diff options
Diffstat (limited to 'xlators')
| -rw-r--r-- | xlators/mgmt/glusterd/src/glusterd-utils.c | 137 |
1 files changed, 73 insertions, 64 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-utils.c b/xlators/mgmt/glusterd/src/glusterd-utils.c index 7746ec49c23..0634c4b30f9 100644 --- a/xlators/mgmt/glusterd/src/glusterd-utils.c +++ b/xlators/mgmt/glusterd/src/glusterd-utils.c @@ -81,6 +81,43 @@ glusterd_unset_lock_owner (uuid_t owner) return 0; } +gf_boolean_t +glusterd_is_loopback_localhost (const struct sockaddr *sa, char *hostname) +{ + GF_ASSERT (sa); + + gf_boolean_t is_local = _gf_false; + const struct in_addr *addr4 = NULL; + const struct in6_addr *addr6 = NULL; + uint8_t *ap = NULL; + struct in6_addr loopbackaddr6 = IN6ADDR_LOOPBACK_INIT; + + switch (sa->sa_family) { + case AF_INET: + addr4 = &(((struct sockaddr_in *)sa)->sin_addr); + ap = (uint8_t*)&addr4->s_addr; + if (ap[0] == 127) + is_local = _gf_true; + break; + + case AF_INET6: + addr6 = &(((struct sockaddr_in6 *)sa)->sin6_addr); + if (memcmp (addr6, &loopbackaddr6, + sizeof (loopbackaddr6)) == 0) + is_local = _gf_true; + break; + + default: + if (hostname) + gf_log ("glusterd", GF_LOG_ERROR, + "unknown address family %d for %s", + sa->sa_family, hostname); + break; + } + + return is_local; +} + int32_t glusterd_is_local_addr (char *hostname) { @@ -89,22 +126,10 @@ glusterd_is_local_addr (char *hostname) struct addrinfo *res = NULL; int32_t found = 0; struct ifconf buf = {0,}; - char nodename[256] = {0,}; - - if ((!strcmp (hostname, "localhost")) || - (!strcmp (hostname, "127.0.0.1"))) { - found = 1; - goto out; - } - - ret = gethostname (nodename, 256); - if (ret) - goto out; - - if ((!strcmp (nodename, hostname))) { - found = 1; - goto out; - } + int sd = -1; + struct ifreq *ifr = NULL; + int32_t size = 0; + int32_t num_req = 0; ret = getaddrinfo (hostname, NULL, NULL, &result); @@ -115,82 +140,66 @@ glusterd_is_local_addr (char *hostname) } for (res = result; res != NULL; res = res->ai_next) { - char hname[1024] = ""; - - ret = getnameinfo (res->ai_addr, res->ai_addrlen, hname, - NI_MAXHOST, NULL, 0, NI_NUMERICHOST); - if (ret) + found = glusterd_is_loopback_localhost (res->ai_addr, hostname); + if (found) goto out; - - if (!strncasecmp (hname, "127", 3)) { - ret = 0; - gf_log ("", GF_LOG_NORMAL, "local addr found"); - found = 1; - break; - } } - if (!found) { - int sd = -1; - struct ifreq *ifr = NULL; - int32_t size = 0; - int32_t num_req = 0; - struct sockaddr_in sa = {0,}; - sd = socket (PF_UNIX, SOCK_DGRAM, 0); - if (sd == -1) - goto out; + sd = socket (PF_UNIX, SOCK_DGRAM, 0); + if (sd == -1) + goto out; + + buf.ifc_len = sizeof (struct ifreq); + buf.ifc_req = GF_CALLOC (1, sizeof (struct ifreq), + gf_gld_mt_ifreq); + size = buf.ifc_len; - buf.ifc_len = sizeof (struct ifreq); - buf.ifc_req = GF_CALLOC (1, sizeof (struct ifreq), - gf_gld_mt_ifreq); - size = buf.ifc_len; + ret = ioctl (sd, SIOCGIFCONF, &buf); + if (ret) { + goto out; + } + while (size <= buf.ifc_len) { + size += sizeof (struct ifreq); + buf.ifc_len = size; + buf.ifc_req = GF_REALLOC (buf.ifc_req, size); ret = ioctl (sd, SIOCGIFCONF, &buf); if (ret) { - close (sd); goto out; } + } - while (size <= buf.ifc_len) { - size += sizeof (struct ifreq); - buf.ifc_len = size; - buf.ifc_req = GF_REALLOC (buf.ifc_req, size); - ret = ioctl (sd, SIOCGIFCONF, &buf); - if (ret) { - close (sd); - goto out; - } - } - + for (res = result; res != NULL; res = res->ai_next) { ifr = buf.ifc_req; num_req = size / sizeof (struct ifreq) - 1; while (num_req--) { - char *addr = inet_ntoa ( *(struct in_addr *) - &ifr->ifr_addr.sa_data[sizeof(sa.sin_port)]); - if (!strcmp (addr, hostname)) { - gf_log ("", GF_LOG_DEBUG, "%s found as local", - addr); + if ((ifr->ifr_addr.sa_family == res->ai_addr->sa_family) + && (memcmp (&ifr->ifr_addr, res->ai_addr, + res->ai_addrlen) == 0)) { found = 1; + goto out; } ifr++; } - - if (sd > 0) - close (sd); } - - - out: + if (sd >= 0) + close (sd); + if (result) freeaddrinfo (result); if (buf.ifc_req) GF_FREE (buf.ifc_req); + if (found) + gf_log ("glusterd", GF_LOG_DEBUG, "%s is local", hostname); + else + gf_log ("glusterd", GF_LOG_DEBUG, "%s is not local", hostname); + return !found; } |