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Added SK_MAGIC type sockets for internal use by system dependent code,

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especially for netlink communication.
This commit is contained in:
Martin Mares 1999-03-01 22:30:33 +00:00
parent c748cdb9ec
commit b4b3b39e20
2 changed files with 12 additions and 5 deletions
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3
lib/socket.h
View file

@ -1,7 +1,7 @@
/* /*
* BIRD Socket Interface * BIRD Socket Interface
* *
* (c) 1998 Martin Mares <mj@ucw.cz> * (c) 1998--1999 Martin Mares <mj@ucw.cz>
* *
* Can be freely distributed and used under the terms of the GNU GPL. * Can be freely distributed and used under the terms of the GNU GPL.
*/ */
@ -57,5 +57,6 @@ void sk_dump_all(void);
#define SK_UDP_MC 4 /* ? ? * * * * - */ #define SK_UDP_MC 4 /* ? ? * * * * - */
#define SK_IP 5 /* ? ? - * - ? ? */ #define SK_IP 5 /* ? ? - * - ? ? */
#define SK_IP_MC 6 /* ? ? * * * * - */ #define SK_IP_MC 6 /* ? ? * * * * - */
#define SK_MAGIC 7 /* Internal use by sysdep code */
#endif #endif

14
sysdep/unix/io.c
View file

@ -1,7 +1,7 @@
/* /*
* BIRD Internet Routing Daemon -- Unix I/O * BIRD Internet Routing Daemon -- Unix I/O
* *
* (c) 1998 Martin Mares <mj@ucw.cz> * (c) 1998--1999 Martin Mares <mj@ucw.cz>
* *
* Can be freely distributed and used under the terms of the GNU GPL. * Can be freely distributed and used under the terms of the GNU GPL.
*/ */
@ -231,7 +231,7 @@ static void
sk_dump(resource *r) sk_dump(resource *r)
{ {
sock *s = (sock *) r; sock *s = (sock *) r;
static char *sk_type_names[] = { "TCP<", "TCP>", "TCP", "UDP", "UDP/MC", "IP", "IP/MC" }; static char *sk_type_names[] = { "TCP<", "TCP>", "TCP", "UDP", "UDP/MC", "IP", "IP/MC", "MAGIC" };
debug("(%s, ud=%p, sa=%08x, sp=%d, da=%08x, dp=%d, tos=%d, ttl=%d, if=%s)\n", debug("(%s, ud=%p, sa=%08x, sp=%d, da=%08x, dp=%d, tos=%d, ttl=%d, if=%s)\n",
sk_type_names[s->type], sk_type_names[s->type],
@ -320,7 +320,7 @@ sk_setup(sock *s)
ERR("SO_DONTROUTE"); ERR("SO_DONTROUTE");
} }
#ifdef IP_PMTUDISC #ifdef IP_PMTUDISC
if (s->type != SK_TCP_PASSIVE && s->type != SK_TCP_ACTIVE) if (s->type != SK_TCP_PASSIVE && s->type != SK_TCP_ACTIVE && s->type != SK_MAGIC)
{ {
int dont = IP_PMTUDISC_DONT; int dont = IP_PMTUDISC_DONT;
if (setsockopt(fd, SOL_IP, IP_PMTUDISC, &dont, sizeof(dont)) < 0) if (setsockopt(fd, SOL_IP, IP_PMTUDISC, &dont, sizeof(dont)) < 0)
@ -379,8 +379,11 @@ sk_open(sock *s)
case SK_IP_MC: case SK_IP_MC:
fd = socket(PF_INET, SOCK_RAW, s->dport); fd = socket(PF_INET, SOCK_RAW, s->dport);
break; break;
case SK_MAGIC:
fd = s->fd;
break;
default: default:
bug("sk_open() called for invalid sock type %d", s->type); bug("sk_open() called for invalid sock type %d", type);
} }
if (fd < 0) if (fd < 0)
die("sk_open: socket: %m"); die("sk_open: socket: %m");
@ -489,6 +492,7 @@ sk_maybe_write(sock *s)
switch (s->type) switch (s->type)
{ {
case SK_TCP: case SK_TCP:
case SK_MAGIC:
while (s->ttx != s->tpos) while (s->ttx != s->tpos)
{ {
e = write(s->fd, s->ttx, s->tpos - s->ttx); e = write(s->fd, s->ttx, s->tpos - s->ttx);
@ -625,6 +629,8 @@ sk_read(sock *s)
} }
return 0; return 0;
} }
case SK_MAGIC:
return s->rx_hook(s, 0);
default: default:
{ {
struct sockaddr_in sa; struct sockaddr_in sa;