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-rw-r--r--1.4.23-rc4/main/acl.c590
1 files changed, 0 insertions, 590 deletions
diff --git a/1.4.23-rc4/main/acl.c b/1.4.23-rc4/main/acl.c
deleted file mode 100644
index 4a5e16485..000000000
--- a/1.4.23-rc4/main/acl.c
+++ /dev/null
@@ -1,590 +0,0 @@
-/*
- * Asterisk -- An open source telephony toolkit.
- *
- * Copyright (C) 1999 - 2006, 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
- *
- * \author Mark Spencer <markster@digium.com>
- */
-
-#include "asterisk.h"
-
-ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
-
-#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_systm.h>
-#include <netinet/ip.h>
-#include <sys/ioctl.h>
-
-#if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__FreeBSD__) || defined(__Darwin__)
-#include <fcntl.h>
-#include <net/route.h>
-#endif
-
-#if defined(SOLARIS)
-#include <sys/sockio.h>
-#include <net/if.h>
-#elif defined(HAVE_GETIFADDRS)
-#include <ifaddrs.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/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"
-
-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 = { .s_addr = 0x00000000, };
-
-struct my_ifreq {
- char ifrn_name[IFNAMSIZ]; /* Interface name, e.g. "eth0", "ppp0", etc. */
- struct sockaddr_in ifru_addr;
-};
-
-#if (!defined(SOLARIS) && !defined(HAVE_GETIFADDRS))
-static int get_local_address(struct in_addr *ourip)
-{
- return -1;
-}
-#else
-static void score_address(const struct sockaddr_in *sin, struct in_addr *best_addr, int *best_score)
-{
- const char *address;
- int score;
-
- address = ast_inet_ntoa(sin->sin_addr);
-
- /* RFC 1700 alias for the local network */
- if (address[0] == '0')
- score = -25;
- /* RFC 1700 localnet */
- else if (strncmp(address, "127", 3) == 0)
- score = -20;
- /* RFC 1918 non-public address space */
- else if (strncmp(address, "10.", 3) == 0)
- score = -5;
- /* RFC 1918 non-public address space */
- else if (strncmp(address, "172", 3) == 0) {
- /* 172.16.0.0 - 172.19.255.255, but not 172.160.0.0 - 172.169.255.255 */
- if (address[4] == '1' && address[5] >= '6' && address[6] == '.')
- score = -5;
- /* 172.20.0.0 - 172.29.255.255, but not 172.200.0.0 - 172.255.255.255 nor 172.2.0.0 - 172.2.255.255 */
- else if (address[4] == '2' && address[6] == '.')
- score = -5;
- /* 172.30.0.0 - 172.31.255.255 */
- else if (address[4] == '3' && address[5] <= '1')
- score = -5;
- /* All other 172 addresses are public */
- else
- score = 0;
- /* RFC 2544 Benchmark test range */
- } else if (strncmp(address, "198.1", 5) == 0 && address[5] >= '8' && address[6] == '.')
- score = -10;
- /* RFC 1918 non-public address space */
- else if (strncmp(address, "192.168", 7) == 0)
- score = -5;
- /* RFC 3330 Zeroconf network */
- else if (strncmp(address, "169.254", 7) == 0)
- /*!\note Better score than a test network, but not quite as good as RFC 1918
- * address space. The reason is that some Linux distributions automatically
- * configure a Zeroconf address before trying DHCP, so we want to prefer a
- * DHCP lease to a Zeroconf address.
- */
- score = -10;
- /* RFC 3330 Test network */
- else if (strncmp(address, "192.0.2.", 8) == 0)
- score = -15;
- /* Every other address should be publically routable */
- else
- score = 0;
-
- if (score > *best_score) {
- *best_score = score;
- memcpy(best_addr, &sin->sin_addr, sizeof(*best_addr));
- }
-}
-
-static int get_local_address(struct in_addr *ourip)
-{
- int s, res = -1;
-#ifdef SOLARIS
- struct lifreq *ifr = NULL;
- struct lifnum ifn;
- struct lifconf ifc;
- struct sockaddr_in *sa;
- char *buf = NULL;
- int bufsz, x;
-#endif /* SOLARIS */
-#if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__FreeBSD__) || defined(__linux__) || defined(__Darwin__)
- struct ifaddrs *ifap, *ifaphead;
- int rtnerr;
- const struct sockaddr_in *sin;
-#endif /* BSD_OR_LINUX */
- struct in_addr best_addr;
- int best_score = -100;
- memset(&best_addr, 0, sizeof(best_addr));
-
-#if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__FreeBSD__) || defined(__linux__) || defined(__Darwin__)
- rtnerr = getifaddrs(&ifaphead);
- if (rtnerr) {
- perror(NULL);
- return -1;
- }
-#endif /* BSD_OR_LINUX */
-
- s = socket(AF_INET, SOCK_STREAM, 0);
-
- if (s > 0) {
-#if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__FreeBSD__) || defined(__linux__) || defined(__Darwin__)
- for (ifap = ifaphead; ifap; ifap = ifap->ifa_next) {
-
- if (ifap->ifa_addr && ifap->ifa_addr->sa_family == AF_INET) {
- sin = (const struct sockaddr_in *) ifap->ifa_addr;
- score_address(sin, &best_addr, &best_score);
- res = 0;
-
- if (best_score == 0)
- break;
- }
- }
-#endif /* BSD_OR_LINUX */
-
- /* There is no reason whatsoever that this shouldn't work on Linux or BSD also. */
-#ifdef SOLARIS
- /* Get a count of interfaces on the machine */
- ifn.lifn_family = AF_INET;
- ifn.lifn_flags = 0;
- ifn.lifn_count = 0;
- if (ioctl(s, SIOCGLIFNUM, &ifn) < 0) {
- close(s);
- return -1;
- }
-
- bufsz = ifn.lifn_count * sizeof(struct lifreq);
- if (!(buf = malloc(bufsz))) {
- close(s);
- return -1;
- }
- memset(buf, 0, bufsz);
-
- /* Get a list of interfaces on the machine */
- ifc.lifc_len = bufsz;
- ifc.lifc_buf = buf;
- ifc.lifc_family = AF_INET;
- ifc.lifc_flags = 0;
- if (ioctl(s, SIOCGLIFCONF, &ifc) < 0) {
- close(s);
- free(buf);
- return -1;
- }
-
- for (ifr = ifc.lifc_req, x = 0; x < ifn.lifn_count; ifr++, x++) {
- sa = (struct sockaddr_in *)&(ifr->lifr_addr);
- score_address(sa, &best_addr, &best_score);
- res = 0;
-
- if (best_score == 0)
- break;
- }
-
- free(buf);
-#endif /* SOLARIS */
-
- close(s);
- }
-#if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__FreeBSD__) || defined(__linux__) || defined(__Darwin__)
- freeifaddrs(ifaphead);
-#endif /* BSD_OR_LINUX */
-
- if (res == 0 && ourip)
- memcpy(ourip, &best_addr, sizeof(*ourip));
- return res;
-}
-#endif /* HAVE_GETIFADDRS */
-
-/* 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;
-
- if ((new_ha = ast_malloc(sizeof(*new_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;
- 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_malloc(sizeof(*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 ret;
- }
- if (!inet_aton(tmp, &ha->netaddr)) {
- ast_log(LOG_WARNING, "%s is not a valid IP\n", tmp);
- free(ha);
- return ret;
- }
- 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;
- }
- }
- if (option_debug)
- 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_copy_string(iabuf, ast_inet_ntoa(sin->sin_addr), sizeof(iabuf));
- ast_copy_string(iabuf2, ast_inet_ntoa(ha->netaddr), sizeof(iabuf2));
- if (option_debug)
- ast_log(LOG_DEBUG, "##### Testing %s with %s\n", iabuf, iabuf2);
- /* 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;
-}
-
-struct dscp_codepoint {
- char *name;
- unsigned int space;
-};
-
-/* IANA registered DSCP codepoints */
-
-static const struct dscp_codepoint dscp_pool1[] = {
- { "CS0", 0x00 },
- { "CS1", 0x08 },
- { "CS2", 0x10 },
- { "CS3", 0x18 },
- { "CS4", 0x20 },
- { "CS5", 0x28 },
- { "CS6", 0x30 },
- { "CS7", 0x38 },
- { "AF11", 0x0A },
- { "AF12", 0x0C },
- { "AF13", 0x0E },
- { "AF21", 0x12 },
- { "AF22", 0x14 },
- { "AF23", 0x16 },
- { "AF31", 0x1A },
- { "AF32", 0x1C },
- { "AF33", 0x1E },
- { "AF41", 0x22 },
- { "AF42", 0x24 },
- { "AF43", 0x26 },
- { "EF", 0x2E },
-};
-
-int ast_str2tos(const char *value, unsigned int *tos)
-{
- int fval;
- unsigned int x;
-
- if (sscanf(value, "%i", &fval) == 1) {
- *tos = fval & 0xFF;
- return 0;
- }
-
- for (x = 0; x < sizeof(dscp_pool1) / sizeof(dscp_pool1[0]); x++) {
- if (!strcasecmp(value, dscp_pool1[x].name)) {
- *tos = dscp_pool1[x].space << 2;
- return 0;
- }
- }
-
- 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;
-
- ast_log(LOG_WARNING, "TOS value %s is deprecated. Please see doc/ip-tos.txt for more information.\n", value);
-
- return 0;
-}
-
-const char *ast_tos2str(unsigned int tos)
-{
- unsigned int x;
-
- switch (tos) {
- case 0:
- return "none";
- case IPTOS_LOWDELAY:
- return "lowdelay";
- case IPTOS_THROUGHPUT:
- return "throughput";
- case IPTOS_RELIABILITY:
- return "reliability";
- case IPTOS_MINCOST:
- return "mincost";
- default:
- for (x = 0; x < sizeof(dscp_pool1) / sizeof(dscp_pool1[0]); x++) {
- if (dscp_pool1[x].space == (tos >> 2))
- return dscp_pool1[x].name;
- }
- }
-
- return "unknown";
-}
-
-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 get_local_address(ourip);
-}
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-26 23:32:25 +0000