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ipa-kdb: cache KDC hostname on startup

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We need KDC hostname for several purposes:
- short-circuit detection of principals on the same server as KDC
- generating NetBIOS name

Make sure we cache hostname information on startup and use it
instead of detecting the hostname in run-time. This will miss the
case that KDC hostname got changed but such cases are not supported
anyway without restarting KDC and making changes to principals.
This commit is contained in:
Alexander Bokovoy
2013-07-18 17:10:01 +03:00
parent 881290b010
commit 67bcbab897
3 changed files with 19 additions and 6 deletions
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9
daemons/ipa-kdb/ipa_kdb_mspac.c
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@@ -1905,16 +1905,13 @@ done:
return kerr;
}
static char *get_server_netbios_name(void)
static char *get_server_netbios_name(struct ipadb_context *ipactx)
{
char hostname[MAXHOSTNAMELEN + 1]; /* NOTE: this is 64, too little ? */
char *p;
int ret;
ret = gethostname(hostname, MAXHOSTNAMELEN);
if (ret) {
return NULL;
}
strncpy(hostname, ipactx->kdc_hostname, MAXHOSTNAMELEN);
/* May miss termination */
hostname[MAXHOSTNAMELEN] = '\0';
for (p = hostname; *p; p++) {
@@ -2245,7 +2242,7 @@ krb5_error_code ipadb_reinit_mspac(struct ipadb_context *ipactx)
free(resstr);
free(ipactx->mspac->flat_server_name);
ipactx->mspac->flat_server_name = get_server_netbios_name();
ipactx->mspac->flat_server_name = get_server_netbios_name(ipactx);
if (!ipactx->mspac->flat_server_name) {
kerr = ENOMEM;
goto done;