07_flow-opt-support.diff

[paraslash.git] / net.h

diff --git a/net.h b/net.h
index 15412586583ae9398090f98a8bfee83b59a09d59..96fa07eeb43c4745687fd4efde9b7f16d4dabe5d 100644 (file)
--- a/net.h
+++ b/net.h
@@ -19,13 +19,34 @@
 
 /** \cond Userland defines for Linux DCCP support. */
 #ifndef IPPROTO_DCCP
-#define IPPROTO_DCCP   33      /**< IANA assigned value */
-#define SOCK_DCCP      6       /**< Linux socket type   */
-#define SOL_DCCP        269    /**< Linux socket level  */
+#define IPPROTO_DCCP   33      /* IANA assigned value */
+#define SOCK_DCCP      6       /* Linux socket type   */
+#define SOL_DCCP       269     /* Linux socket level  */
+/* Per-connection CCID support (since v2.6.30-rc1) */
+#define DCCP_SOCKOPT_AVAILABLE_CCIDS   12      /* List of supported CCIDs */
+#define DCCP_SOCKOPT_CCID              13      /* Sets both TX/RX CCID    */
+#define DCCP_SOCKOPT_TX_CCID           14      /* Set/get the TX CCID     */
+#define DCCP_SOCKOPT_RX_CCID           15      /* Set/get the RX CCID     */
 #endif
 /** \endcond */
 
 
+/**
+ * Flowopts: Transport-layer independent encapsulation of socket options
+ *           that need to be registered prior to setting up a connection.
+ */
+struct flowopts;
+
+extern struct flowopts *flowopt_new(void);
+extern void flowopt_add(struct flowopts *fo, int level, int opt,
+                       char *name, const void *val, int len);
+extern void flowopt_add_bool(struct flowopts *fo, int lev, int opt,
+                            char *optname, bool on_or_off);
+/** Flowopt shortcut macros */
+#define OPT_ADD(fo, lev, opt, val, len)        flowopt_add(fo, lev, opt, #opt, val, len)
+#define OPT_ENABLE(fo, lev, opt)       flowopt_add_bool(fo, lev, opt, #opt, 1)
+#define OPT_DISABLE(fo, lev, opt)      flowopt_add_bool(fo, lev, opt, #opt, 0)
+
 /**
  * Functions to parse and validate (parts of) URLs.
  */
@@ -33,6 +54,7 @@ extern char *parse_cidr(const char *cidr,
                        char *addr, ssize_t addrlen, int32_t *netmask);
 extern char *parse_url(const char *url,
                       char *host, ssize_t hostlen, int32_t *port);
+extern const char *stringify_port(int port, const char *transport);
 /**
  * Ensure that string conforms to the IPv4 address format.
  *
@@ -66,7 +88,8 @@ _static_inline_ bool is_valid_ipv6_address(const char *address)
  * Generic socket creation (passive and active sockets).
  */
 extern int makesock(unsigned l3type, unsigned l4type, int passive,
-                   const char *host, unsigned short port_number);
+                   const char *host, unsigned short port_number,
+                   struct flowopts *fo);
 extern struct in_addr extract_v4_addr(const struct sockaddr_storage *ss);
 
 /**
@@ -94,3 +117,10 @@ int create_remote_socket(const char *name);
 int recv_cred_buffer(int, char *, size_t);
 ssize_t send_cred_buffer(int, char*);
 int recv_pattern(int fd, const char *pattern, size_t bufsize);
+
+/**
+ * Functions and definitions to support \p IPPROTO_DCCP
+ */
+/** Hardcoded maximum number of separate CCID modules compiled into a host */
+#define DCCP_MAX_HOST_CCIDS    20
+extern const uint8_t *dccp_available_ccids(uint8_t *ccids, uint8_t *nccids);