {
- link = ast_duplicate_ha(start); /* Create copy of this object */
- if (prev)
- prev->next = link; /* Link previous to this object */
-
- if (!ret)
- ret = link; /* Save starting point */
-
- start = start->next; /* Go to next object */
- prev = link; /* Save pointer to this object */
- }
- return ret; /* Return start of list */
-}
-
-struct ast_ha *ast_append_ha(char *sense, char *stuff, struct ast_ha *path)
-{
- struct ast_ha *ha = malloc(sizeof(struct ast_ha));
- char *nm = "255.255.255.255";
- char tmp[256];
- struct ast_ha *prev = NULL;
- struct ast_ha *ret;
- int x, z;
- unsigned int y;
- ret = path;
- while (path) {
- prev = path;
- path = path->next;
- }
- if (ha) {
- ast_copy_string(tmp, stuff, sizeof(tmp));
- nm = strchr(tmp, '/');
- if (!nm) {
- nm = "255.255.255.255";
- } else {
- *nm = '\0';
- nm++;
- }
- if (!strchr(nm, '.')) {
- if ((sscanf(nm, "%d", &x) == 1) && (x >= 0) && (x <= 32)) {
- y = 0;
- for (z=0;z<x;z++) {
- y >>= 1;
- y |= 0x80000000;
- }
- ha->netmask.s_addr = htonl(y);
- }
- } else if (!inet_aton(nm, &ha->netmask)) {
- ast_log(LOG_WARNING, "%s is not a valid netmask\n", nm);
- free(ha);
- return path;
- }
- if (!inet_aton(tmp, &ha->netaddr)) {
- ast_log(LOG_WARNING, "%s is not a valid IP\n", tmp);
- free(ha);
- return path;
- }
- ha->netaddr.s_addr &= ha->netmask.s_addr;
- if (!strncasecmp(sense, "p", 1)) {
- ha->sense = AST_SENSE_ALLOW;
- } else {
- ha->sense = AST_SENSE_DENY;
- }
- ha->next = NULL;
- if (prev) {
- prev->next = ha;
- } else {
- ret = ha;
- }
- }
- ast_log(LOG_DEBUG, "%s/%s appended to acl for peer\n", stuff, nm);
- return ret;
-}
-
-int ast_apply_ha(struct ast_ha *ha, struct sockaddr_in *sin)
-{
- /* Start optimistic */
- int res = AST_SENSE_ALLOW;
- while (ha) {
- char iabuf[INET_ADDRSTRLEN];
- char iabuf2[INET_ADDRSTRLEN];
- /* DEBUG */
- ast_log(LOG_DEBUG,
- "##### Testing %s with %s\n",
- ast_inet_ntoa(iabuf, sizeof(iabuf), sin->sin_addr),
- ast_inet_ntoa(iabuf2, sizeof(iabuf2), ha->netaddr));
- /* For each rule, if this address and the netmask = the net address
- apply the current rule */
- if ((sin->sin_addr.s_addr & ha->netmask.s_addr) == ha->netaddr.s_addr)
- res = ha->sense;
- ha = ha->next;
- }
- return res;
-}
-
-int ast_get_ip_or_srv(struct sockaddr_in *sin, const char *value, const char *service)
-{
- struct hostent *hp;
- struct ast_hostent ahp;
- char srv[256];
- char host[256];
- int tportno = ntohs(sin->sin_port);
- if (inet_aton(value, &sin->sin_addr))
- return 0;
- if (service) {
- snprintf(srv, sizeof(srv), "%s.%s", service, value);
- if (ast_get_srv(NULL, host, sizeof(host), &tportno, srv) > 0) {
- sin->sin_port = htons(tportno);
- value = host;
- }
- }
- hp = ast_gethostbyname(value, &ahp);
- if (hp) {
- memcpy(&sin->sin_addr, hp->h_addr, sizeof(sin->sin_addr));
- } else {
- ast_log(LOG_WARNING, "Unable to lookup '%s'\n", value);
- return -1;
- }
- return 0;
-}
-
-int ast_str2tos(const char *value, int *tos)
-{
- int fval;
- if (sscanf(value, "%i", &fval) == 1)
- *tos = fval & 0xff;
- else if (!strcasecmp(value, "lowdelay"))
- *tos = IPTOS_LOWDELAY;
- else if (!strcasecmp(value, "throughput"))
- *tos = IPTOS_THROUGHPUT;
- else if (!strcasecmp(value, "reliability"))
- *tos = IPTOS_RELIABILITY;
- else if (!strcasecmp(value, "mincost"))
- *tos = IPTOS_MINCOST;
- else if (!strcasecmp(value, "none"))
- *tos = 0;
- else
- return -1;
- return 0;
-}
-
-int ast_get_ip(struct sockaddr_in *sin, const char *value)
-{
- return ast_get_ip_or_srv(sin, value, NULL);
-}
-
-/* iface is the interface (e.g. eth0); address is the return value */
-int ast_lookup_iface(char *iface, struct in_addr *address)
-{
- int mysock, res = 0;
- struct my_ifreq ifreq;
-
- memset(&ifreq, 0, sizeof(ifreq));
- ast_copy_string(ifreq.ifrn_name, iface, sizeof(ifreq.ifrn_name));
-
- mysock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
- res = ioctl(mysock, SIOCGIFADDR, &ifreq);
-
- close(mysock);
- if (res < 0) {
- ast_log(LOG_WARNING, "Unable to get IP of %s: %s\n", iface, strerror(errno));
- memcpy((char *)address, (char *)&__ourip, sizeof(__ourip));
- return -1;
- } else {
- memcpy((char *)address, (char *)&ifreq.ifru_addr.sin_addr, sizeof(ifreq.ifru_addr.sin_addr));
- return 0;
- }
-}
-
-int ast_ouraddrfor(struct in_addr *them, struct in_addr *us)
-{
- int s;
- struct sockaddr_in sin;
- socklen_t slen;
-
- s = socket(PF_INET, SOCK_DGRAM, 0);
- if (s < 0) {
- ast_log(LOG_WARNING, "Cannot create socket\n");
- return -1;
- }
- sin.sin_family = AF_INET;
- sin.sin_port = 5060;
- sin.sin_addr = *them;
- if (connect(s, (struct sockaddr *)&sin, sizeof(sin))) {
- ast_log(LOG_WARNING, "Cannot connect\n");
- close(s);
- return -1;
- }
- slen = sizeof(sin);
- if (getsockname(s, (struct sockaddr *)&sin, &slen)) {
- ast_log(LOG_WARNING, "Cannot get socket name\n");
- close(s);
- return -1;
- }
- close(s);
- *us = sin.sin_addr;
- return 0;
-}
-
-int ast_find_ourip(struct in_addr *ourip, struct sockaddr_in bindaddr)
-{
- char ourhost[MAXHOSTNAMELEN] = "";
- struct ast_hostent ahp;
- struct hostent *hp;
- struct in_addr saddr;
-
- /* just use the bind address if it is nonzero */
- if (ntohl(bindaddr.sin_addr.s_addr)) {
- memcpy(ourip, &bindaddr.sin_addr, sizeof(*ourip));
- return 0;
- }
- /* try to use our hostname */
- if (gethostname(ourhost, sizeof(ourhost) - 1)) {
- ast_log(LOG_WARNING, "Unable to get hostname\n");
- } else {
- hp = ast_gethostbyname(ourhost, &ahp);
- if (hp) {
- memcpy(ourip, hp->h_addr, sizeof(*ourip));
- return 0;
- }
- }
- /* A.ROOT-SERVERS.NET. */
- if (inet_aton("198.41.0.4", &saddr) && !ast_ouraddrfor(&saddr, ourip))
- return 0;
- return -1;
-}
-
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