#include "includes.h"
#include "nsswitch/winbind_nss.h"
+#include "nsswitch/libwbclient/wbclient.h"
#ifdef HAVE_NS_API_H
#define INADDRSZ 4
#endif
-static int initialised;
-
NSS_STATUS _nss_wins_gethostbyname_r(const char *hostname, struct hostent *he,
char *buffer, size_t buflen, int *h_errnop);
NSS_STATUS _nss_wins_gethostbyname2_r(const char *name, int af, struct hostent *he,
char *buffer, size_t buflen, int *h_errnop);
-/* Use our own create socket code so we don't recurse.... */
-
-static int wins_lookup_open_socket_in(void)
-{
- struct sockaddr_in sock;
- int val=1;
- int res;
-
- memset((char *)&sock,'\0',sizeof(sock));
-
-#ifdef HAVE_SOCK_SIN_LEN
- sock.sin_len = sizeof(sock);
-#endif
- sock.sin_port = 0;
- sock.sin_family = AF_INET;
- sock.sin_addr.s_addr = interpret_addr("0.0.0.0");
- res = socket(AF_INET, SOCK_DGRAM, 0);
- if (res == -1)
- return -1;
-
- if (setsockopt(res,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)) != 0) {
- close(res);
- return -1;
- }
-#ifdef SO_REUSEPORT
- if (setsockopt(res,SOL_SOCKET,SO_REUSEPORT,(char *)&val,sizeof(val)) != 0) {
- close(res);
- return -1;
- }
-#endif /* SO_REUSEPORT */
-
- /* now we've got a socket - we need to bind it */
-
- if (bind(res, (struct sockaddr * ) &sock,sizeof(sock)) < 0) {
- close(res);
- return(-1);
- }
-
- set_socket_options(res,"SO_BROADCAST");
-
- return res;
-}
-
-
-static void nss_wins_init(void)
+static char *lookup_byname_backend(const char *name)
{
- initialised = 1;
- load_case_tables();
- lp_set_cmdline("log level", "0");
-
- TimeInit();
- setup_logging("nss_wins",False);
- lp_load(get_dyn_CONFIGFILE(),True,False,False,True);
- load_interfaces();
-}
-
-static struct in_addr *lookup_byname_backend(const char *name, int *count)
-{
- int fd = -1;
- struct ip_service *address = NULL;
- struct in_addr *ret = NULL;
- int j, flags = 0;
-
- if (!initialised) {
- nss_wins_init();
- }
+ const char *p;
+ char *ip;
+ size_t nbt_len;
+ wbcErr result;
- *count = 0;
-
- /* always try with wins first */
- if (NT_STATUS_IS_OK(resolve_wins(name,0x00,&address,count))) {
- if ( (ret = SMB_MALLOC_P(struct in_addr)) == NULL ) {
- free( address );
- return NULL;
- }
- if (address[0].ss.ss_family != AF_INET) {
- free(address);
- free(ret);
- return NULL;
- }
- *ret = ((struct sockaddr_in *)&address[0].ss)->sin_addr;
- free( address );
- return ret;
+ nbt_len = strlen(name);
+ if (nbt_len > MAX_NETBIOSNAME_LEN - 1) {
+ return NULL;
}
-
- fd = wins_lookup_open_socket_in();
- if (fd == -1) {
+ p = strchr(name, '.');
+ if (p != NULL) {
return NULL;
}
- /* uggh, we have to broadcast to each interface in turn */
- for (j=iface_count() - 1;j >= 0;j--) {
- const struct in_addr *bcast = iface_n_bcast_v4(j);
- struct sockaddr_storage ss;
- struct sockaddr_storage *pss;
- NTSTATUS status;
-
- if (!bcast) {
- continue;
- }
- in_addr_to_sockaddr_storage(&ss, *bcast);
- status = name_query(fd, name, 0x00, True, True, &ss,
- NULL, &pss, count, &flags, NULL);
- if (pss) {
- if ((ret = SMB_MALLOC_P(struct in_addr)) == NULL) {
- return NULL;
- }
- *ret = ((struct sockaddr_in *)pss)->sin_addr;
- TALLOC_FREE(pss);
- break;
- }
+ result = wbcResolveWinsByName(name, &ip);
+ if (result != WBC_ERR_SUCCESS) {
+ return NULL;
}
- close(fd);
- return ret;
+ return ip;
}
#ifdef HAVE_NS_API_H
-static struct node_status *lookup_byaddr_backend(char *addr, int *count)
+static char *lookup_byaddr_backend(const char *ip)
{
- int fd;
- struct sockaddr_storage ss;
- struct nmb_name nname;
- struct node_status *status;
-
- if (!initialised) {
- nss_wins_init();
- }
-
- fd = wins_lookup_open_socket_in();
- if (fd == -1)
- return NULL;
+ wbcErr result;
+ char *name = NULL;
- make_nmb_name(&nname, "*", 0);
- if (!interpret_string_addr(&ss, addr, AI_NUMERICHOST)) {
+ result = wbcResolveWinsByIP(ip, &name);
+ if (result != WBC_ERR_SUCCESS) {
return NULL;
}
- status = node_status_query(fd, &nname, &ss, count, NULL);
- close(fd);
- return status;
+ return name;
}
/* IRIX version */
int init(void)
{
+ bool ok;
+
nsd_logprintf(NSD_LOG_MIN, "entering init (wins)\n");
- nss_wins_init();
+
+ ok = nss_wins_init();
+ if (!ok) {
+ return NSD_ERROR;
+ }
+
return NSD_OK;
}
char *map;
char *key;
char *addr;
- struct in_addr *ip_list;
- struct node_status *status;
int i, count, len, size;
char response[1024];
bool found = False;
* response needs to be a string of the following format
* ip_address[ ip_address]*\tname[ alias]*
*/
- if (StrCaseCmp(map,"hosts.byaddr") == 0) {
- if ( status = lookup_byaddr_backend(key, &count)) {
- size = strlen(key) + 1;
- if (size > len) {
- free(status);
- return NSD_ERROR;
- }
- len -= size;
- strncat(response,key,size);
- strncat(response,"\t",1);
- for (i = 0; i < count; i++) {
- /* ignore group names */
- if (status[i].flags & 0x80) continue;
- if (status[i].type == 0x20) {
- size = sizeof(status[i].name) + 1;
- if (size > len) {
- free(status);
- return NSD_ERROR;
- }
- len -= size;
- strncat(response, status[i].name, size);
- strncat(response, " ", 1);
- found = True;
+ if (strcasecmp_m(map,"hosts.byaddr") == 0) {
+ char *name;
+
+ name = lookup_byaddr_backend(key);
+ if (name != NULL) {
+ size = strlen(key) + 1;
+ if (size > len) {
+ return NSD_ERROR;
}
- }
- response[strlen(response)-1] = '\n';
- free(status);
- }
- } else if (StrCaseCmp(map,"hosts.byname") == 0) {
- if (ip_list = lookup_byname_backend(key, &count)) {
- for (i = count; i ; i--) {
- addr = inet_ntoa(ip_list[i-1]);
- size = strlen(addr) + 1;
- if (size > len) {
- free(ip_list);
- return NSD_ERROR;
- }
- len -= size;
- if (i != 0)
- response[strlen(response)-1] = ' ';
- strncat(response,addr,size);
- strncat(response,"\t",1);
+ len -= size;
+ strncat(response,key,size);
+ strncat(response,"\t",1);
+
+ size = strlen(name) + 1;
+ if (size > len) {
+ return NSD_ERROR;
+ }
+ len -= size;
+ strncat(response, name, size);
+ strncat(response, " ", 1);
+ found = True;
}
- size = strlen(key) + 1;
- if (size > len) {
- free(ip_list);
- return NSD_ERROR;
+ response[strlen(response)-1] = '\n';
+ } else if (strcasecmp_m(map,"hosts.byname") == 0) {
+ char *ip;
+
+ ip = lookup_byname_backend(key);
+ if (ip != NULL) {
+ size = strlen(ip) + 1;
+ if (size > len) {
+ wbcFreeMemory(ip);
+ return NSD_ERROR;
+ }
+ len -= size;
+ strncat(response,ip,size);
+ strncat(response,"\t",1);
+ size = strlen(key) + 1;
+ wbcFreeMemory(ip);
+ if (size > len) {
+ return NSD_ERROR;
+ }
+ strncat(response,key,size);
+ strncat(response,"\n",1);
+
+ found = True;
}
- strncat(response,key,size);
- strncat(response,"\n",1);
- found = True;
- free(ip_list);
- }
}
if (found) {
are the pointers passed in by the C library to the _nss_*_*
functions. */
-static char *get_static(char **buffer, size_t *buflen, int len)
+static char *get_static(char **buffer, size_t *buflen, size_t len)
{
char *result;
char *buffer, size_t buflen, int *h_errnop)
{
NSS_STATUS nss_status = NSS_STATUS_SUCCESS;
- struct in_addr *ip_list;
- int i, count;
+ char *ip;
+ struct in_addr in;
+ int i;
fstring name;
size_t namelen;
- TALLOC_CTX *frame;
+ int rc;
#if HAVE_PTHREAD
pthread_mutex_lock(&wins_nss_mutex);
#endif
- frame = talloc_stackframe();
-
memset(he, '\0', sizeof(*he));
fstrcpy(name, hostname);
/* Do lookup */
- ip_list = lookup_byname_backend(name, &count);
-
- if (!ip_list) {
+ ip = lookup_byname_backend(name);
+ if (ip == NULL) {
nss_status = NSS_STATUS_NOTFOUND;
goto out;
}
+ rc = inet_pton(AF_INET, ip, &in);
+ wbcFreeMemory(ip);
+ if (rc == 0) {
+ nss_status = NSS_STATUS_TRYAGAIN;
+ goto out;
+ }
+
/* Copy h_name */
namelen = strlen(name) + 1;
if ((he->h_name = get_static(&buffer, &buflen, namelen)) == NULL) {
- free(ip_list);
nss_status = NSS_STATUS_TRYAGAIN;
goto out;
}
i = sizeof(char*) - i;
if (get_static(&buffer, &buflen, i) == NULL) {
- free(ip_list);
nss_status = NSS_STATUS_TRYAGAIN;
goto out;
}
if ((he->h_addr_list = (char **)get_static(
- &buffer, &buflen, (count + 1) * sizeof(char *))) == NULL) {
- free(ip_list);
+ &buffer, &buflen, i * sizeof(char *))) == NULL) {
nss_status = NSS_STATUS_TRYAGAIN;
goto out;
}
- for (i = 0; i < count; i++) {
- if ((he->h_addr_list[i] = get_static(&buffer, &buflen,
- INADDRSZ)) == NULL) {
- free(ip_list);
- nss_status = NSS_STATUS_TRYAGAIN;
- goto out;
- }
- memcpy(he->h_addr_list[i], &ip_list[i], INADDRSZ);
+ if ((he->h_addr_list[0] = get_static(&buffer, &buflen,
+ INADDRSZ)) == NULL) {
+ nss_status = NSS_STATUS_TRYAGAIN;
+ goto out;
}
- he->h_addr_list[count] = NULL;
+ memcpy(he->h_addr_list[i], &in, INADDRSZ);
- free(ip_list);
+ he->h_addr_list[0] = NULL;
/* Set h_addr_type and h_length */
out:
- TALLOC_FREE(frame);
-
#if HAVE_PTHREAD
pthread_mutex_unlock(&wins_nss_mutex);
#endif
git.samba.org / kai / samba-autobuild / .git / blobdiff