ntfs/libntfs/security.c

1127  *		Optional simplified checking of group membership
1130  *	/etc/group at initialization time.
1132  *	setgroups() nor the changes in /etc/group since initialization
1137  *	Should not be called for user root, however the group may be root
1166  *		Check whether current thread owner is member of file group
1168  *	Should not be called for user root, however the group may be root
1170  * The group list is available in "/proc/$PID/cred"
1180 		gid_t pr_egid;	    /* effective group id */
1181 		gid_t pr_rgid;	    /* real group id */
1182 		gid_t pr_sgid;	    /* saved group id (from exec) */
1248  *		Check whether current thread owner is member of file group
1250  *	Should not be called for user root, however the group may be root
1254  * The group list is available in
1263  * The following implementation gets the group list from
1345 			ntfs_log_error("No group record found in %s\n",filename);
1362  *	it replaces the permission mask by the group permissions.
1372 	const struct MAPPING* group;
1383 				group = scx->mapping[MAPGROUPS];
1384 				while (group && (group->xid != pace->id))
1385 					group = group->next;
1386 				if (group && group->grcnt
1387 				    && (*(group->groups) == (gid_t)pace->id))
1741  *	Fetch owner, group and permission of a file, if cached
1968 					/* root access if some group execution */
1999 				 * the group memberships. The groups are
2041 					/* owning group */
2075  *	Takes into account the relation of user to file (owner, group, ...)
2089 	const SID *gsid;	/* group of file/directory */
2114 					   securattr[le32_to_cpu(phead->group)];
2152 					 * fetch owner and group for cacheing
2191 	const SID *gsid;	/* group of file/directory */
2214 					  securattr[le32_to_cpu(phead->group)];
2225 					 * fetch owner and group for cacheing
2309  *	Takes into account the relation of user to file (owner, group, ...)
2322 	const SID *gsid;	/* group of file/directory */
2346 					   securattr[le32_to_cpu(phead->group)];
2376 					 * fetch owner and group for cacheing
2403 				 * avoid checking group membership
2404 				 * when the requested perms for group
2448  *		Get owner, group and permissions in an stat structure
2458 	const SID *gsid;	/* group of file/directory */
2492 					  securattr[le32_to_cpu(phead->group)];
2517 					 * fetch owner and group for cacheing
2602 				   securattr[le32_to_cpu(phead->group)];
2630 					 * fetch owner and group for cacheing
2706 				ntfs_log_error("File created by an unmapped user/group %d/%d\n",
2763 			ntfs_log_error("File created by an unmapped user/group %d/%d\n",
2845 			ntfs_log_error("File created by an unmapped user/group %d/%d\n",
2950 			ntfs_log_error("File made owned by an unmapped user/group %d/%d\n",
3138 				gsid = (const SID*)&oldattr[le32_to_cpu(phead->group)];
3168 				 * clear setgid if file group does
3169 				 * not match process group
3315 			gsid = (const SID*)&oldattr[le32_to_cpu(phead->group)];
3335 				 * clear setgid if file group does
3336 				 * not match process group
3388 	 * owner and group SIDs, but structure SID contain only one, so add
3414 	sd->group = cpu_to_le32((u8*)sid - (u8*)sd);
3566 		/* return directory group if S_ISGID is set */
3637  *		Define a new owner/group to a file
3685 				&oldattr[le32_to_cpu(phead->group)];
3717 		/* or chgrp requested by owner to an owned group */
3761  *		Define new owner/group and mode to a file
3817 				&oldattr[le32_to_cpu(phead->group)];
3839 		/* or chgrp requested by owner to an owned group */
3926 		 * user, we have to get owner and group from somewhere,
3946 			offgroup = le32_to_cpu(pphead->group);
3953 		 * owner, group and possible grants and denials in
3954 		 * generic creator-owner and creator-group ACEs.
4014 			 * inherit or redefine group
4017 		pnhead->group = cpu_to_le32(pos);
4036  *	Note : the owner and group of parent directory are also
4095  *		Link a group to a member of group
4103 	struct group *group;
4110 	group = getgrgid(gid);
4111 	if (group && group->gr_mem) {
4114 		grmem = group->gr_mem;
4138  *		Statically link group to users
4139  *	This is based on groups defined in /etc/group and does not take
4141  *	/etc/group into account
4143  *	Only mapped groups and root group are linked to mapped users
4376 			ntfs_log_error("There were no valid user or no valid group\n");
4622 		/* locate group if requested and available */
4623 	offgroup = le32_to_cpu(phead->group);
4702 		/* copy group if requested and available */
4704 			pnhead->group = cpu_to_le32(pos);
4708 			pnhead->group = const_cpu_to_le32(0);
4849 				newhead->group : oldhead->group) {
4851 				offgroup = le32_to_cpu(newhead->group);
4856 				offgroup = le32_to_cpu(oldhead->group);
4863 			targhead->group = cpu_to_le32(pos);
4866 			targhead->group = const_cpu_to_le32(0);
4968 		/* if selected, owner and group must be present or defaulted */
4973 				&& !phead->group
5260  *		Get the mapped group SID
5312  *		Get the group mapped to a SID