/* newCellNamep is required to be CELL_MAXNAMELEN in size */
long cm_SearchCellByDNS(char *cellNamep, char *newCellNamep, int *ttl,
cm_configProc_t *procp, void *rockp)
{
int rc;
int cellHostAddrs[AFSMAXCELLHOSTS];
char cellHostNames[AFSMAXCELLHOSTS][MAXHOSTCHARS];
unsigned short ipRanks[AFSMAXCELLHOSTS];
unsigned short ports[AFSMAXCELLHOSTS]; /* network byte order */
int numServers;
int i;
struct sockaddr_in vlSockAddr;
#ifdef CELLSERV_DEBUG
osi_Log1(afsd_logp,"SearchCellDNS-Doing search for [%s]", osi_LogSaveString(afsd_logp,cellNamep));
#endif
/*
* Do not perform a DNS lookup if the name is
* either a well-known Windows DLL or directory,
* or if the name does not contain a top-level
* domain, or if the file prefix is the afs pioctl
* file name.
*/
if ( IsWindowsModule(cellNamep) ||
cm_FsStrChr(cellNamep, '.') == NULL ||
strncasecmp(cellNamep, CM_IOCTL_FILENAME_NOSLASH, sizeof(CM_IOCTL_FILENAME_NOSLASH)-1) == 0)
return -1;
rc = getAFSServer("afs3-vlserver", "udp", cellNamep, htons(7003),
cellHostAddrs, cellHostNames, ports, ipRanks, &numServers, ttl);
if (rc == 0 && numServers > 0) { /* found the cell */
for (i = 0; i < numServers; i++) {
memcpy(&vlSockAddr.sin_addr.s_addr, &cellHostAddrs[i],
sizeof(long));
vlSockAddr.sin_port = ports[i];
vlSockAddr.sin_family = AF_INET;
if (procp)
(*procp)(rockp, &vlSockAddr, cellHostNames[i], ipRanks[i]);
}
if (newCellNamep) {
if(FAILED(StringCchCopy(newCellNamep, CELL_MAXNAMELEN, cellNamep)))
return -1;
strlwr(newCellNamep);
}
return 0; /* found cell */
}
else
return -1; /* not found */
}
/* If we couldn't find an entry for the requested service
* and that service happens to be the prservice or kaservice
* then fallback to searching for afs3-vlserver and assigning
* the port number here. */
if (code < 0 && (afsdbport == htons(7002) || afsdbport == htons(7004))) {
code = afsconf_LookupServer("afs3-vlserver", "udp",
(const char *)acellName, afsdbport,
cellHostAddrs, cellHostNames,
ports, ipRanks, &numServers, &ttl,
&realCellName);
if (code >= 0) {
for (i = 0; i < numServers; i++)
ports[i] = afsdbport;
}
}
if (code == 0) {
acellInfo->timeout = ttl;
acellInfo->numServers = numServers;
for (i = 0; i < numServers; i++) {
memcpy(&acellInfo->hostAddr[i].sin_addr.s_addr, &cellHostAddrs[i],
sizeof(afs_int32));
memcpy(acellInfo->hostName[i], cellHostNames[i], MAXHOSTCHARS);
acellInfo->hostAddr[i].sin_family = AF_INET;
acellInfo->hostAddr[i].sin_port = ports[i];
if (realCellName) {
strlcpy(acellInfo->name, realCellName,
sizeof(acellInfo->name));
free(realCellName);
realCellName = NULL;
}
}
acellInfo->linkedCell = NULL; /* no linked cell */
acellInfo->flags = 0;
}
return code;
}
#else /* windows */
int
afsconf_GetAfsdbInfo(char *acellName, char *aservice,
struct afsconf_cell *acellInfo)
{
afs_int32 i;
int tservice = afsconf_FindService(aservice); /* network byte order */
const char *ianaName = afsconf_FindIANAName(aservice);
struct afsconf_entry DNSce;
afs_uint32 cellHostAddrs[AFSMAXCELLHOSTS];
char cellHostNames[AFSMAXCELLHOSTS][MAXHOSTCHARS];
unsigned short ipRanks[AFSMAXCELLHOSTS];
unsigned short ports[AFSMAXCELLHOSTS]; /* network byte order */
int numServers;
int rc;
int ttl;
if (tservice < 0) {
if (aservice)
return AFSCONF_NOTFOUND;
else
tservice = 0; /* port will be assigned by caller */
}
if (ianaName == NULL)
ianaName = "afs3-vlserver";
DNSce.cellInfo.numServers = 0;
DNSce.next = NULL;
rc = getAFSServer(ianaName, "udp", acellName, tservice,
cellHostAddrs, cellHostNames, ports, ipRanks, &numServers,
&ttl);
/* ignore the ttl here since this code is only called by transitory programs
* like klog, etc. */
/* If we couldn't find an entry for the requested service
* and that service happens to be the prservice or kaservice
* then fallback to searching for afs3-vlserver and assigning
* the port number here. */
if (rc < 0 && (tservice == htons(7002) || tservice == htons(7004))) {
rc = getAFSServer("afs3-vlserver", "udp", acellName, tservice,
cellHostAddrs, cellHostNames, ports, ipRanks, &numServers,
&ttl);
if (rc >= 0) {
for (i = 0; i < numServers; i++)
ports[i] = tservice;
}
}
if (rc < 0 || numServers == 0)
return -1;
for (i = 0; i < numServers; i++) {
memcpy(&acellInfo->hostAddr[i].sin_addr.s_addr, &cellHostAddrs[i],
sizeof(afs_uint32));
memcpy(acellInfo->hostName[i], cellHostNames[i], MAXHOSTCHARS);
acellInfo->hostAddr[i].sin_family = AF_INET;
if (aservice)
acellInfo->hostAddr[i].sin_port = ports[i];
else
acellInfo->hostAddr[i].sin_port = 0;
}
acellInfo->numServers = numServers;
strlcpy(acellInfo->name, acellName, sizeof acellInfo->name);
acellInfo->linkedCell = NULL; /* no linked cell */
acellInfo->flags = 0;
return 0;
}
