Adding upstream version 2:4.17.12+dfsg.upstream/2%4.17.12+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 665 insertions, 0 deletions

diff --git a/nsswitch/winbind_nss_solaris.c b/nsswitch/winbind_nss_solaris.c
new file mode 100644
index 0000000..495854f
--- /dev/null
+++ b/nsswitch/winbind_nss_solaris.c
@@ -0,0 +1,665 @@
+/*
+  Solaris NSS wrapper for winbind
+  - Shirish Kalele 2000
+
+  Based on Luke Howard's ldap_nss module for Solaris
+  */
+
+/*
+  Copyright (C) 1997-2003 Luke Howard.
+  This file is part of the nss_ldap library.
+
+  The nss_ldap library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public License as
+  published by the Free Software Foundation; either version 3 of the
+  License, or (at your option) any later version.
+
+  The nss_ldap library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Library General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with the nss_ldap library; see the file COPYING.LIB.  If not,
+  see <http://www.gnu.org/licenses/>.
+*/
+
+#undef DEVELOPER
+
+
+#include "winbind_client.h"
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/param.h>
+#include <string.h>
+#include <pwd.h>
+#include <syslog.h>
+
+#if !defined(HPUX)
+#include <sys/syslog.h>
+#endif /*hpux*/
+
+#if defined(HAVE_NSS_COMMON_H) || defined(HPUX)
+
+#undef NSS_DEBUG
+
+#ifdef NSS_DEBUG
+#define NSS_DEBUG(str) syslog(LOG_DEBUG, "nss_winbind: %s", str);
+#else
+#define NSS_DEBUG(str) ;
+#endif
+
+#if !defined(SMB_MALLOC_P)
+#define SMB_MALLOC_P(type) (type *)malloc(sizeof(type))
+#endif
+
+#define NSS_ARGS(args) ((nss_XbyY_args_t *)args)
+
+#ifdef HPUX
+
+/*
+ * HP-UX 11 has no definiton of the nss_groupsbymem structure.   This
+ * definition is taken from the nss_ldap project at:
+ *  http://www.padl.com/OSS/nss_ldap.html
+ */
+
+struct nss_groupsbymem {
+       const char *username;
+       gid_t *gid_array;
+       int maxgids;
+       int force_slow_way;
+       int (*str2ent)(const char *instr, int instr_len, void *ent,
+		      char *buffer, int buflen);
+       nss_status_t (*process_cstr)(const char *instr, int instr_len,
+				    struct nss_groupsbymem *);
+       int numgids;
+};
+
+#endif /* HPUX */
+
+static NSS_STATUS _nss_winbind_setpwent_solwrap (nss_backend_t* be, void* args)
+{
+	NSS_DEBUG("_nss_winbind_setpwent_solwrap");
+	return _nss_winbind_setpwent();
+}
+
+static NSS_STATUS
+_nss_winbind_endpwent_solwrap (nss_backend_t * be, void *args)
+{
+	NSS_DEBUG("_nss_winbind_endpwent_solwrap");
+	return _nss_winbind_endpwent();
+}
+
+static NSS_STATUS
+_nss_winbind_getpwent_solwrap (nss_backend_t* be, void *args)
+{
+	NSS_STATUS ret;
+	char* buffer = NSS_ARGS(args)->buf.buffer;
+	int buflen = NSS_ARGS(args)->buf.buflen;
+	struct passwd* result = (struct passwd*) NSS_ARGS(args)->buf.result;
+	int* errnop = &NSS_ARGS(args)->erange;
+	char logmsg[80];
+
+	ret = _nss_winbind_getpwent_r(result, buffer,
+				      buflen, errnop);
+
+	if(ret == NSS_STATUS_SUCCESS)
+		{
+			snprintf(logmsg, 79, "_nss_winbind_getpwent_solwrap: Returning user: %s\n",
+				 result->pw_name);
+			NSS_DEBUG(logmsg);
+			NSS_ARGS(args)->returnval = (void*) result;
+		} else {
+			snprintf(logmsg, 79, "_nss_winbind_getpwent_solwrap: Returning error: %d.\n",ret);
+			NSS_DEBUG(logmsg);
+		}
+
+	return ret;
+}
+
+static NSS_STATUS
+_nss_winbind_getpwnam_solwrap (nss_backend_t* be, void* args)
+{
+	NSS_STATUS ret;
+	struct passwd* result = (struct passwd*) NSS_ARGS(args)->buf.result;
+
+	NSS_DEBUG("_nss_winbind_getpwnam_solwrap");
+
+	ret = _nss_winbind_getpwnam_r (NSS_ARGS(args)->key.name,
+						result,
+						NSS_ARGS(args)->buf.buffer,
+						NSS_ARGS(args)->buf.buflen,
+						&NSS_ARGS(args)->erange);
+	if(ret == NSS_STATUS_SUCCESS)
+		NSS_ARGS(args)->returnval = (void*) result;
+
+	return ret;
+}
+
+static NSS_STATUS
+_nss_winbind_getpwuid_solwrap(nss_backend_t* be, void* args)
+{
+	NSS_STATUS ret;
+	struct passwd* result = (struct passwd*) NSS_ARGS(args)->buf.result;
+
+	NSS_DEBUG("_nss_winbind_getpwuid_solwrap");
+	ret = _nss_winbind_getpwuid_r (NSS_ARGS(args)->key.uid,
+				       result,
+				       NSS_ARGS(args)->buf.buffer,
+				       NSS_ARGS(args)->buf.buflen,
+				       &NSS_ARGS(args)->erange);
+	if(ret == NSS_STATUS_SUCCESS)
+		NSS_ARGS(args)->returnval = (void*) result;
+
+	return ret;
+}
+
+static NSS_STATUS _nss_winbind_passwd_destr (nss_backend_t * be, void *args)
+{
+	SAFE_FREE(be);
+	NSS_DEBUG("_nss_winbind_passwd_destr");
+	return NSS_STATUS_SUCCESS;
+}
+
+static nss_backend_op_t passwd_ops[] =
+{
+	_nss_winbind_passwd_destr,
+	_nss_winbind_endpwent_solwrap,		/* NSS_DBOP_ENDENT */
+	_nss_winbind_setpwent_solwrap,		/* NSS_DBOP_SETENT */
+	_nss_winbind_getpwent_solwrap,		/* NSS_DBOP_GETENT */
+	_nss_winbind_getpwnam_solwrap,		/* NSS_DBOP_PASSWD_BYNAME */
+	_nss_winbind_getpwuid_solwrap		/* NSS_DBOP_PASSWD_BYUID */
+};
+
+nss_backend_t*
+_nss_winbind_passwd_constr (const char* db_name,
+			    const char* src_name,
+			    const char* cfg_args)
+{
+	nss_backend_t *be;
+
+	if(!(be = SMB_MALLOC_P(nss_backend_t)) )
+		return NULL;
+
+	be->ops = passwd_ops;
+	be->n_ops = sizeof(passwd_ops) / sizeof(nss_backend_op_t);
+
+	NSS_DEBUG("Initialized nss_winbind passwd backend");
+	return be;
+}
+
+/*****************************************************************
+ GROUP database backend
+ *****************************************************************/
+
+static NSS_STATUS _nss_winbind_setgrent_solwrap (nss_backend_t* be, void* args)
+{
+	NSS_DEBUG("_nss_winbind_setgrent_solwrap");
+	return _nss_winbind_setgrent();
+}
+
+static NSS_STATUS
+_nss_winbind_endgrent_solwrap (nss_backend_t * be, void *args)
+{
+	NSS_DEBUG("_nss_winbind_endgrent_solwrap");
+	return _nss_winbind_endgrent();
+}
+
+static NSS_STATUS
+_nss_winbind_getgrent_solwrap(nss_backend_t* be, void* args)
+{
+	NSS_STATUS ret;
+	char* buffer = NSS_ARGS(args)->buf.buffer;
+	int buflen = NSS_ARGS(args)->buf.buflen;
+	struct group* result = (struct group*) NSS_ARGS(args)->buf.result;
+	int* errnop = &NSS_ARGS(args)->erange;
+	char logmsg[80];
+
+	ret = _nss_winbind_getgrent_r(result, buffer,
+				      buflen, errnop);
+
+	if(ret == NSS_STATUS_SUCCESS)
+		{
+			snprintf(logmsg, 79, "_nss_winbind_getgrent_solwrap: Returning group: %s\n", result->gr_name);
+			NSS_DEBUG(logmsg);
+			NSS_ARGS(args)->returnval = (void*) result;
+		} else {
+			snprintf(logmsg, 79, "_nss_winbind_getgrent_solwrap: Returning error: %d.\n", ret);
+			NSS_DEBUG(logmsg);
+		}
+
+	return ret;
+
+}
+
+static NSS_STATUS
+_nss_winbind_getgrnam_solwrap(nss_backend_t* be, void* args)
+{
+	NSS_STATUS ret;
+	struct group* result = (struct group*) NSS_ARGS(args)->buf.result;
+
+	NSS_DEBUG("_nss_winbind_getgrnam_solwrap");
+	ret = _nss_winbind_getgrnam_r(NSS_ARGS(args)->key.name,
+				      result,
+				      NSS_ARGS(args)->buf.buffer,
+				      NSS_ARGS(args)->buf.buflen,
+				      &NSS_ARGS(args)->erange);
+
+	if(ret == NSS_STATUS_SUCCESS)
+		NSS_ARGS(args)->returnval = (void*) result;
+
+	if (NSS_ARGS(args)->erange == ERANGE && ret == NSS_STATUS_TRYAGAIN)
+		return NSS_STATUS_UNAVAIL;
+
+	return ret;
+}
+
+static NSS_STATUS
+_nss_winbind_getgrgid_solwrap(nss_backend_t* be, void* args)
+{
+	NSS_STATUS ret;
+	struct group* result = (struct group*) NSS_ARGS(args)->buf.result;
+
+	NSS_DEBUG("_nss_winbind_getgrgid_solwrap");
+	ret = _nss_winbind_getgrgid_r (NSS_ARGS(args)->key.gid,
+				       result,
+				       NSS_ARGS(args)->buf.buffer,
+				       NSS_ARGS(args)->buf.buflen,
+				       &NSS_ARGS(args)->erange);
+
+	if(ret == NSS_STATUS_SUCCESS)
+		NSS_ARGS(args)->returnval = (void*) result;
+
+	if (NSS_ARGS(args)->erange == ERANGE && ret == NSS_STATUS_TRYAGAIN)
+		return NSS_STATUS_UNAVAIL;
+
+	return ret;
+}
+
+static NSS_STATUS
+_nss_winbind_getgroupsbymember_solwrap(nss_backend_t* be, void* args)
+{
+	int errnop;
+	struct nss_groupsbymem *gmem = (struct nss_groupsbymem *)args;
+	long int numgids = gmem->numgids;
+	long int maxgids = gmem->maxgids;
+
+	NSS_DEBUG("_nss_winbind_getgroupsbymember");
+
+	_nss_winbind_initgroups_dyn(gmem->username,
+		gmem->gid_array[0], /* Primary Group */
+		&numgids,
+		&maxgids,
+		&gmem->gid_array,
+		gmem->maxgids,
+		&errnop);
+
+	gmem->numgids = numgids;
+	gmem->maxgids = maxgids;
+
+	/*
+	 * If the maximum number of gids have been found, return
+	 * SUCCESS so the switch engine will stop searching. Otherwise
+	 * return NOTFOUND so nsswitch will continue to get groups
+	 * from the remaining database backends specified in the
+	 * nsswitch.conf file.
+	 */
+	return (gmem->numgids == gmem->maxgids ? NSS_STATUS_SUCCESS : NSS_STATUS_NOTFOUND);
+}
+
+static NSS_STATUS
+_nss_winbind_group_destr (nss_backend_t* be, void* args)
+{
+	SAFE_FREE(be);
+	NSS_DEBUG("_nss_winbind_group_destr");
+	return NSS_STATUS_SUCCESS;
+}
+
+static nss_backend_op_t group_ops[] =
+{
+	_nss_winbind_group_destr,
+	_nss_winbind_endgrent_solwrap,
+	_nss_winbind_setgrent_solwrap,
+	_nss_winbind_getgrent_solwrap,
+	_nss_winbind_getgrnam_solwrap,
+	_nss_winbind_getgrgid_solwrap,
+	_nss_winbind_getgroupsbymember_solwrap
+};
+
+nss_backend_t*
+_nss_winbind_group_constr (const char* db_name,
+			   const char* src_name,
+			   const char* cfg_args)
+{
+	nss_backend_t* be;
+
+	if(!(be = SMB_MALLOC_P(nss_backend_t)) )
+		return NULL;
+
+	be->ops = group_ops;
+	be->n_ops = sizeof(group_ops) / sizeof(nss_backend_op_t);
+
+	NSS_DEBUG("Initialized nss_winbind group backend");
+	return be;
+}
+
+/*****************************************************************
+ hosts and ipnodes backend
+ *****************************************************************/
+#if defined(SUNOS5)	/* not compatible with HP-UX */
+
+/* this parser is shared between get*byname and get*byaddr, as key type
+   in request is stored in different locations, I had to provide the
+   address family as an argument, caller must free the winbind response. */
+
+static NSS_STATUS
+parse_response(int af, nss_XbyY_args_t* argp, struct winbindd_response *response)
+{
+	struct hostent *he = (struct hostent *)argp->buf.result;
+	char *buffer = argp->buf.buffer;
+	int buflen =  argp->buf.buflen;
+	NSS_STATUS ret;
+
+	char *p, *data;
+	int addrcount = 0;
+	int len = 0;
+	struct in_addr *addrp;
+#if defined(AF_INET6)
+	struct in6_addr *addrp6;
+#endif
+	int i;
+
+	/* response is tab separated list of ip addresses with hostname
+	   and newline at the end. so at first we will strip newline
+	   then construct list of addresses for hostent.
+	*/
+	p = strchr(response->data.winsresp, '\n');
+	if(p) *p = '\0';
+	else {/* it must be broken */
+		argp->h_errno = NO_DATA;
+		return NSS_STATUS_UNAVAIL;
+	}
+
+	for(; p != response->data.winsresp; p--) {
+		if(*p == '\t') addrcount++;
+	}
+
+	if(addrcount == 0) {/* it must be broken */
+		argp->h_errno = NO_DATA;
+		return NSS_STATUS_UNAVAIL;
+	}
+
+	/* allocate space for addresses and h_addr_list */
+	he->h_addrtype = af;
+	if( he->h_addrtype == AF_INET) {
+		he->h_length =  sizeof(struct in_addr);
+		addrp = (struct in_addr *)ROUND_DOWN(buffer + buflen,
+						sizeof(struct in_addr));
+		addrp -= addrcount;
+		he->h_addr_list = (char **)ROUND_DOWN(addrp, sizeof (char*));
+		he->h_addr_list -= addrcount+1;
+	}
+#if defined(AF_INET6)
+        else {
+		he->h_length = sizeof(struct in6_addr);
+		addrp6 = (struct in6_addr *)ROUND_DOWN(buffer + buflen,
+						sizeof(struct in6_addr));
+		addrp6 -= addrcount;
+		he->h_addr_list = (char **)ROUND_DOWN(addrp6, sizeof (char*));
+		he->h_addr_list -= addrcount+1;
+	}
+#endif
+
+	/* buffer too small?! */
+	if((char *)he->h_addr_list < buffer ) {
+		argp->erange = 1;
+		return NSS_STR_PARSE_ERANGE;
+	}
+
+	data = response->data.winsresp;
+	for( i = 0; i < addrcount; i++) {
+		p = strchr(data, '\t');
+		if(p == NULL) break; /* just in case... */
+
+		*p = '\0'; /* terminate the string */
+		if(he->h_addrtype == AF_INET) {
+		  he->h_addr_list[i] = (char *)&addrp[i];
+		  if ((addrp[i].s_addr = inet_addr(data)) == -1) {
+		    argp->erange = 1;
+		    return NSS_STR_PARSE_ERANGE;
+		  }
+		}
+#if defined(AF_INET6)
+                else {
+		  he->h_addr_list[i] = (char *)&addrp6[i];
+		  if (strchr(data, ':') != 0) {
+			if (inet_pton(AF_INET6, data, &addrp6[i]) != 1) {
+			  argp->erange = 1;
+			  return NSS_STR_PARSE_ERANGE;
+			}
+		  } else {
+			struct in_addr in4;
+			if ((in4.s_addr = inet_addr(data)) == -1) {
+			  argp->erange = 1;
+			  return NSS_STR_PARSE_ERANGE;
+			}
+			IN6_INADDR_TO_V4MAPPED(&in4, &addrp6[i]);
+		  }
+		}
+#endif
+		data = p+1;
+	}
+
+	he->h_addr_list[i] = (char *)NULL;
+
+	len = strlen(data);
+	if(len > he->h_addr_list - (char**)argp->buf.buffer) {
+		argp->erange = 1;
+		return NSS_STR_PARSE_ERANGE;
+	}
+
+	/* this is a bit overkill to use _nss_netdb_aliases here since
+	   there seems to be no aliases but it will create all data for us */
+	he->h_aliases = _nss_netdb_aliases(data, len, buffer,
+				((char*) he->h_addr_list) - buffer);
+	if(he->h_aliases == NULL) {
+	    argp->erange = 1;
+	    ret = NSS_STR_PARSE_ERANGE;
+	} else {
+	    he->h_name = he->h_aliases[0];
+	    he->h_aliases++;
+	    ret = NSS_STR_PARSE_SUCCESS;
+	}
+
+	argp->returnval = (void*)he;
+	return ret;
+}
+
+static NSS_STATUS
+_nss_winbind_ipnodes_getbyname(nss_backend_t* be, void *args)
+{
+	nss_XbyY_args_t *argp = (nss_XbyY_args_t*) args;
+	struct winbindd_request request = {
+		.wb_flags = WBFLAG_FROM_NSS,
+	};
+	struct winbindd_response response = {
+		.length = 0,
+	};
+	NSS_STATUS ret;
+	int af;
+
+	/* I assume there that AI_ADDRCONFIG cases are handled in nss
+	   frontend code, at least it seems done so in solaris...
+
+	   we will give NO_DATA for pure IPv6; IPv4 will be returned for
+	   AF_INET or for AF_INET6 and AI_ALL|AI_V4MAPPED we have to map
+	   IPv4 to IPv6.
+	 */
+#if defined(AF_INET6)
+#ifdef HAVE_NSS_XBYY_KEY_IPNODE
+	af = argp->key.ipnode.af_family;
+	if(af == AF_INET6 && argp->key.ipnode.flags == 0) {
+		argp->h_errno = NO_DATA;
+		return NSS_STATUS_UNAVAIL;
+	}
+#else
+	/* I'm not that sure if this is correct, but... */
+	af = AF_INET6;
+#endif
+#endif
+
+	strncpy(request.data.winsreq, argp->key.name, sizeof(request.data.winsreq) - 1);
+	request.data.winsreq[sizeof(request.data.winsreq) - 1] = '\0';
+
+	if( (ret = winbindd_request_response(NULL, WINBINDD_WINS_BYNAME,
+					     &request, &response))
+		== NSS_STATUS_SUCCESS ) {
+	  ret = parse_response(af, argp, &response);
+	}
+
+	winbindd_free_response(&response);
+	return ret;
+}
+
+static NSS_STATUS
+_nss_winbind_hosts_getbyname(nss_backend_t* be, void *args)
+{
+	nss_XbyY_args_t *argp = (nss_XbyY_args_t*) args;
+	struct winbindd_request request = {
+		.wb_flags = WBFLAG_FROM_NSS,
+	};
+	struct winbindd_response response = {
+		.length = 0,
+	};
+	NSS_STATUS ret;
+
+	strncpy(request.data.winsreq, argp->key.name, sizeof(request.data.winsreq) - 1);
+	request.data.winsreq[sizeof(request.data.winsreq) - 1] = '\0';
+
+	if( (ret = winbindd_request_response(NULL, WINBINDD_WINS_BYNAME,
+					     &request, &response))
+		== NSS_STATUS_SUCCESS ) {
+	  ret = parse_response(AF_INET, argp, &response);
+	}
+
+	winbindd_free_response(&response);
+	return ret;
+}
+
+static NSS_STATUS
+_nss_winbind_hosts_getbyaddr(nss_backend_t* be, void *args)
+{
+	NSS_STATUS ret;
+	struct winbindd_request request = {
+		.wb_flags = WBFLAG_FROM_NSS,
+	};
+	struct winbindd_response response = {
+		.length = 0,
+	};
+	nss_XbyY_args_t	*argp = (nss_XbyY_args_t *)args;
+	const char *p;
+
+#if defined(AF_INET6)
+	/* winbindd currently does not resolve IPv6 */
+	if(argp->key.hostaddr.type == AF_INET6) {
+		argp->h_errno = NO_DATA;
+		return NSS_STATUS_UNAVAIL;
+	}
+
+	p = inet_ntop(argp->key.hostaddr.type, argp->key.hostaddr.addr,
+			request.data.winsreq, sizeof request.data.winsreq);
+#else
+        snprintf(request.data.winsreq, sizeof request.data.winsreq,
+                "%u.%u.%u.%u",
+                ((unsigned char *)argp->key.hostaddr.addr)[0],
+                ((unsigned char *)argp->key.hostaddr.addr)[1],
+                ((unsigned char *)argp->key.hostaddr.addr)[2],
+                ((unsigned char *)argp->key.hostaddr.addr)[3]);
+#endif
+
+	ret = winbindd_request_response(NULL, WINBINDD_WINS_BYIP,
+					&request, &response);
+
+	if( ret == NSS_STATUS_SUCCESS) {
+	  parse_response(argp->key.hostaddr.type, argp, &response);
+	}
+	winbindd_free_response(&response);
+        return ret;
+}
+
+/* winbind does not provide setent, getent, endent for wins */
+static NSS_STATUS
+_nss_winbind_common_endent(nss_backend_t* be, void *args)
+{
+        return (NSS_STATUS_UNAVAIL);
+}
+
+static NSS_STATUS
+_nss_winbind_common_setent(nss_backend_t* be, void *args)
+{
+        return (NSS_STATUS_UNAVAIL);
+}
+
+static NSS_STATUS
+_nss_winbind_common_getent(nss_backend_t* be, void *args)
+{
+        return (NSS_STATUS_UNAVAIL);
+}
+
+static nss_backend_t*
+_nss_winbind_common_constr (nss_backend_op_t ops[], int n_ops)
+{
+	nss_backend_t* be;
+
+	if(!(be = SMB_MALLOC_P(nss_backend_t)) )
+	return NULL;
+
+	be->ops = ops;
+	be->n_ops = n_ops;
+
+	return be;
+}
+
+static NSS_STATUS
+_nss_winbind_common_destr (nss_backend_t* be, void* args)
+{
+	SAFE_FREE(be);
+	return NSS_STATUS_SUCCESS;
+}
+
+static nss_backend_op_t ipnodes_ops[] = {
+	_nss_winbind_common_destr,
+	_nss_winbind_common_endent,
+	_nss_winbind_common_setent,
+	_nss_winbind_common_getent,
+	_nss_winbind_ipnodes_getbyname,
+	_nss_winbind_hosts_getbyaddr,
+};
+
+nss_backend_t *
+_nss_winbind_ipnodes_constr(dummy1, dummy2, dummy3)
+        const char      *dummy1, *dummy2, *dummy3;
+{
+	return (_nss_winbind_common_constr(ipnodes_ops,
+		sizeof (ipnodes_ops) / sizeof (ipnodes_ops[0])));
+}
+
+static nss_backend_op_t host_ops[] = {
+	_nss_winbind_common_destr,
+	_nss_winbind_common_endent,
+	_nss_winbind_common_setent,
+	_nss_winbind_common_getent,
+	_nss_winbind_hosts_getbyname,
+	_nss_winbind_hosts_getbyaddr,
+};
+
+nss_backend_t *
+_nss_winbind_hosts_constr(dummy1, dummy2, dummy3)
+        const char      *dummy1, *dummy2, *dummy3;
+{
+	return (_nss_winbind_common_constr(host_ops,
+		sizeof (host_ops) / sizeof (host_ops[0])));
+}
+
+#endif	/* defined(SUNOS5) */
+#endif 	/* defined(HAVE_NSS_COMMON_H) || defined(HPUX) */