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import of dnsmasq-2.24.tar.gz

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This commit is contained in:
Simon Kelley
2005-11-26 21:46:27 +00:00
parent 3d8df260e1
commit b8187c80a8
35 changed files with 6104 additions and 364 deletions
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34
src/lease.c
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@@ -36,7 +36,7 @@ void lease_init(struct daemon *daemon, time_t now)
/* NOTE: need a+ mode to create file if it doesn't exist */
if (!(lease_file = fopen(daemon->lease_file, "a+")))
die("cannot open or create leases file: %s", NULL);
die(_("cannot open or create leases file: %s"), NULL);
/* a+ mode lease pointer at end. */
rewind(lease_file);
@@ -74,12 +74,12 @@ void lease_init(struct daemon *daemon, time_t now)
clid_len = parse_hex(daemon->packet, (unsigned char *)daemon->packet, 255, NULL);
if (!(lease = lease_allocate(hwaddr, (unsigned char *)daemon->packet, clid_len, addr)))
die ("too many stored leases", NULL);
die (_("too many stored leases"), NULL);
lease->expires = expires;
if (strcmp(daemon->dhcp_buff, "*") != 0)
lease_set_hostname(lease, daemon->dhcp_buff, daemon->domain_suffix);
lease_set_hostname(lease, daemon->dhcp_buff, daemon->domain_suffix, 0);
}
dns_dirty = 1;
@@ -88,17 +88,21 @@ void lease_init(struct daemon *daemon, time_t now)
daemon->lease_fd = fileno(lease_file);
}
void lease_update_from_configs(struct dhcp_config *dhcp_configs, char *domain)
void lease_update_from_configs(struct daemon *daemon)
{
/* changes to the config may change current leases. */
struct dhcp_lease *lease;
struct dhcp_config *config;
char *name;
for (lease = leases; lease; lease = lease->next)
if ((config = find_config(dhcp_configs, NULL, lease->clid, lease->clid_len, lease->hwaddr, NULL)) &&
(config->flags & CONFIG_NAME))
lease_set_hostname(lease, config->hostname, domain);
if ((config = find_config(daemon->dhcp_conf, NULL, lease->clid, lease->clid_len, lease->hwaddr, NULL)) &&
(config->flags & CONFIG_NAME) &&
(!(config->flags & CONFIG_ADDR) || config->addr.s_addr == lease->addr.s_addr))
lease_set_hostname(lease, config->hostname, daemon->domain_suffix, 1);
else if ((name = host_from_dns(daemon, lease->addr)))
lease_set_hostname(lease, name, daemon->domain_suffix, 1); /* updates auth flag only */
}
void lease_update_file(int always, time_t now)
@@ -304,26 +308,32 @@ int lease_set_hwaddr(struct dhcp_lease *lease, unsigned char *hwaddr,
return 1;
}
void lease_set_hostname(struct dhcp_lease *lease, char *name, char *suffix)
void lease_set_hostname(struct dhcp_lease *lease, char *name, char *suffix, int auth)
{
struct dhcp_lease *lease_tmp;
char *new_name = NULL, *new_fqdn = NULL;
if (lease->hostname && name && hostname_isequal(lease->hostname, name))
return;
{
lease->auth_name = auth;
return;
}
if (!name && !lease->hostname)
return;
/* If a machine turns up on a new net without dropping the old lease,
or two machines claim the same name, then we end up with two interfaces with
the same name. Check for that here and remove the name from the old lease. */
the same name. Check for that here and remove the name from the old lease.
Don't allow a name from the client to override a name from dnsmasq config. */
if (name)
{
for (lease_tmp = leases; lease_tmp; lease_tmp = lease_tmp->next)
if (lease_tmp->hostname && hostname_isequal(lease_tmp->hostname, name))
{
if (lease_tmp->auth_name && !auth)
return;
new_name = lease_tmp->hostname;
lease_tmp->hostname = NULL;
if (lease_tmp->fqdn)
@@ -331,6 +341,7 @@ void lease_set_hostname(struct dhcp_lease *lease, char *name, char *suffix)
new_fqdn = lease_tmp->fqdn;
lease_tmp->fqdn = NULL;
}
break;
}
if (!new_name && (new_name = malloc(strlen(name) + 1)))
@@ -351,6 +362,7 @@ void lease_set_hostname(struct dhcp_lease *lease, char *name, char *suffix)
lease->hostname = new_name;
lease->fqdn = new_fqdn;
lease->auth_name = auth;
file_dirty = force;
dns_dirty = 1;