Winbind client for AIX. Written by Steve Roylance.

(This used to be commit e37d025e6724196925c43c8ce558064ed5c072c5)

1 files changed, 411 insertions, 0 deletions

diff --git a/source3/nsswitch/winbind_nss_aix.c b/source3/nsswitch/winbind_nss_aix.c
index e69de29bb2..ba5332bf98 100644
--- a/source3/nsswitch/winbind_nss_aix.c
+++ b/source3/nsswitch/winbind_nss_aix.c
@@ -0,0 +1,411 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   AIX loadable authentication mmodule, providing identification 
+   routines against Samba winbind/Windows NT Domain
+
+   Copyright (C) Tim Potter 2003
+   Copyright (C) Steve Roylance 2003
+   
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+   
+   This 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 Library General Public
+   License along with this library; if not, write to the
+   Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA  02111-1307, USA.   
+*/
+
+#include <stdlib.h>
+#include <string.h>
+#include <usersec.h>
+#include <errno.h>
+
+#include "winbind_client.h"
+
+#define MAX_GETPWENT_USERS 250
+#define MAX_GETGRENT_USERS 250
+/* #define WB_AIX_DEBUG */
+
+static struct passwd *fill_pwent(struct winbindd_pw *pw)
+{
+	struct passwd *result;
+
+	if (!(result = malloc(sizeof(struct passwd))))
+		goto out;
+		
+	ZERO_STRUCTP(result);
+
+	/* User name */
+
+	if ((result->pw_name = malloc(strlen(pw->pw_name) + 1)) == NULL)
+		goto out;
+	
+	strcpy(result->pw_name, pw->pw_name);
+
+	/* Password */
+
+	if ((result->pw_passwd = malloc(strlen(pw->pw_passwd) + 1)) == NULL)
+		goto out;
+	
+	strcpy(result->pw_passwd, pw->pw_passwd);
+        
+	/* [ug]id */
+
+	result->pw_uid = pw->pw_uid;
+	result->pw_gid = pw->pw_gid;
+
+	/* GECOS */
+
+	if ((result->pw_gecos = malloc(strlen(pw->pw_gecos) + 1)) == NULL)
+		goto out;
+
+	strcpy(result->pw_gecos, pw->pw_gecos);
+	
+	/* Home directory */
+	
+	if ((result->pw_dir = malloc(strlen(pw->pw_dir) + 1)) == NULL)
+		goto out;
+
+	strcpy(result->pw_dir, pw->pw_dir);
+
+	/* Logon shell */
+	
+	if ((result->pw_shell = malloc(strlen(pw->pw_shell) + 1)) == NULL)
+		goto out;
+	
+	strcpy(result->pw_shell, pw->pw_shell);
+#ifdef WB_AIX_DEBUG
+	printf("wb_aix - returning filled pwent %s, %d\n", result->pw_name, result->pw_uid);
+#endif
+	return result;
+	
+	/* A memory allocation failed, undo succesfull allocations and
+           return NULL */
+
+out:
+	SAFE_FREE(result->pw_dir);
+	SAFE_FREE(result->pw_gecos);
+	SAFE_FREE(result->pw_passwd);
+	SAFE_FREE(result->pw_name);
+	SAFE_FREE(result);	
+
+	return NULL;
+}
+
+static BOOL next_token(char **ptr,char *buff,char *sep, size_t bufsize)
+{
+	char *s;
+	BOOL quoted;
+	size_t len=1;
+
+	if (!ptr) return(False);
+
+	s = *ptr;
+
+	/* default to simple separators */
+	if (!sep) sep = " \t\n\r";
+
+	/* find the first non sep char */
+	while (*s && strchr(sep,*s)) s++;
+	
+	/* nothing left? */
+	if (! *s) return(False);
+	
+	/* copy over the token */
+	for (quoted = False; len < bufsize && *s && (quoted || !strchr(sep,*s)); s++) {
+		if (*s == '\"') {
+			quoted = !quoted;
+		} else {
+			len++;
+			*buff++ = *s;
+		}
+	}
+	
+	*ptr = (*s) ? s+1 : s;  
+	*buff = 0;
+	
+	return(True);
+}
+
+static struct group *fill_grent(struct winbindd_gr *gr, char *gr_mem)
+{
+	fstring name;
+	int i;
+	char *tst;
+	struct group *result;
+	
+	if (!(result = malloc(sizeof(struct group))))
+		goto out;
+
+	ZERO_STRUCTP(result);
+
+	/* Group name */
+
+	if ((result->gr_name = malloc(strlen(gr->gr_name) + 1)) == NULL)
+		goto out;
+
+	strcpy(result->gr_name, gr->gr_name);
+
+	/* Password */
+
+	if ((result->gr_passwd = malloc(strlen(gr->gr_passwd) + 1)) == NULL)
+		goto out;
+
+	strcpy(result->gr_passwd, gr->gr_passwd);
+
+	/* gid */
+
+	result->gr_gid = gr->gr_gid;
+
+	/* Group membership */
+
+	if ((gr->num_gr_mem < 0) || !gr_mem) {
+		gr->num_gr_mem = 0;
+	}
+	
+	if (gr->num_gr_mem == 0) {
+
+		/* Group is empty */
+		
+		*(result->gr_mem) = NULL;
+		return result;
+	}
+	
+	if ((tst = malloc(((gr->num_gr_mem + 1) * sizeof(char *)))) == NULL)
+		goto out;
+		
+	result->gr_mem = (char **)tst;
+
+	/* Start looking at extra data */
+
+	i = 0;
+
+	while(next_token((char **)&gr_mem, name, ",", sizeof(fstring))) {
+        
+		/* Allocate space for member */
+        
+		if (((result->gr_mem)[i] = 
+		     malloc(strlen(name) + 1)) == NULL) {
+            		for ( i -= 1; i >= 0; i--)
+				SAFE_FREE((result->gr_mem)[i]);
+			goto out;
+
+		}        
+        
+		strcpy((result->gr_mem)[i], name);
+		i++;
+	}
+
+	/* Terminate list */
+
+	(result->gr_mem)[i] = NULL;
+
+#ifdef WB_AIX_DEBUG
+	printf("wb_aix - returning filled grent %s, %d\n", result->gr_name, result->gr_gid);
+#endif
+	return result;
+	
+	/* A memory allocation failed, undo succesfull allocations and
+           return NULL */
+
+out:
+	SAFE_FREE(tst);
+	SAFE_FREE(result->gr_passwd);
+	SAFE_FREE(result->gr_name);
+	SAFE_FREE(result);
+
+	return NULL;
+}
+
+
+
+static struct group *
+wb_aix_getgrgid (gid_t gid)
+{
+/* take a group id and return a filled struct group */
+	
+	struct winbindd_response response;
+	struct winbindd_request request;
+
+	ZERO_STRUCT(response);
+	ZERO_STRUCT(request);
+#ifdef WB_AIX_DEBUG
+	printf("wb_aix - getgrid for %d\n", gid);
+#endif
+	
+	request.data.gid = gid;
+
+	if (winbindd_request(WINBINDD_GETGRGID, &request, &response)
+			== NSS_STATUS_SUCCESS) {
+#ifdef WB_AIX_DEBUG
+		printf("wb_aix - returned from winbind_request\n");
+#endif
+		return fill_grent(&response.data.gr, response.extra_data);
+	}
+	
+	return NULL;
+}
+
+static struct group *
+wb_aix_getgrnam (const char *name)
+{
+/* take a group name and return a filled struct group */
+
+	struct winbindd_response response;
+	struct winbindd_request request;
+	
+	ZERO_STRUCT(response);
+	ZERO_STRUCT(request);
+
+#ifdef WB_AIX_DEBUG
+	printf("wb_aix - getgrnam for %s\n", name);
+#endif
+
+	strncpy(request.data.groupname, name, 
+		sizeof(request.data.groupname));
+	request.data.groupname
+		[sizeof(request.data.groupname) - 1] = '\0';
+
+
+	if (winbindd_request(WINBINDD_GETGRNAM, &request, &response)
+			== NSS_STATUS_SUCCESS) {
+#ifdef WB_AIX_DEBUG
+		printf("wb_aix - returned from winbind_request\n");
+#endif
+		return fill_grent(&response.data.gr, response.extra_data);
+	}	
+	return NULL;	
+}
+
+static char *
+wb_aix_getgrset (const char *user)
+{
+/* 	take a username and return a string containing a comma-separated list of 
+	group id numbers to which the user belongs */
+	
+	struct winbindd_response response;
+	struct winbindd_request request;
+	
+	char *tmpbuf, *result;
+	int i, idx = 0;
+
+#ifdef WB_AIX_DEBUG
+	printf("wb_aix - getgrset for %s\n", user);
+#endif
+	strncpy(request.data.username, user, 
+		sizeof(request.data.username) - 1);
+	request.data.username
+		[sizeof(request.data.username) - 1] = '\0';
+
+	
+	if (winbindd_request(WINBINDD_GETGROUPS, &request, &response)
+			== NSS_STATUS_SUCCESS) {
+		int num_gids = response.data.num_entries;
+		gid_t *gid_list = (gid_t *)response.extra_data;
+#ifdef WB_AIX_DEBUG
+		printf("wb_aix - returned from winbind_request\n");
+#endif
+		
+		/* allocate a space large enough to contruct the string */
+		if (!(tmpbuf = malloc(num_gids*12))) {
+			return NULL;
+		}
+		idx += sprintf(tmpbuf, "%d", gid_list[0]);
+		for (i = 1; i < num_gids; i++) {
+			tmpbuf[idx++] = ',';
+			idx += sprintf(tmpbuf+idx, "%d", gid_list[i]);	
+		}
+		tmpbuf[idx] = '\0';
+		if (!(result = malloc(idx+1))) {
+			/* 	allocate a string the right size to return, but
+				if that fails may as well return our working buffer
+				because it contains the same thing */
+			return tmpbuf;
+		}
+		strcpy(result, tmpbuf);
+		SAFE_FREE(tmpbuf);
+		return result;
+	}
+	return NULL;
+}
+
+static struct passwd *
+wb_aix_getpwuid (uid_t uid)
+{
+/* take a uid and return a filled struct passwd */
+	
+	struct winbindd_response response;
+	struct winbindd_request request;
+	
+	ZERO_STRUCT(response);
+	ZERO_STRUCT(request);
+
+#ifdef WB_AIX_DEBUG
+	printf("wb_aix - getpwid for %d\n", uid);
+#endif
+		
+	request.data.uid = uid;
+		
+	if (winbindd_request(WINBINDD_GETPWUID, &request, &response)
+			== NSS_STATUS_SUCCESS) {
+#ifdef WB_AIX_DEBUG
+		printf("wb_aix - returned from winbind_request\n");
+#endif
+		return fill_pwent(&response.data.pw);
+	}
+	return NULL;	
+}
+
+static struct passwd *
+wb_aix_getpwnam (const char *name)
+{
+/* take a username and return a filled struct passwd */
+
+	struct winbindd_response response;
+	struct winbindd_request request;
+	
+	ZERO_STRUCT(response);
+	ZERO_STRUCT(request);
+#ifdef WB_AIX_DEBUG
+	printf("wb_aix - getpwnam for %s\n", name);
+#endif
+	strncpy(request.data.username, name, 
+		sizeof(request.data.username) - 1);
+	request.data.username
+		[sizeof(request.data.username) - 1] = '\0';
+
+
+	if (winbindd_request(WINBINDD_GETPWNAM, &request, &response)
+			== NSS_STATUS_SUCCESS) {
+#ifdef WB_AIX_DEBUG
+		printf("wb_aix - returned from winbind_request\n");
+#endif		
+	return fill_pwent(&response.data.pw);
+	}
+	return NULL;
+}
+
+int
+wb_aix_init (struct secmethod_table *methods)
+{
+	memset(methods, 0, sizeof(*methods));
+
+	/* identification methods, this is the minimum requried for a
+	working module */
+    
+	methods->method_getgrgid = wb_aix_getgrgid;
+	methods->method_getgrnam = wb_aix_getgrnam;
+	methods->method_getgrset = wb_aix_getgrset;
+	methods->method_getpwnam = wb_aix_getpwnam;
+	methods->method_getpwuid = wb_aix_getpwuid;
+
+	return AUTH_SUCCESS;
+}