diff options
Diffstat (limited to 'lib/socket.h')
| -rw-r--r-- | lib/socket.h | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/lib/socket.h b/lib/socket.h index 780d596b..894d5561 100644 --- a/lib/socket.h +++ b/lib/socket.h @@ -57,6 +57,9 @@ int sk_open(sock *); /* Open socket */ int sk_send(sock *, unsigned len); /* Send data, <0=err, >0=ok, 0=sleep */ int sk_send_to(sock *, unsigned len, ip_addr to, unsigned port); /* sk_send to given destination */ void sk_reallocate(sock *); /* Free and allocate tbuf & rbuf */ +void sk_set_rbsize(sock *s, uint val); /* Resize RX buffer */ +void sk_set_tbsize(sock *s, uint val); /* Resize TX buffer, keeping content */ +void sk_set_tbuf(sock *s, void *tbuf); /* Switch TX buffer, NULL-> return to internal */ void sk_dump_all(void); int sk_set_ttl(sock *s, int ttl); /* Set transmit TTL for given socket */ int sk_set_min_ttl(sock *s, int ttl); /* Set minimal accepted TTL for given socket */ @@ -89,10 +92,13 @@ extern int sk_priority_control; /* Suggested priority for control traffic, shoul #define SKF_V6ONLY 1 /* Use IPV6_V6ONLY socket option */ #define SKF_LADDR_RX 2 /* Report local address for RX packets */ -#define SKF_LADDR_TX 4 /* Allow to specify local address for TX packets */ -#define SKF_TTL_RX 8 /* Report TTL / Hop Limit for RX packets */ +#define SKF_TTL_RX 4 /* Report TTL / Hop Limit for RX packets */ +#define SKF_BIND 8 /* Bind datagram socket to given source address */ #define SKF_THREAD 0x100 /* Socked used in thread, Do not add to main loop */ +#define SKF_TRUNCATED 0x200 /* Received packet was truncated, set by IO layer */ +#define SKF_HDRINCL 0x400 /* Used internally */ +#define SKF_PKTINFO 0x800 /* Used internally */ /* * Socket types SA SP DA DP IF TTL SendTo (?=may, -=must not, *=must) @@ -118,6 +124,14 @@ extern int sk_priority_control; /* Suggested priority for control traffic, shoul * call sk_setup_multicast() to enable multicast on that socket, * and then use sk_join_group() and sk_leave_group() to manage * a set of received multicast groups. + * + * For datagram (SK_UDP, SK_IP) sockets, there are two ways to handle + * source address. The socket could be bound to it using bind() + * syscall, but that also forbids the reception of multicast packets, + * or the address could be set on per-packet basis using platform + * dependent options (but these are not available in some corner + * cases). The first way is used when SKF_BIND is specified, the + * second way is used otherwise. */ #endif |