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Support referring to hosts by name and recording them in the lease database.

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This commit is contained in:
Ted Lemon 1999-09-08 01:44:57 +00:00
parent 16be393750
commit dc24669481
1 changed files with 42 additions and 7 deletions
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49
common/memory.c
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@ -22,27 +22,34 @@
#ifndef lint #ifndef lint
static char copyright[] = static char copyright[] =
"$Id: memory.c,v 1.53 1999/07/31 17:57:27 mellon Exp $ Copyright (c) 1995, 1996, 1997, 1998, 1999 The Internet Software Consortium. All rights reserved.\n"; "$Id: memory.c,v 1.54 1999/09/08 01:44:57 mellon Exp $ Copyright (c) 1995, 1996, 1997, 1998, 1999 The Internet Software Consortium. All rights reserved.\n";
#endif /* not lint */ #endif /* not lint */
#include "dhcpd.h" #include "dhcpd.h"
static struct subnet *subnets; static struct subnet *subnets;
static struct shared_network *shared_networks; static struct shared_network *shared_networks;
static struct hash_table *host_hw_addr_hash; struct hash_table *host_hw_addr_hash;
static struct hash_table *host_uid_hash; struct hash_table *host_uid_hash;
static struct hash_table *lease_uid_hash; struct hash_table *lease_uid_hash;
static struct hash_table *lease_ip_addr_hash; struct hash_table *lease_ip_addr_hash;
static struct hash_table *lease_hw_addr_hash; struct hash_table *lease_hw_addr_hash;
struct hash_table *host_name_hash;
static struct lease *dangling_leases; static struct lease *dangling_leases;
static struct host_decl *dynamic_hosts;
void enter_host (hd) void enter_host (hd, dynamicp)
struct host_decl *hd; struct host_decl *hd;
int dynamicp;
{ {
struct host_decl *hp = (struct host_decl *)0; struct host_decl *hp = (struct host_decl *)0;
struct host_decl *np = (struct host_decl *)0; struct host_decl *np = (struct host_decl *)0;
struct executable_statement *esp; struct executable_statement *esp;
if (dynamicp) {
hd -> n_dynamic = dynamic_hosts;
dynamic_hosts = hd -> n_dynamic;
}
hd -> n_ipaddr = (struct host_decl *)0; hd -> n_ipaddr = (struct host_decl *)0;
if (hd -> interface.hlen) { if (hd -> interface.hlen) {
@ -128,6 +135,28 @@ void enter_host (hd)
(unsigned char *)hd); (unsigned char *)hd);
} }
} }
if (!host_name_hash) {
host_name_hash = new_hash ();
if (!host_name_hash)
log_fatal ("Can't allocate host/hw hash");
} else {
hp = (struct host_decl *)
hash_lookup (host_name_hash,
hd -> name,
strlen (hd -> name));
/* If there isn't already a host decl matching this
address, add it to the hash table. */
if (!hp)
add_hash (host_name_hash,
hd -> name, strlen (hd -> name),
(unsigned char *)hd);
else
/* XXX actually, we have to delete the old one
XXX carefully and replace it. Not done yet. */
log_fatal ("duplicate hostname: %s!", hd -> name);
}
} }
struct host_decl *find_hosts_by_haddr (htype, haddr, hlen) struct host_decl *find_hosts_by_haddr (htype, haddr, hlen)
@ -880,7 +909,13 @@ void write_leases ()
struct lease *l; struct lease *l;
struct shared_network *s; struct shared_network *s;
struct pool *p; struct pool *p;
struct host_decl *hp;
/* Write all the dynamically-created host declarations. */
for (hp = dynamic_hosts; hp; hp = hp -> n_dynamic)
write_host (hp);
/* Write all the leases. */
for (s = shared_networks; s; s = s -> next) { for (s = shared_networks; s; s = s -> next) {
for (p = s -> pools; p; p = p -> next) { for (p = s -> pools; p; p = p -> next) {
for (l = p -> leases; l; l = l -> next) { for (l = p -> leases; l; l = l -> next) {