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Add code to support the standards version of DDNS
This commit is contained in:
Shawn Routhier
2013-10-14 15:53:24 -07:00
parent 1d851cff2c
commit d7d9c0c7c3
38 changed files with 2630 additions and 2114 deletions
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126
server/dhcpd.c
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@@ -76,86 +76,6 @@ option server.ddns-hostname = \n\
option server.ddns-domainname = config-option domain-name; \n\
option server.ddns-rev-domainname = \"in-addr.arpa.\";";
/* This is the old-style name service updater that is executed
whenever a lease is committed. It does not follow the DHCP-DNS
draft at all. */
char old_nsupdate [] = " \n\
on commit { \n\
if (not static and \n\
((config-option server.ddns-updates = null) or \n\
(config-option server.ddns-updates != 0))) { \n\
set new-ddns-fwd-name = \n\
concat (pick (config-option server.ddns-hostname, \n\
option host-name), \".\", \n\
pick (config-option server.ddns-domainname, \n\
config-option domain-name)); \n\
if (defined (ddns-fwd-name) and ddns-fwd-name != new-ddns-fwd-name) { \n\
switch (ns-update (delete (IN, A, ddns-fwd-name, leased-address))) { \n\
case NOERROR: \n\
unset ddns-fwd-name; \n\
on expiry or release { \n\
} \n\
} \n\
} \n\
\n\
if (not defined (ddns-fwd-name)) { \n\
set ddns-fwd-name = new-ddns-fwd-name; \n\
if defined (ddns-fwd-name) { \n\
switch (ns-update (not exists (IN, A, ddns-fwd-name, null), \n\
add (IN, A, ddns-fwd-name, leased-address, \n\
lease-time / 2))) { \n\
default: \n\
unset ddns-fwd-name; \n\
break; \n\
\n\
case NOERROR: \n\
set ddns-rev-name = \n\
concat (binary-to-ascii (10, 8, \".\", \n\
reverse (1, \n\
leased-address)), \".\", \n\
pick (config-option server.ddns-rev-domainname, \n\
\"in-addr.arpa.\")); \n\
switch (ns-update (delete (IN, PTR, ddns-rev-name, null), \n\
add (IN, PTR, ddns-rev-name, ddns-fwd-name, \n\
lease-time / 2))) \n\
{ \n\
default: \n\
unset ddns-rev-name; \n\
on release or expiry { \n\
switch (ns-update (delete (IN, A, ddns-fwd-name, \n\
leased-address))) { \n\
case NOERROR: \n\
unset ddns-fwd-name; \n\
break; \n\
} \n\
on release or expiry; \n\
} \n\
break; \n\
\n\
case NOERROR: \n\
on release or expiry { \n\
switch (ns-update (delete (IN, PTR, ddns-rev-name, null))) {\n\
case NOERROR: \n\
unset ddns-rev-name; \n\
break; \n\
} \n\
switch (ns-update (delete (IN, A, ddns-fwd-name, \n\
leased-address))) { \n\
case NOERROR: \n\
unset ddns-fwd-name; \n\
break; \n\
} \n\
on release or expiry; \n\
} \n\
} \n\
} \n\
} \n\
} \n\
unset new-ddns-fwd-name; \n\
} \n\
}";
#endif /* NSUPDATE */
int ddns_update_style;
@@ -875,9 +795,6 @@ void postconf_initialization (int quiet)
struct option_cache *oc;
char *s;
isc_result_t result;
#if defined (NSUPDATE)
struct parse *parse;
#endif
int tmp;
/* Now try to get the lease file name. */
@@ -1133,49 +1050,6 @@ void postconf_initialization (int quiet)
/* Don't need the options anymore. */
option_state_dereference (&options, MDL);
#if defined (NSUPDATE)
/* If old-style ddns updates have been requested, parse the
old-style ddns updater. */
if (ddns_update_style == 1) {
struct executable_statement **e, *s;
if (root_group -> statements) {
s = (struct executable_statement *)0;
if (!executable_statement_allocate (&s, MDL))
log_fatal ("no memory for ddns updater");
executable_statement_reference
(&s -> next, root_group -> statements, MDL);
executable_statement_dereference
(&root_group -> statements, MDL);
executable_statement_reference
(&root_group -> statements, s, MDL);
s -> op = statements_statement;
e = &s -> data.statements;
executable_statement_dereference (&s, MDL);
} else {
e = &root_group -> statements;
}
/* Set up the standard name service updater routine. */
parse = NULL;
result = new_parse(&parse, -1, old_nsupdate,
sizeof(old_nsupdate) - 1,
"old name service update routine", 0);
if (result != ISC_R_SUCCESS)
log_fatal ("can't begin parsing old ddns updater!");
if (parse != NULL) {
tmp = 0;
if (!(parse_executable_statements(e, parse, &tmp,
context_any))) {
end_parse(&parse);
log_fatal("can't parse standard ddns updater!");
}
}
end_parse(&parse);
}
#endif
}
void postdb_startup (void)