/** \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.
*/
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.
*
* 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);
/**
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);