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authorAndrew Bartlett <abartlet@samba.org>2011-05-02 16:23:40 +1000
committerAndrew Bartlett <abartlet@samba.org>2011-05-03 07:37:07 +0200
commiteea783e04cca45b1d3d9e5bb10556a2c8dc79b86 (patch)
tree16a08673daaa24515b2cc4e251b5c66f92112104 /lib/util
parent4d0268dce4eb5210ee73efdb6c82aa899b27008f (diff)
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lib/util Move set_socket_options() into common code.
Diffstat (limited to 'lib/util')
-rw-r--r--lib/util/util_net.c161
-rw-r--r--lib/util/util_net.h2
2 files changed, 163 insertions, 0 deletions
diff --git a/lib/util/util_net.c b/lib/util/util_net.c
index e80447128f..a8a05da138 100644
--- a/lib/util/util_net.c
+++ b/lib/util/util_net.c
@@ -695,3 +695,164 @@ const char *client_socket_addr(int fd, char *addr, size_t addr_len)
{
return get_socket_addr(fd, addr, addr_len);
}
+
+
+enum SOCK_OPT_TYPES {OPT_BOOL,OPT_INT,OPT_ON};
+
+typedef struct smb_socket_option {
+ const char *name;
+ int level;
+ int option;
+ int value;
+ int opttype;
+} smb_socket_option;
+
+static const smb_socket_option socket_options[] = {
+ {"SO_KEEPALIVE", SOL_SOCKET, SO_KEEPALIVE, 0, OPT_BOOL},
+ {"SO_REUSEADDR", SOL_SOCKET, SO_REUSEADDR, 0, OPT_BOOL},
+ {"SO_BROADCAST", SOL_SOCKET, SO_BROADCAST, 0, OPT_BOOL},
+#ifdef TCP_NODELAY
+ {"TCP_NODELAY", IPPROTO_TCP, TCP_NODELAY, 0, OPT_BOOL},
+#endif
+#ifdef TCP_KEEPCNT
+ {"TCP_KEEPCNT", IPPROTO_TCP, TCP_KEEPCNT, 0, OPT_INT},
+#endif
+#ifdef TCP_KEEPIDLE
+ {"TCP_KEEPIDLE", IPPROTO_TCP, TCP_KEEPIDLE, 0, OPT_INT},
+#endif
+#ifdef TCP_KEEPINTVL
+ {"TCP_KEEPINTVL", IPPROTO_TCP, TCP_KEEPINTVL, 0, OPT_INT},
+#endif
+#ifdef IPTOS_LOWDELAY
+ {"IPTOS_LOWDELAY", IPPROTO_IP, IP_TOS, IPTOS_LOWDELAY, OPT_ON},
+#endif
+#ifdef IPTOS_THROUGHPUT
+ {"IPTOS_THROUGHPUT", IPPROTO_IP, IP_TOS, IPTOS_THROUGHPUT, OPT_ON},
+#endif
+#ifdef SO_REUSEPORT
+ {"SO_REUSEPORT", SOL_SOCKET, SO_REUSEPORT, 0, OPT_BOOL},
+#endif
+#ifdef SO_SNDBUF
+ {"SO_SNDBUF", SOL_SOCKET, SO_SNDBUF, 0, OPT_INT},
+#endif
+#ifdef SO_RCVBUF
+ {"SO_RCVBUF", SOL_SOCKET, SO_RCVBUF, 0, OPT_INT},
+#endif
+#ifdef SO_SNDLOWAT
+ {"SO_SNDLOWAT", SOL_SOCKET, SO_SNDLOWAT, 0, OPT_INT},
+#endif
+#ifdef SO_RCVLOWAT
+ {"SO_RCVLOWAT", SOL_SOCKET, SO_RCVLOWAT, 0, OPT_INT},
+#endif
+#ifdef SO_SNDTIMEO
+ {"SO_SNDTIMEO", SOL_SOCKET, SO_SNDTIMEO, 0, OPT_INT},
+#endif
+#ifdef SO_RCVTIMEO
+ {"SO_RCVTIMEO", SOL_SOCKET, SO_RCVTIMEO, 0, OPT_INT},
+#endif
+#ifdef TCP_FASTACK
+ {"TCP_FASTACK", IPPROTO_TCP, TCP_FASTACK, 0, OPT_INT},
+#endif
+#ifdef TCP_QUICKACK
+ {"TCP_QUICKACK", IPPROTO_TCP, TCP_QUICKACK, 0, OPT_BOOL},
+#endif
+#ifdef TCP_KEEPALIVE_THRESHOLD
+ {"TCP_KEEPALIVE_THRESHOLD", IPPROTO_TCP, TCP_KEEPALIVE_THRESHOLD, 0, OPT_INT},
+#endif
+#ifdef TCP_KEEPALIVE_ABORT_THRESHOLD
+ {"TCP_KEEPALIVE_ABORT_THRESHOLD", IPPROTO_TCP, TCP_KEEPALIVE_ABORT_THRESHOLD, 0, OPT_INT},
+#endif
+ {NULL,0,0,0,0}};
+
+/****************************************************************************
+ Print socket options.
+****************************************************************************/
+
+static void print_socket_options(int s)
+{
+ int value;
+ socklen_t vlen = 4;
+ const smb_socket_option *p = &socket_options[0];
+
+ /* wrapped in if statement to prevent streams
+ * leak in SCO Openserver 5.0 */
+ /* reported on samba-technical --jerry */
+ if ( DEBUGLEVEL >= 5 ) {
+ DEBUG(5,("Socket options:\n"));
+ for (; p->name != NULL; p++) {
+ if (getsockopt(s, p->level, p->option,
+ (void *)&value, &vlen) == -1) {
+ DEBUGADD(5,("\tCould not test socket option %s.\n",
+ p->name));
+ } else {
+ DEBUGADD(5,("\t%s = %d\n",
+ p->name,value));
+ }
+ }
+ }
+ }
+
+/****************************************************************************
+ Set user socket options.
+****************************************************************************/
+
+void set_socket_options(int fd, const char *options)
+{
+ TALLOC_CTX *ctx = talloc_new(NULL);
+ char *tok;
+
+ while (next_token_talloc(ctx, &options, &tok," \t,")) {
+ int ret=0,i;
+ int value = 1;
+ char *p;
+ bool got_value = false;
+
+ if ((p = strchr_m(tok,'='))) {
+ *p = 0;
+ value = atoi(p+1);
+ got_value = true;
+ }
+
+ for (i=0;socket_options[i].name;i++)
+ if (strequal(socket_options[i].name,tok))
+ break;
+
+ if (!socket_options[i].name) {
+ DEBUG(0,("Unknown socket option %s\n",tok));
+ continue;
+ }
+
+ switch (socket_options[i].opttype) {
+ case OPT_BOOL:
+ case OPT_INT:
+ ret = setsockopt(fd,socket_options[i].level,
+ socket_options[i].option,
+ (char *)&value,sizeof(int));
+ break;
+
+ case OPT_ON:
+ if (got_value)
+ DEBUG(0,("syntax error - %s "
+ "does not take a value\n",tok));
+
+ {
+ int on = socket_options[i].value;
+ ret = setsockopt(fd,socket_options[i].level,
+ socket_options[i].option,
+ (char *)&on,sizeof(int));
+ }
+ break;
+ }
+
+ if (ret != 0) {
+ /* be aware that some systems like Solaris return
+ * EINVAL to a setsockopt() call when the client
+ * sent a RST previously - no need to worry */
+ DEBUG(2,("Failed to set socket option %s (Error %s)\n",
+ tok, strerror(errno) ));
+ }
+ }
+
+ TALLOC_FREE(ctx);
+ print_socket_options(fd);
+}
diff --git a/lib/util/util_net.h b/lib/util/util_net.h
index 71d1d1a6bd..38b6d5a959 100644
--- a/lib/util/util_net.h
+++ b/lib/util/util_net.h
@@ -108,4 +108,6 @@ const char *client_name(int fd);
int get_socket_port(int fd);
const char *client_socket_addr(int fd, char *addr, size_t addr_len);
+void set_socket_options(int fd, const char *options);
+
#endif /* _SAMBA_UTIL_NET_H_ */