X-Git-Url: http://git.maemo.org/git/?p=samba;a=blobdiff_plain;f=source%2Flib%2Fsysquotas.c;fp=source%2Flib%2Fsysquotas.c;h=c1ab6ef8cfab2cd9606edb3149fe85234321a9ec;hp=0000000000000000000000000000000000000000;hb=6bca4ca307d55b6dc888e56cee47aebcddbce786;hpb=7fd70fa738b636089bcc6c961aa3eaa02f20dda2

diff --git a/source/lib/sysquotas.c b/source/lib/sysquotas.c
new file mode 100644
index 0000000..c1ab6ef
--- /dev/null
+++ b/source/lib/sysquotas.c
@@ -0,0 +1,510 @@
+/* 
+   Unix SMB/CIFS implementation.
+   System QUOTA function wrappers
+   Copyright (C) Stefan (metze) Metzmacher	2003
+   
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+   
+   This program 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 General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+
+#include "includes.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_QUOTA
+
+#ifdef HAVE_SYS_QUOTAS
+
+#if defined(HAVE_QUOTACTL_4A) 
+
+/*#endif HAVE_QUOTACTL_4A */
+#elif defined(HAVE_QUOTACTL_4B)
+
+#error HAVE_QUOTACTL_4B not implemeted
+
+/*#endif HAVE_QUOTACTL_4B */
+#elif defined(HAVE_QUOTACTL_3)
+
+#error HAVE_QUOTACTL_3 not implemented
+
+/* #endif  HAVE_QUOTACTL_3 */
+#else /* NO_QUOTACTL_USED */
+
+#endif /* NO_QUOTACTL_USED */
+
+#ifdef HAVE_MNTENT
+static int sys_path_to_bdev(const char *path, char **mntpath, char **bdev, char **fs)
+{
+	int ret = -1;
+	SMB_STRUCT_STAT S;
+	FILE *fp;
+	struct mntent *mnt;
+	SMB_DEV_T devno;
+
+	/* find the block device file */
+
+	if (!path||!mntpath||!bdev||!fs)
+		smb_panic("sys_path_to_bdev: called with NULL pointer");
+
+	(*mntpath) = NULL;
+	(*bdev) = NULL;
+	(*fs) = NULL;
+	
+	if ( sys_stat(path, &S) == -1 )
+		return (-1);
+
+	devno = S.st_dev ;
+
+	fp = setmntent(MOUNTED,"r");
+	if (fp == NULL) {
+		return -1;
+	}
+  
+	while ((mnt = getmntent(fp))) {
+		if ( sys_stat(mnt->mnt_dir,&S) == -1 )
+			continue ;
+
+		if (S.st_dev == devno) {
+			(*mntpath) = SMB_STRDUP(mnt->mnt_dir);
+			(*bdev) = SMB_STRDUP(mnt->mnt_fsname);
+			(*fs)   = SMB_STRDUP(mnt->mnt_type);
+			if ((*mntpath)&&(*bdev)&&(*fs)) {
+				ret = 0;
+			} else {
+				SAFE_FREE(*mntpath);
+				SAFE_FREE(*bdev);
+				SAFE_FREE(*fs);
+				ret = -1;
+			}
+
+			break;
+		}
+	}
+
+	endmntent(fp) ;
+
+	return ret;
+}
+/* #endif HAVE_MNTENT */
+#elif defined(HAVE_DEVNM)
+
+/* we have this on HPUX, ... */
+static int sys_path_to_bdev(const char *path, char **mntpath, char **bdev, char **fs)
+{
+	int ret = -1;
+	char dev_disk[256];
+	SMB_STRUCT_STAT S;
+
+	if (!path||!mntpath||!bdev||!fs)
+		smb_panic("sys_path_to_bdev: called with NULL pointer");
+
+	(*mntpath) = NULL;
+	(*bdev) = NULL;
+	(*fs) = NULL;
+	
+	/* find the block device file */
+
+	if ((ret=sys_stat(path, &S))!=0) {
+		return ret;
+	}
+	
+	if ((ret=devnm(S_IFBLK, S.st_dev, dev_disk, 256, 1))!=0) {
+		return ret;	
+	}
+
+	/* we should get the mntpath right...
+	 * but I don't know how
+	 * --metze
+	 */
+	(*mntpath) = SMB_STRDUP(path);
+	(*bdev) = SMB_STRDUP(dev_disk);
+	if ((*mntpath)&&(*bdev)) {
+		ret = 0;
+	} else {
+		SAFE_FREE(*mntpath);
+		SAFE_FREE(*bdev);
+		ret = -1;
+	}	
+	
+	
+	return ret;	
+}
+
+/* #endif HAVE_DEVNM */
+#else
+/* we should fake this up...*/
+static int sys_path_to_bdev(const char *path, char **mntpath, char **bdev, char **fs)
+{
+	int ret = -1;
+
+	if (!path||!mntpath||!bdev||!fs)
+		smb_panic("sys_path_to_bdev: called with NULL pointer");
+
+	(*mntpath) = NULL;
+	(*bdev) = NULL;
+	(*fs) = NULL;
+	
+	(*mntpath) = SMB_STRDUP(path);
+	if (*mntpath) {
+		ret = 0;
+	} else {
+		SAFE_FREE(*mntpath);
+		ret = -1;
+	}
+
+	return ret;
+}
+#endif
+
+/*********************************************************************
+ Now the list of all filesystem specific quota systems we have found
+**********************************************************************/
+static struct {
+	const char *name;
+	int (*get_quota)(const char *path, const char *bdev, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dp);
+	int (*set_quota)(const char *path, const char *bdev, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dp);
+} sys_quota_backends[] = {
+#ifdef HAVE_XFS_QUOTAS
+	{"xfs", sys_get_xfs_quota, 	sys_set_xfs_quota},
+#endif /* HAVE_XFS_QUOTAS */
+	{NULL, 	NULL, 			NULL}	
+};
+
+static int command_get_quota(const char *path, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dp)
+{
+	const char *get_quota_command;
+	
+	get_quota_command = lp_get_quota_command();
+	if (get_quota_command && *get_quota_command) {
+		const char *p;
+		char *p2;
+		char **lines;
+		pstring syscmd;
+		int _id = -1;
+
+		switch(qtype) {
+			case SMB_USER_QUOTA_TYPE:
+			case SMB_USER_FS_QUOTA_TYPE:
+				_id = id.uid;
+				break;
+			case SMB_GROUP_QUOTA_TYPE:
+			case SMB_GROUP_FS_QUOTA_TYPE:
+				_id = id.gid;
+				break;
+			default:
+				DEBUG(0,("invalid quota type.\n"));
+				return -1;
+		}
+
+		slprintf(syscmd, sizeof(syscmd)-1, 
+			"%s \"%s\" %d %d", 
+			get_quota_command, path, qtype, _id);
+
+		DEBUG (3, ("get_quota: Running command %s\n", syscmd));
+
+		lines = file_lines_pload(syscmd, NULL);
+		if (lines) {
+			char *line = lines[0];
+
+			DEBUG (3, ("Read output from get_quota, \"%s\"\n", line));
+
+			/* we need to deal with long long unsigned here, if supported */
+
+			dp->qflags = (enum SMB_QUOTA_TYPE)strtoul(line, &p2, 10);
+			p = p2;
+			while (p && *p && isspace(*p))
+				p++;
+			if (p && *p)
+				dp->curblocks = STR_TO_SMB_BIG_UINT(p, &p);
+			else 
+				goto invalid_param;
+			while (p && *p && isspace(*p))
+				p++;
+			if (p && *p)
+				dp->softlimit = STR_TO_SMB_BIG_UINT(p, &p);
+			else
+				goto invalid_param;
+			while (p && *p && isspace(*p))
+				p++;
+			if (p && *p)
+				dp->hardlimit = STR_TO_SMB_BIG_UINT(p, &p);
+			else 
+				goto invalid_param;
+			while (p && *p && isspace(*p))
+				p++;
+			if (p && *p)
+				dp->curinodes = STR_TO_SMB_BIG_UINT(p, &p);
+			else
+				goto invalid_param;
+			while (p && *p && isspace(*p))
+				p++;
+			if (p && *p)
+				dp->isoftlimit = STR_TO_SMB_BIG_UINT(p, &p);
+			else
+				goto invalid_param;
+			while (p && *p && isspace(*p))
+				p++;
+			if (p && *p)
+				dp->ihardlimit = STR_TO_SMB_BIG_UINT(p, &p);
+			else
+				goto invalid_param;	
+			while (p && *p && isspace(*p))
+				p++;
+			if (p && *p)
+				dp->bsize = STR_TO_SMB_BIG_UINT(p, NULL);
+			else
+				dp->bsize = 1024;
+			file_lines_free(lines);
+			DEBUG (3, ("Parsed output of get_quota, ...\n"));
+
+#ifdef LARGE_SMB_OFF_T
+			DEBUGADD (5,( 
+				"qflags:%u curblocks:%llu softlimit:%llu hardlimit:%llu\n"
+				"curinodes:%llu isoftlimit:%llu ihardlimit:%llu bsize:%llu\n", 
+				dp->qflags,(long long unsigned)dp->curblocks,
+				(long long unsigned)dp->softlimit,(long long unsigned)dp->hardlimit,
+				(long long unsigned)dp->curinodes,
+				(long long unsigned)dp->isoftlimit,(long long unsigned)dp->ihardlimit,
+				(long long unsigned)dp->bsize));
+#else /* LARGE_SMB_OFF_T */
+			DEBUGADD (5,( 
+				"qflags:%u curblocks:%lu softlimit:%lu hardlimit:%lu\n"
+				"curinodes:%lu isoftlimit:%lu ihardlimit:%lu bsize:%lu\n", 
+				dp->qflags,(long unsigned)dp->curblocks,
+				(long unsigned)dp->softlimit,(long unsigned)dp->hardlimit,
+				(long unsigned)dp->curinodes,
+				(long unsigned)dp->isoftlimit,(long unsigned)dp->ihardlimit,
+				(long unsigned)dp->bsize));
+#endif /* LARGE_SMB_OFF_T */
+			return 0;
+		}
+
+		DEBUG (0, ("get_quota_command failed!\n"));
+		return -1;
+	}
+
+	errno = ENOSYS;
+	return -1;
+	
+invalid_param:
+	DEBUG(0,("The output of get_quota_command is invalid!\n"));
+	return -1;
+}
+
+static int command_set_quota(const char *path, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dp)
+{
+	const char *set_quota_command;
+	
+	set_quota_command = lp_set_quota_command();
+	if (set_quota_command && *set_quota_command) {
+		char **lines;
+		pstring syscmd;
+		int _id = -1;
+
+		switch(qtype) {
+			case SMB_USER_QUOTA_TYPE:
+			case SMB_USER_FS_QUOTA_TYPE:
+				_id = id.uid;
+				break;
+			case SMB_GROUP_QUOTA_TYPE:
+			case SMB_GROUP_FS_QUOTA_TYPE:
+				_id = id.gid;
+				break;
+			default:
+				return -1;
+		}
+
+#ifdef LARGE_SMB_OFF_T
+		slprintf(syscmd, sizeof(syscmd)-1, 
+			"%s \"%s\" %d %d "
+			"%u %llu %llu "
+			"%llu %llu %llu ", 
+			set_quota_command, path, qtype, _id, dp->qflags,
+			(long long unsigned)dp->softlimit,(long long unsigned)dp->hardlimit,
+			(long long unsigned)dp->isoftlimit,(long long unsigned)dp->ihardlimit,
+			(long long unsigned)dp->bsize);
+#else /* LARGE_SMB_OFF_T */
+		slprintf(syscmd, sizeof(syscmd)-1, 
+			"%s \"%s\" %d %d "
+			"%u %lu %lu "
+			"%lu %lu %lu ", 
+			set_quota_command, path, qtype, _id, dp->qflags,
+			(long unsigned)dp->softlimit,(long unsigned)dp->hardlimit,
+			(long unsigned)dp->isoftlimit,(long unsigned)dp->ihardlimit,
+			(long unsigned)dp->bsize);
+#endif /* LARGE_SMB_OFF_T */
+
+
+
+		DEBUG (3, ("get_quota: Running command %s\n", syscmd));
+
+		lines = file_lines_pload(syscmd, NULL);
+		if (lines) {
+			char *line = lines[0];
+
+			DEBUG (3, ("Read output from set_quota, \"%s\"\n", line));
+
+			file_lines_free(lines);
+			
+			return 0;
+		}
+		DEBUG (0, ("set_quota_command failed!\n"));
+		return -1;
+	}
+
+	errno = ENOSYS;
+	return -1;
+}
+
+int sys_get_quota(const char *path, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dp)
+{
+	int ret = -1;
+	int i;
+	BOOL ready = False;
+	char *mntpath = NULL;
+	char *bdev = NULL;
+	char *fs = NULL;
+
+	if (!path||!dp)
+		smb_panic("sys_get_quota: called with NULL pointer");
+
+	if (command_get_quota(path, qtype, id, dp)==0) {	
+		return 0;
+	} else if (errno != ENOSYS) {
+		return -1;
+	}
+
+	if ((ret=sys_path_to_bdev(path,&mntpath,&bdev,&fs))!=0) {
+		DEBUG(0,("sys_path_to_bdev() failed for path [%s]!\n",path));
+		return ret;
+	}
+
+	errno = 0;
+	DEBUG(10,("sys_get_quota() uid(%u, %u)\n", (unsigned)getuid(), (unsigned)geteuid()));
+
+	for (i=0;(fs && sys_quota_backends[i].name && sys_quota_backends[i].get_quota);i++) {
+		if (strcmp(fs,sys_quota_backends[i].name)==0) {
+			ret = sys_quota_backends[i].get_quota(mntpath, bdev, qtype, id, dp);
+			if (ret!=0) {
+				DEBUG(3,("sys_get_%s_quota() failed for mntpath[%s] bdev[%s] qtype[%d] id[%d]: %s.\n",
+					fs,mntpath,bdev,qtype,(qtype==SMB_GROUP_QUOTA_TYPE?id.gid:id.uid),strerror(errno)));
+			} else {
+				DEBUG(10,("sys_get_%s_quota() called for mntpath[%s] bdev[%s] qtype[%d] id[%d].\n",
+					fs,mntpath,bdev,qtype,(qtype==SMB_GROUP_QUOTA_TYPE?id.gid:id.uid)));
+			}
+			ready = True;
+			break;	
+		}		
+	}
+
+	if (!ready) {
+		/* use the default vfs quota functions */
+		ret=sys_get_vfs_quota(mntpath, bdev, qtype, id, dp);
+		if (ret!=0) {
+			DEBUG(3,("sys_get_%s_quota() failed for mntpath[%s] bdev[%s] qtype[%d] id[%d]: %s\n",
+				"vfs",mntpath,bdev,qtype,(qtype==SMB_GROUP_QUOTA_TYPE?id.gid:id.uid),strerror(errno)));
+		} else {
+			DEBUG(10,("sys_get_%s_quota() called for mntpath[%s] bdev[%s] qtype[%d] id[%d].\n",
+				"vfs",mntpath,bdev,qtype,(qtype==SMB_GROUP_QUOTA_TYPE?id.gid:id.uid)));
+		}
+	}
+
+	SAFE_FREE(mntpath);
+	SAFE_FREE(bdev);
+	SAFE_FREE(fs);
+
+	if ((ret!=0)&& (errno == EDQUOT)) {
+		DEBUG(10,("sys_get_quota() warning over quota!\n"));
+		return 0;
+	}
+
+	return ret;
+}
+
+int sys_set_quota(const char *path, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dp)
+{
+	int ret = -1;
+	int i;
+	BOOL ready = False;
+	char *mntpath = NULL;
+	char *bdev = NULL;
+	char *fs = NULL;
+
+	/* find the block device file */
+
+	if (!path||!dp)
+		smb_panic("get_smb_quota: called with NULL pointer");
+
+	if (command_set_quota(path, qtype, id, dp)==0) {	
+		return 0;
+	} else if (errno != ENOSYS) {
+		return -1;
+	}
+
+	if ((ret=sys_path_to_bdev(path,&mntpath,&bdev,&fs))!=0) {
+		DEBUG(0,("sys_path_to_bdev() failed for path [%s]!\n",path));
+		return ret;
+	}
+
+	errno = 0;
+	DEBUG(10,("sys_set_quota() uid(%u, %u)\n", (unsigned)getuid(), (unsigned)geteuid())); 
+
+	for (i=0;(fs && sys_quota_backends[i].name && sys_quota_backends[i].set_quota);i++) {
+		if (strcmp(fs,sys_quota_backends[i].name)==0) {
+			ret = sys_quota_backends[i].set_quota(mntpath, bdev, qtype, id, dp);
+			if (ret!=0) {
+				DEBUG(3,("sys_set_%s_quota() failed for mntpath[%s] bdev[%s] qtype[%d] id[%d]: %s.\n",
+					fs,mntpath,bdev,qtype,(qtype==SMB_GROUP_QUOTA_TYPE?id.gid:id.uid),strerror(errno)));
+			} else {
+				DEBUG(10,("sys_set_%s_quota() called for mntpath[%s] bdev[%s] qtype[%d] id[%d].\n",
+					fs,mntpath,bdev,qtype,(qtype==SMB_GROUP_QUOTA_TYPE?id.gid:id.uid)));
+			}
+			ready = True;
+			break;
+		}		
+	}
+
+	if (!ready) {
+		/* use the default vfs quota functions */
+		ret=sys_set_vfs_quota(mntpath, bdev, qtype, id, dp);
+		if (ret!=0) {
+			DEBUG(3,("sys_set_%s_quota() failed for mntpath[%s] bdev[%s] qtype[%d] id[%d]: %s.\n",
+				"vfs",mntpath,bdev,qtype,(qtype==SMB_GROUP_QUOTA_TYPE?id.gid:id.uid),strerror(errno)));
+		} else {
+			DEBUG(10,("sys_set_%s_quota() called for mntpath[%s] bdev[%s] qtype[%d] id[%d].\n",
+				"vfs",mntpath,bdev,qtype,(qtype==SMB_GROUP_QUOTA_TYPE?id.gid:id.uid)));
+		}
+	}
+
+	SAFE_FREE(mntpath);
+	SAFE_FREE(bdev);
+	SAFE_FREE(fs);
+
+	if ((ret!=0)&& (errno == EDQUOT)) {
+		DEBUG(10,("sys_set_quota() warning over quota!\n"));
+		return 0;
+	}
+
+	return ret;		
+}
+
+#else /* HAVE_SYS_QUOTAS */
+ void dummy_sysquotas_c(void);
+
+ void dummy_sysquotas_c(void)
+{
+	return;
+}
+#endif /* HAVE_SYS_QUOTAS */
+