X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Fnetwork.c;h=1e6ef14f33d4ed1fda498872ffe7f281b4514fbd;hb=2b55b3c91907f1b95c59f2661448c336e51b61ce;hp=16ff12d1c48664cc8f49d795ba88120f325eec81;hpb=33542aa99bfd8181f6e2f66fff6c59b843d6cf4e;p=collectd.git

diff --git a/src/network.c b/src/network.c
index 16ff12d1..1e6ef14f 100644
--- a/src/network.c
+++ b/src/network.c
@@ -113,6 +113,7 @@ struct sockent_client {
 #endif
   cdtime_t next_resolve_reconnect;
   cdtime_t resolve_interval;
+  struct sockaddr_storage *bind_addr;
 };
 
 struct sockent_server {
@@ -134,7 +135,6 @@ typedef struct sockent {
   char *node;
   char *service;
   int interface;
-  struct sockaddr_storage *bind_address;
 
   union {
     struct sockent_client client;
@@ -1502,6 +1502,7 @@ static void free_sockent_client(struct sockent_client *sec) /* {{{ */
     sec->fd = -1;
   }
   sfree(sec->addr);
+  sfree(sec->bind_addr);
 #if HAVE_GCRYPT_H
   sfree(sec->username);
   sfree(sec->password);
@@ -1687,35 +1688,38 @@ static int network_set_interface(const sockent_t *se,
 static int network_bind_socket_to_addr(sockent_t *se,
                                        const struct addrinfo *ai) {
 
-  if (se->bind_address == NULL)
+  if (se->data.client.bind_addr == NULL)
     return 0;
 
-  DEBUG("fd %i: bind socket to address", se->data.client.fd);
+  ERROR("network plugin: failed to bind client socket (ipvX) to %s: %s", pbuffer, STRERRNO);
   char pbuffer[64];
 
   if (ai->ai_family == AF_INET) {
-    struct sockaddr_in *addr = (struct sockaddr_in *)(se->bind_address);
+    struct sockaddr_in *addr =
+        (struct sockaddr_in *)(se->data.client.bind_addr);
     inet_ntop(AF_INET, &(addr->sin_addr), pbuffer, 64);
-    INFO("binding client socket to ipv4 address: %s", pbuffer);
+    DEBUG("network_plugin: binding client socket to ipv4 address: %s", pbuffer);
     if (bind(se->data.client.fd, (struct sockaddr *)addr, sizeof(*addr)) ==
         -1) {
-      ERROR("network_bind_socket_to_addr: %s", STRERRNO);
+      ERROR("network_plugin: failed to bind client socket (ipv4): %s",
+            STRERRNO);
       return -1;
     }
   } else if (ai->ai_family == AF_INET6) {
-    struct sockaddr_in6 *addr = (struct sockaddr_in6 *)(se->bind_address);
-    inet_ntop(AF_INET, &(addr->sin6_addr), pbuffer, 64);
-    INFO("binding client socket to ipv6 address: %s", pbuffer);
+    struct sockaddr_in6 *addr =
+        (struct sockaddr_in6 *)(se->data.client.bind_addr);
+    inet_ntop(AF_INET6, &(addr->sin6_addr), pbuffer, 64);
+    DEBUG("network_plugin: binding client socket to ipv6 address: %s", pbuffer);
     if (bind(se->data.client.fd, (struct sockaddr *)addr, sizeof(*addr)) ==
         -1) {
-      ERROR("network_bind_socket_to_addr: %s", STRERRNO);
+      ERROR("network_plugin: failed to bind client socket (ipv6): %s",
+            STRERRNO);
       return -1;
     }
   }
 
   return 0;
-}
-/* int network_bind_socket_to_addr */
+} /* int network_bind_socket_to_addr */
 
 static int network_bind_socket(int fd, const struct addrinfo *ai,
                                const int interface_idx) {
@@ -1854,7 +1858,6 @@ static sockent_t *sockent_create(int type) /* {{{ */
   se->node = NULL;
   se->service = NULL;
   se->interface = 0;
-  se->bind_address = NULL;
   se->next = NULL;
 
   if (type == SOCKENT_TYPE_SERVER) {
@@ -1869,6 +1872,7 @@ static sockent_t *sockent_create(int type) /* {{{ */
   } else {
     se->data.client.fd = -1;
     se->data.client.addr = NULL;
+    se->data.client.bind_addr = NULL;
     se->data.client.resolve_interval = 0;
     se->data.client.next_resolve_reconnect = 0;
 #if HAVE_GCRYPT_H
@@ -2723,25 +2727,35 @@ static int network_config_set_interface(const oconfig_item_t *ci, /* {{{ */
 static int
 network_config_set_bind_address(const oconfig_item_t *ci,
                                 struct sockaddr_storage **bind_address) {
+  if ((*bind_address) != NULL) {
+    ERROR("network_plugin: only a single bind address is allowed");
+    return -1;
+  }
+
   char addr_text[256];
 
   if (cf_util_get_string_buffer(ci, addr_text, sizeof(addr_text)) != 0)
     return -1;
 
   int ret;
-  struct addrinfo hint, *res = NULL;
-
-  memset(&hint, '\0', sizeof hint);
-  hint.ai_family = PF_UNSPEC;
-  hint.ai_flags = AI_NUMERICHOST;
+  struct addrinfo *res = NULL;
+  struct addrinfo ai_hints = {.ai_family = AF_UNSPEC,
+                              .ai_flags = AI_NUMERICHOST,
+                              .ai_protocol = IPPROTO_UDP,
+                              .ai_socktype = SOCK_DGRAM};
 
-  ret = getaddrinfo(addr_text, NULL, &hint, &res);
+  ret = getaddrinfo(addr_text, NULL, &ai_hints, &res);
   if (ret) {
-    ERROR("Invalid address");
-    return 1;
+    ERROR("network plugin: Bind address option has invalid address set: %s",
+          gai_strerror(ret));
+    return -1;
   }
 
   *bind_address = malloc(sizeof(**bind_address));
+  if (*bind_address == NULL) {
+    ERROR("network plugin: network_config_set_bind_address: malloc failed.");
+    return -1;
+  }
   (*bind_address)->ss_family = res->ai_family;
   if (res->ai_family == AF_INET) {
     struct sockaddr_in *addr = (struct sockaddr_in *)(*bind_address);
@@ -2750,9 +2764,14 @@ network_config_set_bind_address(const oconfig_item_t *ci,
     struct sockaddr_in6 *addr = (struct sockaddr_in6 *)(*bind_address);
     inet_pton(AF_INET6, addr_text, &(addr->sin6_addr));
   } else {
-    ERROR("%s is an unknown address format %d\n", addr_text, res->ai_family);
+    ERROR("network plugin: %s is an unknown address format %d\n", addr_text,
+          res->ai_family);
+    sfree(*bind_address);
+    freeaddrinfo(res);
+    return -1;
   }
 
+  freeaddrinfo(res);
   return 0;
 } /* int network_config_set_bind_address */
 
@@ -2916,7 +2935,7 @@ static int network_config_add_server(const oconfig_item_t *ci) /* {{{ */
         if (strcasecmp("Interface", child->key) == 0)
       network_config_set_interface(child, &se->interface);
     else if (strcasecmp("BindAddress", child->key) == 0)
-      network_config_set_bind_address(child, &se->bind_address);
+      network_config_set_bind_address(child, &se->data.client.bind_addr);
     else if (strcasecmp("ResolveInterval", child->key) == 0)
       cf_util_get_cdtime(child, &se->data.client.resolve_interval);
     else {