Merge branch 'mainstream'

[sliver-openvswitch.git] / lib / socket-util.h

diff --git a/lib/socket-util.h b/lib/socket-util.h
index e2e0d9a..670eeb3 100644 (file)
--- a/lib/socket-util.h
+++ b/lib/socket-util.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira, Inc.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,10 +23,12 @@
 #include <netinet/in.h>
 #include <stdbool.h>
 #include "openvswitch/types.h"
+#include <netinet/in_systm.h>
 #include <netinet/ip.h>
 
 int set_nonblocking(int fd);
 void xset_nonblocking(int fd);
+int set_dscp(int fd, uint8_t dscp);
 
 int get_max_fds(void);
 
@@ -35,7 +37,6 @@ int lookup_ipv6(const char *host_name, struct in6_addr *address);
 
 int lookup_hostname(const char *host_name, struct in_addr *);
 
-int get_socket_error(int sock);
 int get_socket_rcvbuf(int sock);
 int check_connection_completion(int fd);
 int drain_rcvbuf(int fd);
@@ -63,6 +64,7 @@ int fsync_parent_dir(const char *file_name);
 int get_mtime(const char *file_name, struct timespec *mtime);
 
 void xpipe(int fds[2]);
+void xpipe_nonblocking(int fds[2]);
 
 char *describe_fd(int fd);
 
@@ -71,4 +73,34 @@ char *describe_fd(int fd);
  * in <netinet/ip.h> is used. */
 #define DSCP_DEFAULT (IPTOS_PREC_INTERNETCONTROL >> 2)
 
+/* Maximum number of fds that we support sending or receiving at one time
+ * across a Unix domain socket. */
+#define SOUTIL_MAX_FDS 8
+
+/* Iovecs. */
+size_t iovec_len(const struct iovec *iovs, size_t n_iovs);
+bool iovec_is_empty(const struct iovec *iovs, size_t n_iovs);
+
+/* Functions particularly useful for Unix domain sockets. */
+void xsocketpair(int domain, int type, int protocol, int fds[2]);
+int send_iovec_and_fds(int sock,
+                       const struct iovec *iovs, size_t n_iovs,
+                       const int fds[], size_t n_fds);
+int send_iovec_and_fds_fully(int sock,
+                             const struct iovec *iovs, size_t n_iovs,
+                             const int fds[], size_t n_fds,
+                             size_t skip_bytes, size_t *bytes_sent);
+int send_iovec_and_fds_fully_block(int sock,
+                                   const struct iovec *iovs, size_t n_iovs,
+                                   const int fds[], size_t n_fds);
+int recv_data_and_fds(int sock,
+                      void *data, size_t size,
+                      int fds[SOUTIL_MAX_FDS], size_t *n_fdsp);
+
+/* Helpers for calling ioctl() on an AF_INET socket. */
+struct ifreq;
+int af_inet_ioctl(unsigned long int command, const void *arg);
+int af_inet_ifreq_ioctl(const char *name, struct ifreq *,
+                        unsigned long int cmd, const char *cmd_name);
+
 #endif /* socket-util.h */