diff options
Diffstat (limited to 'source3/lib/util_sock.c')
| -rw-r--r-- | source3/lib/util_sock.c | 428 |
1 files changed, 18 insertions, 410 deletions
diff --git a/source3/lib/util_sock.c b/source3/lib/util_sock.c index f3dc3fc1d1..667dbf6dad 100644 --- a/source3/lib/util_sock.c +++ b/source3/lib/util_sock.c @@ -21,188 +21,6 @@ #include "includes.h" -/**************************************************************************** - Return true if a string could be an IPv4 address. -****************************************************************************/ - -bool is_ipaddress_v4(const char *str) -{ - int ret = -1; - struct in_addr dest; - - ret = inet_pton(AF_INET, str, &dest); - if (ret > 0) { - return true; - } - return false; -} - -/**************************************************************************** - Return true if a string could be an IPv4 or IPv6 address. -****************************************************************************/ - -bool is_ipaddress(const char *str) -{ -#if defined(HAVE_IPV6) - int ret = -1; - - if (strchr_m(str, ':')) { - char addr[INET6_ADDRSTRLEN]; - struct in6_addr dest6; - const char *sp = str; - char *p = strchr_m(str, '%'); - - /* - * Cope with link-local. - * This is IP:v6:addr%ifname. - */ - - if (p && (p > str) && (if_nametoindex(p+1) != 0)) { - strlcpy(addr, str, - MIN(PTR_DIFF(p,str)+1, - sizeof(addr))); - sp = addr; - } - ret = inet_pton(AF_INET6, sp, &dest6); - if (ret > 0) { - return true; - } - } -#endif - return is_ipaddress_v4(str); -} - -/**************************************************************************** - Is a sockaddr_storage a broadcast address ? -****************************************************************************/ - -bool is_broadcast_addr(const struct sockaddr_storage *pss) -{ -#if defined(HAVE_IPV6) - if (pss->ss_family == AF_INET6) { - const struct in6_addr *sin6 = - &((const struct sockaddr_in6 *)pss)->sin6_addr; - return IN6_IS_ADDR_MULTICAST(sin6); - } -#endif - if (pss->ss_family == AF_INET) { - uint32_t addr = - ntohl(((const struct sockaddr_in *)pss)->sin_addr.s_addr); - return addr == INADDR_BROADCAST; - } - return false; -} - -/******************************************************************* - Wrap getaddrinfo... -******************************************************************/ - -static bool interpret_string_addr_internal(struct addrinfo **ppres, - const char *str, int flags) -{ - int ret; - struct addrinfo hints; - - memset(&hints, '\0', sizeof(hints)); - /* By default make sure it supports TCP. */ - hints.ai_socktype = SOCK_STREAM; - hints.ai_flags = flags; - - /* Linux man page on getaddinfo() says port will be - uninitialized when service string in NULL */ - - ret = getaddrinfo(str, NULL, - &hints, - ppres); - - if (ret) { - DEBUG(3,("interpret_string_addr_internal: getaddrinfo failed " - "for name %s [%s]\n", - str, - gai_strerror(ret) )); - return false; - } - return true; -} - -/**************************************************************************** - Interpret an internet address or name into an IP address in 4 byte form. - RETURNS IN NETWORK BYTE ORDER (big endian). -****************************************************************************/ - -uint32 interpret_addr(const char *str) -{ - uint32 ret; - - /* If it's in the form of an IP address then - * get the lib to interpret it */ - if (is_ipaddress_v4(str)) { - struct in_addr dest; - - if (inet_pton(AF_INET, str, &dest) <= 0) { - /* Error - this shouldn't happen ! */ - DEBUG(0,("interpret_addr: inet_pton failed " - "host %s\n", - str)); - return 0; - } - ret = dest.s_addr; /* NETWORK BYTE ORDER ! */ - } else { - /* Otherwise assume it's a network name of some sort and use - getadddrinfo. */ - struct addrinfo *res = NULL; - struct addrinfo *res_list = NULL; - if (!interpret_string_addr_internal(&res_list, - str, - AI_ADDRCONFIG)) { - DEBUG(3,("interpret_addr: Unknown host. %s\n",str)); - return 0; - } - - /* Find the first IPv4 address. */ - for (res = res_list; res; res = res->ai_next) { - if (res->ai_family != AF_INET) { - continue; - } - if (res->ai_addr == NULL) { - continue; - } - break; - } - if(res == NULL) { - DEBUG(3,("interpret_addr: host address is " - "invalid for host %s\n",str)); - if (res_list) { - freeaddrinfo(res_list); - } - return 0; - } - putip((char *)&ret, - &((struct sockaddr_in *)res->ai_addr)->sin_addr.s_addr); - if (res_list) { - freeaddrinfo(res_list); - } - } - - /* This is so bogus - all callers need fixing... JRA. */ - if (ret == (uint32)-1) { - return 0; - } - - return ret; -} - -/******************************************************************* - A convenient addition to interpret_addr(). -******************************************************************/ - -struct in_addr *interpret_addr2(struct in_addr *ip, const char *str) -{ - uint32 a = interpret_addr(str); - ip->s_addr = a; - return ip; -} - /******************************************************************* Map a text hostname or IP address (IPv4 or IPv6) into a struct sockaddr_storage. @@ -260,77 +78,6 @@ bool interpret_string_addr(struct sockaddr_storage *pss, } /******************************************************************* - Check if an IPv7 is 127.0.0.1 -******************************************************************/ - -bool is_loopback_ip_v4(struct in_addr ip) -{ - struct in_addr a; - a.s_addr = htonl(INADDR_LOOPBACK); - return(ip.s_addr == a.s_addr); -} - -/******************************************************************* - Check if a struct sockaddr_storage is the loopback address. -******************************************************************/ - -bool is_loopback_addr(const struct sockaddr_storage *pss) -{ -#if defined(HAVE_IPV6) - if (pss->ss_family == AF_INET6) { - struct in6_addr *pin6 = - &((struct sockaddr_in6 *)pss)->sin6_addr; - return IN6_IS_ADDR_LOOPBACK(pin6); - } -#endif - if (pss->ss_family == AF_INET) { - struct in_addr *pin = &((struct sockaddr_in *)pss)->sin_addr; - return is_loopback_ip_v4(*pin); - } - return false; -} - -/******************************************************************* - Check if an IPv4 is 0.0.0.0. -******************************************************************/ - -bool is_zero_ip_v4(struct in_addr ip) -{ - uint32 a; - putip((char *)&a,(char *)&ip); - return(a == 0); -} - -/******************************************************************* - Check if a struct sockaddr_storage has an unspecified address. -******************************************************************/ - -bool is_zero_addr(const struct sockaddr_storage *pss) -{ -#if defined(HAVE_IPV6) - if (pss->ss_family == AF_INET6) { - struct in6_addr *pin6 = - &((struct sockaddr_in6 *)pss)->sin6_addr; - return IN6_IS_ADDR_UNSPECIFIED(pin6); - } -#endif - if (pss->ss_family == AF_INET) { - struct in_addr *pin = &((struct sockaddr_in *)pss)->sin_addr; - return is_zero_ip_v4(*pin); - } - return false; -} - -/******************************************************************* - Set an IP to 0.0.0.0. -******************************************************************/ - -void zero_ip_v4(struct in_addr *ip) -{ - memset(ip, '\0', sizeof(struct in_addr)); -} - -/******************************************************************* Set an address to INADDR_ANY. ******************************************************************/ @@ -341,144 +88,6 @@ void zero_addr(struct sockaddr_storage *pss) pss->ss_family = AF_INET; } -/******************************************************************* - Are two IPs on the same subnet - IPv4 version ? -********************************************************************/ - -bool same_net_v4(struct in_addr ip1,struct in_addr ip2,struct in_addr mask) -{ - uint32 net1,net2,nmask; - - nmask = ntohl(mask.s_addr); - net1 = ntohl(ip1.s_addr); - net2 = ntohl(ip2.s_addr); - - return((net1 & nmask) == (net2 & nmask)); -} - -/******************************************************************* - Convert an IPv4 struct in_addr to a struct sockaddr_storage. -********************************************************************/ - -void in_addr_to_sockaddr_storage(struct sockaddr_storage *ss, - struct in_addr ip) -{ - struct sockaddr_in *sa = (struct sockaddr_in *)ss; - memset(ss, '\0', sizeof(*ss)); - sa->sin_family = AF_INET; - sa->sin_addr = ip; -} - -#if defined(HAVE_IPV6) -/******************************************************************* - Convert an IPv6 struct in_addr to a struct sockaddr_storage. -********************************************************************/ - - void in6_addr_to_sockaddr_storage(struct sockaddr_storage *ss, - struct in6_addr ip) -{ - struct sockaddr_in6 *sa = (struct sockaddr_in6 *)ss; - memset(ss, '\0', sizeof(*ss)); - sa->sin6_family = AF_INET6; - sa->sin6_addr = ip; -} -#endif - -/******************************************************************* - Are two IPs on the same subnet? -********************************************************************/ - -bool same_net(const struct sockaddr_storage *ip1, - const struct sockaddr_storage *ip2, - const struct sockaddr_storage *mask) -{ - if (ip1->ss_family != ip2->ss_family) { - /* Never on the same net. */ - return false; - } - -#if defined(HAVE_IPV6) - if (ip1->ss_family == AF_INET6) { - struct sockaddr_in6 ip1_6 = *(struct sockaddr_in6 *)ip1; - struct sockaddr_in6 ip2_6 = *(struct sockaddr_in6 *)ip2; - struct sockaddr_in6 mask_6 = *(struct sockaddr_in6 *)mask; - char *p1 = (char *)&ip1_6.sin6_addr; - char *p2 = (char *)&ip2_6.sin6_addr; - char *m = (char *)&mask_6.sin6_addr; - int i; - - for (i = 0; i < sizeof(struct in6_addr); i++) { - *p1++ &= *m; - *p2++ &= *m; - m++; - } - return (memcmp(&ip1_6.sin6_addr, - &ip2_6.sin6_addr, - sizeof(struct in6_addr)) == 0); - } -#endif - if (ip1->ss_family == AF_INET) { - return same_net_v4(((const struct sockaddr_in *)ip1)->sin_addr, - ((const struct sockaddr_in *)ip2)->sin_addr, - ((const struct sockaddr_in *)mask)->sin_addr); - } - return false; -} - -/******************************************************************* - Are two sockaddr_storage's the same family and address ? Ignore port etc. -********************************************************************/ - -bool addr_equal(const struct sockaddr_storage *ip1, - const struct sockaddr_storage *ip2) -{ - if (ip1->ss_family != ip2->ss_family) { - /* Never the same. */ - return false; - } - -#if defined(HAVE_IPV6) - if (ip1->ss_family == AF_INET6) { - return (memcmp(&((const struct sockaddr_in6 *)ip1)->sin6_addr, - &((const struct sockaddr_in6 *)ip2)->sin6_addr, - sizeof(struct in6_addr)) == 0); - } -#endif - if (ip1->ss_family == AF_INET) { - return (memcmp(&((const struct sockaddr_in *)ip1)->sin_addr, - &((const struct sockaddr_in *)ip2)->sin_addr, - sizeof(struct in_addr)) == 0); - } - return false; -} - -/**************************************************************************** - Is an IP address the INADDR_ANY or in6addr_any value ? -****************************************************************************/ - -bool is_address_any(const struct sockaddr_storage *psa) -{ -#if defined(HAVE_IPV6) - if (psa->ss_family == AF_INET6) { - struct sockaddr_in6 *si6 = (struct sockaddr_in6 *)psa; - if (memcmp(&in6addr_any, - &si6->sin6_addr, - sizeof(in6addr_any)) == 0) { - return true; - } - return false; - } -#endif - if (psa->ss_family == AF_INET) { - struct sockaddr_in *si = (struct sockaddr_in *)psa; - if (si->sin_addr.s_addr == INADDR_ANY) { - return true; - } - return false; - } - return false; -} - /**************************************************************************** Get a port number in host byte order from a sockaddr_storage. ****************************************************************************/ @@ -508,13 +117,13 @@ uint16_t get_sockaddr_port(const struct sockaddr_storage *pss) static char *print_sockaddr_len(char *dest, size_t destlen, - const struct sockaddr_storage *psa, + const struct sockaddr *psa, socklen_t psalen) { if (destlen > 0) { dest[0] = '\0'; } - (void)sys_getnameinfo((const struct sockaddr *)psa, + (void)sys_getnameinfo(psa, psalen, dest, destlen, NULL, 0, @@ -530,7 +139,7 @@ char *print_sockaddr(char *dest, size_t destlen, const struct sockaddr_storage *psa) { - return print_sockaddr_len(dest, destlen, psa, + return print_sockaddr_len(dest, destlen, (struct sockaddr *)psa, sizeof(struct sockaddr_storage)); } @@ -596,7 +205,7 @@ static const char *get_socket_addr(int fd, char *addr_buf, size_t addr_len) return addr_buf; } - return print_sockaddr_len(addr_buf, addr_len, &sa, length); + return print_sockaddr_len(addr_buf, addr_len, (struct sockaddr *)&sa, length); } #if 0 @@ -1313,7 +922,7 @@ int open_socket_out(int type, psa6->sin6_port = htons(port); if (psa6->sin6_scope_id == 0 && IN6_IS_ADDR_LINKLOCAL(&psa6->sin6_addr)) { - setup_linklocal_scope_id(&sock_out); + setup_linklocal_scope_id((struct sockaddr *)&sock_out); } } #endif @@ -1555,7 +1164,7 @@ int open_udp_socket(const char *host, int port) int res; struct in_addr addr; - (void)interpret_addr2(&addr, host); + addr = interpret_addr2(host); res = socket(PF_INET, type, 0); if (res == -1) { @@ -1583,7 +1192,7 @@ int open_udp_socket(const char *host, int port) static const char *get_peer_addr_internal(int fd, char *addr_buf, size_t addr_buf_len, - struct sockaddr_storage *pss, + struct sockaddr *pss, socklen_t *plength) { struct sockaddr_storage ss; @@ -1596,9 +1205,7 @@ static const char *get_peer_addr_internal(int fd, } if (pss == NULL) { - pss = &ss; - } - if (plength == NULL) { + pss = (struct sockaddr *)&ss; plength = &length; } @@ -1621,7 +1228,7 @@ static const char *get_peer_addr_internal(int fd, ******************************************************************/ static bool matchname(const char *remotehost, - const struct sockaddr_storage *pss, + const struct sockaddr *pss, socklen_t len) { struct addrinfo *res = NULL; @@ -1659,8 +1266,8 @@ static bool matchname(const char *remotehost, if (!res->ai_addr) { continue; } - if (addr_equal((const struct sockaddr_storage *)res->ai_addr, - pss)) { + if (addr_equal((const struct sockaddr *)res->ai_addr, + (struct sockaddr *)pss)) { freeaddrinfo(ailist); return true; } @@ -1760,7 +1367,7 @@ const char *get_peer_name(int fd, bool force_lookup) if (!lp_hostname_lookups() && (force_lookup == false)) { length = sizeof(nc.ss); nc.name = get_peer_addr_internal(fd, addr_buf, sizeof(addr_buf), - &nc.ss, &length); + (struct sockaddr *)&nc.ss, &length); store_nc(&nc); lookup_nc(&nc); return nc.name ? nc.name : "UNKNOWN"; @@ -1769,10 +1376,10 @@ const char *get_peer_name(int fd, bool force_lookup) lookup_nc(&nc); memset(&ss, '\0', sizeof(ss)); - p = get_peer_addr_internal(fd, addr_buf, sizeof(addr_buf), &ss, &length); + p = get_peer_addr_internal(fd, addr_buf, sizeof(addr_buf), (struct sockaddr *)&ss, &length); /* it might be the same as the last one - save some DNS work */ - if (addr_equal(&ss, &nc.ss)) { + if (addr_equal((struct sockaddr *)&ss, (struct sockaddr *)&nc.ss)) { return nc.name ? nc.name : "UNKNOWN"; } @@ -1797,7 +1404,7 @@ const char *get_peer_name(int fd, bool force_lookup) gai_strerror(ret))); strlcpy(name_buf, p, sizeof(name_buf)); } else { - if (!matchname(name_buf, &ss, length)) { + if (!matchname(name_buf, (struct sockaddr *)&ss, length)) { DEBUG(0,("Matchname failed on %s %s\n",name_buf,p)); strlcpy(name_buf,"UNKNOWN",sizeof(name_buf)); } @@ -2080,7 +1687,8 @@ bool is_myname_or_ipaddr(const char *s) return false; } - if (is_zero_addr(&ss) || is_loopback_addr(&ss)) { + if (is_zero_addr((struct sockaddr *)&ss) || + is_loopback_addr((struct sockaddr *)&ss)) { return false; } @@ -2091,7 +1699,7 @@ bool is_myname_or_ipaddr(const char *s) } n = get_interfaces(nics, MAX_INTERFACES); for (i=0; i<n; i++) { - if (addr_equal(&nics[i].ip, &ss)) { + if (addr_equal((struct sockaddr *)&nics[i].ip, (struct sockaddr *)&ss)) { TALLOC_FREE(nics); return true; } |