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This commit was generated by cvs2svn to compensate for changes in r21378,

Browse Source 
which included commits to RCS files with non-trunk default branches.
This commit is contained in:
Garrett Wollman 1997-01-06 17:24:50 +00:00
commit 5f3ab5ec26
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=21379
1 changed files with 24 additions and 23 deletions
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47
sbin/routed/if.c
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@ -36,7 +36,7 @@ static char sccsid[] = "@(#)if.c 8.1 (Berkeley) 6/5/93";
#elif defined(__NetBSD__)
static char rcsid[] = "$NetBSD$";
#endif
#ident "$Revision: 1.22 $"
#ident "$Revision: 1.23 $"
#include "defs.h"
#include "pathnames.h"
@ -49,12 +49,12 @@ struct interface *ifnet; /* all interfaces */
* by name or address.
*/
#define AHASH_LEN 211 /* must be prime */
#define AHASH(a) &ahash[(a)%AHASH_LEN]
struct interface *ahash[AHASH_LEN];
#define AHASH(a) &ahash_tbl[(a)%AHASH_LEN]
struct interface *ahash_tbl[AHASH_LEN];
#define BHASH_LEN 211 /* must be prime */
#define BHASH(a) &bhash[(a)%BHASH_LEN]
struct interface *bhash[BHASH_LEN];
#define BHASH(a) &bhash_tbl[(a)%BHASH_LEN]
struct interface *bhash_tbl[BHASH_LEN];
struct interface *remote_if; /* remote interfaces */
@ -63,7 +63,7 @@ struct interface *remote_if; /* remote interfaces */
* aliases are put on the end of the hash chains.
*/
#define NHASH_LEN 97
struct interface *nhash[NHASH_LEN];
struct interface *nhash_tbl[NHASH_LEN];
int tot_interfaces; /* # of remote and local interfaces */
int rip_interfaces; /* # of interfaces doing RIP */
@ -77,13 +77,24 @@ int have_ripv1_out; /* have a RIPv1 interface */
int have_ripv1_in;
static struct interface**
nhash(register char *p)
{
register u_int i;
for (i = 0; *p != '\0'; p++) {
i = ((i<<1) & 0x7fffffff) | ((i>>31) & 1);
i ^= *p;
}
return &nhash_tbl[i % NHASH_LEN];
}
/* Link a new interface into the lists and hash tables.
*/
void
if_link(struct interface *ifp)
{
int i;
char *p;
struct interface **hifp;
ifp->int_prev = &ifnet;
@ -94,14 +105,12 @@ if_link(struct interface *ifp)
hifp = AHASH(ifp->int_addr);
ifp->int_ahash_prev = hifp;
ifp->int_ahash = *hifp;
if ((ifp->int_ahash = *hifp) != 0)
(*hifp)->int_ahash_prev = &ifp->int_ahash;
*hifp = ifp;
if (ifp->int_if_flags & IFF_BROADCAST) {
hifp = BHASH(ifp->int_brdaddr);
ifp->int_bhash = *hifp;
ifp->int_bhash_prev = hifp;
if ((ifp->int_bhash = *hifp) != 0)
(*hifp)->int_bhash_prev = &ifp->int_bhash;
@ -116,15 +125,12 @@ if_link(struct interface *ifp)
remote_if = ifp;
}
for (i = 0, p = ifp->int_name; *p != '\0'; p++)
i += *p;
hifp = &nhash[i % NHASH_LEN];
hifp = nhash(ifp->int_name);
if (ifp->int_state & IS_ALIAS) {
/* put aliases on the end of the hash chain */
while (*hifp != 0)
hifp = &(*hifp)->int_nhash;
}
ifp->int_nhash = *hifp;
ifp->int_nhash_prev = hifp;
if ((ifp->int_nhash = *hifp) != 0)
(*hifp)->int_nhash_prev = &ifp->int_nhash;
@ -177,15 +183,9 @@ ifwithname(char *name, /* "ec0" or whatever */
naddr addr) /* 0 or network address */
{
struct interface *ifp;
int i;
char *p;
for (;;) {
for (i = 0, p = name; *p != '\0'; p++)
i += *p;
ifp = nhash[i % NHASH_LEN];
while (ifp != 0) {
for (ifp = *nhash(name); ifp != 0; ifp = ifp->int_nhash) {
/* If the network address is not specified,
* ignore any alias interfaces. Otherwise, look
* for the interface with the target name and address.
@ -194,10 +194,8 @@ ifwithname(char *name, /* "ec0" or whatever */
&& ((addr == 0 && !(ifp->int_state & IS_ALIAS))
|| (ifp->int_addr == addr)))
return ifp;
ifp = ifp->int_nhash;
}
/* If there is no known interface, maybe there is a
* new interface. So just once look for new interfaces.
*/
@ -445,6 +443,9 @@ ifdel(struct interface *ifp)
*ifp->int_ahash_prev = ifp->int_ahash;
if (ifp->int_ahash != 0)
ifp->int_ahash->int_ahash_prev = ifp->int_ahash_prev;
*ifp->int_nhash_prev = ifp->int_nhash;
if (ifp->int_nhash != 0)
ifp->int_nhash->int_nhash_prev = ifp->int_nhash_prev;
if (ifp->int_if_flags & IFF_BROADCAST) {
*ifp->int_bhash_prev = ifp->int_bhash;
if (ifp->int_bhash != 0)