Cleanup of winbind client side code.

Mostly this consists of untangling the existing code and moving it in
to operating system specific files.  The winbind client code for all
supported operating systems is now in nsswitch/winbind_nss_OSNAME.[ch]
to make things a bit clearer.
(This used to be commit 93ea047a16a292b23a1d8736ce9bc4098ba142ba)

1 files changed, 515 insertions, 0 deletions

diff --git a/source3/nsswitch/winbind_nss_irix.c b/source3/nsswitch/winbind_nss_irix.c
new file mode 100644
index 00000000000..3a9d6c01ab5
--- /dev/null
+++ b/source3/nsswitch/winbind_nss_irix.c
@@ -0,0 +1,515 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   Windows NT Domain nsswitch module
+
+   Copyright (C) Tim Potter 2000
+   
+   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 "winbind_client.h"
+
+#ifdef HAVE_NS_API_H
+#undef VOLATILE
+#include <ns_daemon.h>
+#endif
+
+/* Maximum number of users to pass back over the unix domain socket
+   per call. This is not a static limit on the total number of users 
+   or groups returned in total. */
+
+#define MAX_GETPWENT_USERS 250
+#define MAX_GETGRENT_USERS 250
+
+/* Prototypes from wb_common.c */
+
+extern int winbindd_fd;
+
+#ifdef HAVE_NS_API_H
+
+/* IRIX version */
+
+static int send_next_request(nsd_file_t *, struct winbindd_request *);
+static int do_list(int state, nsd_file_t *rq);
+
+static nsd_file_t *current_rq = NULL;
+static int current_winbind_xid = 0;
+static int next_winbind_xid = 0;
+
+typedef struct winbind_xid {
+	int			xid;
+	nsd_file_t		*rq;
+	struct winbindd_request *request;
+	struct winbind_xid	*next;
+} winbind_xid_t;
+
+static winbind_xid_t *winbind_xids = (winbind_xid_t *)0;
+
+static int
+winbind_xid_new(int xid, nsd_file_t *rq, struct winbindd_request *request)
+{
+	winbind_xid_t *new;
+
+	nsd_logprintf(NSD_LOG_LOW,
+		"entering winbind_xid_new xid = %d rq = 0x%x, request = 0x%x\n",
+		xid, rq, request);
+	new = (winbind_xid_t *)nsd_calloc(1,sizeof(winbind_xid_t));
+	if (!new) {
+		nsd_logprintf(NSD_LOG_RESOURCE,"winbind_xid_new: failed malloc\n");
+		return NSD_ERROR;
+	}
+
+	new->xid = xid;
+	new->rq = rq;
+	new->request = request;
+	new->next = winbind_xids;
+	winbind_xids = new;
+
+	return NSD_CONTINUE;
+}
+
+/*
+** This routine will look down the xid list and return the request
+** associated with an xid.  We remove the record if it is found.
+*/
+nsd_file_t *
+winbind_xid_lookup(int xid, struct winbindd_request **requestp)
+{
+        winbind_xid_t **last, *dx;
+        nsd_file_t *result=0;
+
+        for (last = &winbind_xids, dx = winbind_xids; dx && (dx->xid != xid);
+            last = &dx->next, dx = dx->next);
+        if (dx) {
+                *last = dx->next;
+                result = dx->rq;
+		*requestp = dx->request;
+                SAFE_FREE(dx);
+        }
+	nsd_logprintf(NSD_LOG_LOW,
+		"entering winbind_xid_lookup xid = %d rq = 0x%x, request = 0x%x\n",
+		xid, result, dx->request);
+
+        return result;
+}
+
+static int
+winbind_startnext_timeout(nsd_file_t **rqp, nsd_times_t *to)
+{
+	nsd_file_t *rq;
+	struct winbindd_request *request;
+
+	nsd_logprintf(NSD_LOG_MIN, "timeout (winbind startnext)\n");
+	rq = to->t_file;
+	*rqp = rq;
+	nsd_timeout_remove(rq);
+	request = to->t_clientdata;
+	return(send_next_request(rq, request));
+}
+
+static void
+dequeue_request()
+{
+	nsd_file_t *rq;
+	struct winbindd_request *request;
+
+	/*
+	 * Check for queued requests
+	 */
+	if (winbind_xids) {
+	    nsd_logprintf(NSD_LOG_MIN, "timeout (winbind) unqueue xid %d\n",
+			current_winbind_xid);
+	    rq = winbind_xid_lookup(current_winbind_xid++, &request);
+	    /* cause a timeout on the queued request so we can send it */
+	    nsd_timeout_new(rq,1,winbind_startnext_timeout,request);
+	}
+}
+
+static int
+do_request(nsd_file_t *rq, struct winbindd_request *request)
+{
+	if (winbind_xids == NULL) {
+		/*
+		 * No outstanding requests.
+		 * Send off the request to winbindd
+		 */
+		nsd_logprintf(NSD_LOG_MIN, "lookup (winbind) sending request\n");
+		return(send_next_request(rq, request));
+	} else {
+		/*
+		 * Just queue it up for now - previous callout or timout
+		 * will start it up
+		 */
+		nsd_logprintf(NSD_LOG_MIN,
+			"lookup (winbind): queue request xid = %d\n",
+			next_winbind_xid);
+		return(winbind_xid_new(next_winbind_xid++, rq, request));
+	}
+}
+
+static int 
+winbind_callback(nsd_file_t **rqp, int fd)
+{
+	struct winbindd_response response;
+	struct winbindd_pw *pw = &response.data.pw;
+	struct winbindd_gr *gr = &response.data.gr;
+	nsd_file_t *rq;
+	NSS_STATUS status;
+	fstring result;
+	char *members;
+	int i, maxlen;
+
+	dequeue_request();
+
+	nsd_logprintf(NSD_LOG_MIN, "entering callback (winbind)\n");
+
+	rq = current_rq;
+	*rqp = rq;
+
+	nsd_timeout_remove(rq);
+	nsd_callback_remove(fd);
+
+	ZERO_STRUCT(response);
+	status = winbindd_get_response(&response);
+
+	if (status != NSS_STATUS_SUCCESS) {
+		/* free any extra data area in response structure */
+		free_response(&response);
+		nsd_logprintf(NSD_LOG_MIN, 
+			"callback (winbind) returning not found, status = %d\n",
+			status);
+		rq->f_status = NS_NOTFOUND;
+		return NSD_NEXT;
+	}
+
+	maxlen = sizeof(result) - 1;
+
+	switch ((int)rq->f_cmd_data) {
+	    case WINBINDD_WINS_BYNAME:
+	    case WINBINDD_WINS_BYIP:
+		snprintf(result,maxlen,"%s\n",response.data.winsresp);
+		break;
+	    case WINBINDD_GETPWUID:
+	    case WINBINDD_GETPWNAM:
+		snprintf(result,maxlen,"%s:%s:%d:%d:%s:%s:%s\n",
+			pw->pw_name,
+			pw->pw_passwd,
+			pw->pw_uid,
+			pw->pw_gid,
+			pw->pw_gecos,
+			pw->pw_dir,
+			pw->pw_shell);
+		break;
+	    case WINBINDD_GETGRNAM:
+	    case WINBINDD_GETGRGID:
+		if (gr->num_gr_mem && response.extra_data)
+			members = response.extra_data;
+		else
+			members = "";
+		snprintf(result,maxlen,"%s:%s:%d:%s\n",
+			gr->gr_name, gr->gr_passwd, gr->gr_gid, members);
+		break;
+	    case WINBINDD_SETGRENT:
+	    case WINBINDD_SETPWENT:
+		nsd_logprintf(NSD_LOG_MIN, "callback (winbind) - SETPWENT/SETGRENT\n");
+		free_response(&response);
+		return(do_list(1,rq));
+	    case WINBINDD_GETGRENT:
+	    case WINBINDD_GETGRLST:
+		nsd_logprintf(NSD_LOG_MIN, 
+			"callback (winbind) - %d GETGRENT responses\n",
+			response.data.num_entries);
+		if (response.data.num_entries) {
+		    gr = (struct winbindd_gr *)response.extra_data;
+		    if (! gr ) {
+			nsd_logprintf(NSD_LOG_MIN, "     no extra_data\n");
+			free_response(&response);
+			return NSD_ERROR;
+		    }
+		    members = (char *)response.extra_data + 
+				(response.data.num_entries * sizeof(struct winbindd_gr));
+		    for (i = 0; i < response.data.num_entries; i++) {
+			snprintf(result,maxlen,"%s:%s:%d:%s\n",
+				gr->gr_name, gr->gr_passwd, gr->gr_gid, 
+				&members[gr->gr_mem_ofs]);
+			nsd_logprintf(NSD_LOG_MIN, "     GETGRENT %s\n",result);
+			nsd_append_element(rq,NS_SUCCESS,result,strlen(result));
+			gr++;
+		    }
+		}
+		i = response.data.num_entries;
+		free_response(&response);
+		if (i < MAX_GETPWENT_USERS)
+		    return(do_list(2,rq));
+		else
+		    return(do_list(1,rq));
+	    case WINBINDD_GETPWENT:
+		nsd_logprintf(NSD_LOG_MIN, 
+			"callback (winbind) - %d GETPWENT responses\n",
+			response.data.num_entries);
+		if (response.data.num_entries) {
+		    pw = (struct winbindd_pw *)response.extra_data;
+		    if (! pw ) {
+			nsd_logprintf(NSD_LOG_MIN, "     no extra_data\n");
+			free_response(&response);
+			return NSD_ERROR;
+		    }
+		    for (i = 0; i < response.data.num_entries; i++) {
+			snprintf(result,maxlen,"%s:%s:%d:%d:%s:%s:%s",
+				pw->pw_name,
+				pw->pw_passwd,
+				pw->pw_uid,
+				pw->pw_gid,
+				pw->pw_gecos,
+				pw->pw_dir,
+				pw->pw_shell);
+			nsd_logprintf(NSD_LOG_MIN, "     GETPWENT %s\n",result);
+			nsd_append_element(rq,NS_SUCCESS,result,strlen(result));
+			pw++;
+		    }
+		}
+		i = response.data.num_entries;
+		free_response(&response);
+		if (i < MAX_GETPWENT_USERS)
+		    return(do_list(2,rq));
+		else
+		    return(do_list(1,rq));
+	    case WINBINDD_ENDGRENT:
+	    case WINBINDD_ENDPWENT:
+		nsd_logprintf(NSD_LOG_MIN, "callback (winbind) - ENDPWENT/ENDGRENT\n");
+		nsd_append_element(rq,NS_SUCCESS,"\n",1);
+		free_response(&response);
+		return NSD_NEXT;
+	    default:
+		free_response(&response);
+		nsd_logprintf(NSD_LOG_MIN, "callback (winbind) - no valid command\n");
+		return NSD_NEXT;
+	}
+	nsd_logprintf(NSD_LOG_MIN, "callback (winbind) %s\n", result);
+	/* free any extra data area in response structure */
+	free_response(&response);
+	nsd_set_result(rq,NS_SUCCESS,result,strlen(result),VOLATILE);
+	return NSD_OK;
+}
+
+static int 
+winbind_timeout(nsd_file_t **rqp, nsd_times_t *to)
+{
+	nsd_file_t *rq;
+
+	dequeue_request();
+
+	nsd_logprintf(NSD_LOG_MIN, "timeout (winbind)\n");
+
+	rq = to->t_file;
+	*rqp = rq;
+
+	/* Remove the callback and timeout */
+	nsd_callback_remove(winbindd_fd);
+	nsd_timeout_remove(rq);
+
+	rq->f_status = NS_NOTFOUND;
+	return NSD_NEXT;
+}
+
+static int
+send_next_request(nsd_file_t *rq, struct winbindd_request *request)
+{
+	NSS_STATUS status;
+	long timeout;
+
+	timeout = 1000;
+
+	nsd_logprintf(NSD_LOG_MIN, "send_next_request (winbind) %d to = %d\n",
+			rq->f_cmd_data, timeout);
+	status = winbindd_send_request((int)rq->f_cmd_data,request);
+	SAFE_FREE(request);
+
+	if (status != NSS_STATUS_SUCCESS) {
+		nsd_logprintf(NSD_LOG_MIN, 
+			"send_next_request (winbind) error status = %d\n",status);
+		rq->f_status = status;
+		return NSD_NEXT;
+	}
+
+	current_rq = rq;
+
+	/*
+	 * Set up callback and timeouts
+	 */
+	nsd_logprintf(NSD_LOG_MIN, "send_next_request (winbind) fd = %d\n",winbindd_fd);
+	nsd_callback_new(winbindd_fd,winbind_callback,NSD_READ);
+	nsd_timeout_new(rq,timeout,winbind_timeout,(void *)0);
+	return NSD_CONTINUE;
+}
+
+int init(void)
+{
+	nsd_logprintf(NSD_LOG_MIN, "entering init (winbind)\n");
+	return(NSD_OK);
+}
+
+int lookup(nsd_file_t *rq)
+{
+	char *map;
+	char *key;
+	struct winbindd_request *request;
+
+	nsd_logprintf(NSD_LOG_MIN, "entering lookup (winbind)\n");
+	if (! rq)
+		return NSD_ERROR;
+
+	map = nsd_attr_fetch_string(rq->f_attrs, "table", (char*)0);
+	key = nsd_attr_fetch_string(rq->f_attrs, "key", (char*)0);
+	if (! map || ! key) {
+		nsd_logprintf(NSD_LOG_MIN, "lookup (winbind) table or key not defined\n");
+		rq->f_status = NS_BADREQ;
+		return NSD_ERROR;
+	}
+
+	nsd_logprintf(NSD_LOG_MIN, "lookup (winbind %s)\n",map);
+
+	request = (struct winbindd_request *)nsd_calloc(1,sizeof(struct winbindd_request));
+	if (! request) {
+		nsd_logprintf(NSD_LOG_RESOURCE,
+			"lookup (winbind): failed malloc\n");
+		return NSD_ERROR;
+	}
+
+	if (strcasecmp(map,"passwd.byuid") == 0) {
+	    request->data.uid = atoi(key);
+	    rq->f_cmd_data = (void *)WINBINDD_GETPWUID;
+	} else if (strcasecmp(map,"passwd.byname") == 0) {
+	    strncpy(request->data.username, key, 
+		sizeof(request->data.username) - 1);
+	    request->data.username[sizeof(request->data.username) - 1] = '\0';
+	    rq->f_cmd_data = (void *)WINBINDD_GETPWNAM; 
+	} else if (strcasecmp(map,"group.byname") == 0) {
+	    strncpy(request->data.groupname, key, 
+		sizeof(request->data.groupname) - 1);
+	    request->data.groupname[sizeof(request->data.groupname) - 1] = '\0';
+	    rq->f_cmd_data = (void *)WINBINDD_GETGRNAM; 
+	} else if (strcasecmp(map,"group.bygid") == 0) {
+	    request->data.gid = atoi(key);
+	    rq->f_cmd_data = (void *)WINBINDD_GETGRGID;
+	} else if (strcasecmp(map,"hosts.byname") == 0) {
+	    strncpy(request->data.winsreq, key, sizeof(request->data.winsreq) - 1);
+	    request->data.winsreq[sizeof(request->data.winsreq) - 1] = '\0';
+	    rq->f_cmd_data = (void *)WINBINDD_WINS_BYNAME;
+	} else if (strcasecmp(map,"hosts.byaddr") == 0) {
+	    strncpy(request->data.winsreq, key, sizeof(request->data.winsreq) - 1);
+	    request->data.winsreq[sizeof(request->data.winsreq) - 1] = '\0';
+	    rq->f_cmd_data = (void *)WINBINDD_WINS_BYIP;
+	} else {
+		/*
+		 * Don't understand this map - just return not found
+		 */
+		nsd_logprintf(NSD_LOG_MIN, "lookup (winbind) unknown table\n");
+		SAFE_FREE(request);
+		rq->f_status = NS_NOTFOUND;
+		return NSD_NEXT;
+	}
+
+	return(do_request(rq, request));
+}
+
+int list(nsd_file_t *rq)
+{
+	char *map;
+
+	nsd_logprintf(NSD_LOG_MIN, "entering list (winbind)\n");
+	if (! rq)
+		return NSD_ERROR;
+
+	map = nsd_attr_fetch_string(rq->f_attrs, "table", (char*)0);
+	if (! map ) {
+		nsd_logprintf(NSD_LOG_MIN, "list (winbind) table not defined\n");
+		rq->f_status = NS_BADREQ;
+		return NSD_ERROR;
+	}
+
+	nsd_logprintf(NSD_LOG_MIN, "list (winbind %s)\n",map);
+
+	return (do_list(0,rq));
+}
+
+static int
+do_list(int state, nsd_file_t *rq)
+{
+	char *map;
+	struct winbindd_request *request;
+
+	nsd_logprintf(NSD_LOG_MIN, "entering do_list (winbind) state = %d\n",state);
+
+	map = nsd_attr_fetch_string(rq->f_attrs, "table", (char*)0);
+	request = (struct winbindd_request *)nsd_calloc(1,sizeof(struct winbindd_request));
+	if (! request) {
+		nsd_logprintf(NSD_LOG_RESOURCE,
+			"do_list (winbind): failed malloc\n");
+		return NSD_ERROR;
+	}
+
+	if (strcasecmp(map,"passwd.byname") == 0) {
+	    switch (state) {
+		case 0:
+		    rq->f_cmd_data = (void *)WINBINDD_SETPWENT;
+		    break;
+		case 1:
+		    request->data.num_entries = MAX_GETPWENT_USERS;
+		    rq->f_cmd_data = (void *)WINBINDD_GETPWENT;
+		    break;
+		case 2:
+		    rq->f_cmd_data = (void *)WINBINDD_ENDPWENT;
+		    break;
+		default:
+		    nsd_logprintf(NSD_LOG_MIN, "do_list (winbind) unknown state\n");
+		    SAFE_FREE(request);
+		    rq->f_status = NS_NOTFOUND;
+		    return NSD_NEXT;
+	    }
+	} else if (strcasecmp(map,"group.byname") == 0) {
+	    switch (state) {
+		case 0:
+		    rq->f_cmd_data = (void *)WINBINDD_SETGRENT;
+		    break;
+		case 1:
+		    request->data.num_entries = MAX_GETGRENT_USERS;
+		    rq->f_cmd_data = (void *)WINBINDD_GETGRENT;
+		    break;
+		case 2:
+		    rq->f_cmd_data = (void *)WINBINDD_ENDGRENT;
+		    break;
+		default:
+		    nsd_logprintf(NSD_LOG_MIN, "do_list (winbind) unknown state\n");
+		    SAFE_FREE(request);
+		    rq->f_status = NS_NOTFOUND;
+		    return NSD_NEXT;
+	    }
+	} else {
+		/*
+		 * Don't understand this map - just return not found
+		 */
+		nsd_logprintf(NSD_LOG_MIN, "do_list (winbind) unknown table\n");
+		SAFE_FREE(request);
+		rq->f_status = NS_NOTFOUND;
+		return NSD_NEXT;
+	}
+
+	return(do_request(rq, request));
+}
+
+#endif /* HAVE_NS_API_H */