svn commit: samba r20153 - in branches/SAMBA_3_0_24/source: . utils
herb at samba.org
herb at samba.org
Wed Dec 13 21:00:47 GMT 2006
Author: herb
Date: 2006-12-13 21:00:45 +0000 (Wed, 13 Dec 2006)
New Revision: 20153
WebSVN: http://websvn.samba.org/cgi-bin/viewcvs.cgi?view=rev&root=samba&rev=20153
Log:
allow bin/sharesec to be built (not by default)
Added:
branches/SAMBA_3_0_24/source/utils/sharesec.c
Modified:
branches/SAMBA_3_0_24/source/Makefile.in
Changeset:
Modified: branches/SAMBA_3_0_24/source/Makefile.in
===================================================================
--- branches/SAMBA_3_0_24/source/Makefile.in 2006-12-13 20:47:24 UTC (rev 20152)
+++ branches/SAMBA_3_0_24/source/Makefile.in 2006-12-13 21:00:45 UTC (rev 20153)
@@ -685,6 +685,11 @@
registry/reg_eventlog.o rpc_server/srv_eventlog_lib.o registry/reg_util.o \
registry/reg_db.o
+SHARESEC_OBJ0 = utils/sharesec.o
+SHARESEC_OBJ = $(SHARESEC_OBJ0) $(PARAM_OBJ) $(LIB_NONSMBD_OBJ) $(REGOBJS_OBJ) \
+ $(ERRORMAP_OBJ) $(RPC_PARSE_OBJ1) $(LIBSAMBA_OBJ) $(DOSERR_OBJ) \
+ $(POPT_LIB_OBJ) $(SECRETS_OBJ)
+
TALLOCTORT_OBJ = lib/talloc/testsuite.o $(PARAM_OBJ) $(LIB_NONSMBD_OBJ) \
$(RPC_PARSE_OBJ1) $(DOSERR_OBJ) $(LIBSAMBA_OBJ) $(SECRETS_OBJ)
@@ -865,6 +870,8 @@
eventlogadm: SHOWFLAGS bin/eventlogadm at EXEEXT@
+sharesec: SHOWFLAGS bin/sharesec at EXEEXT@
+
talloctort : SHOWFLAGS bin/talloctort at EXEEXT@
replacetort : SHOWFLAGS bin/replacetort at EXEEXT@
@@ -1096,6 +1103,10 @@
@echo Linking $@
@$(CC) $(FLAGS) -o $@ $(EVTLOGADM_OBJ) $(DYNEXP) $(LDFLAGS) $(LIBS) $(LDAP_LIBS) @POPTLIBS@
+bin/sharesec at EXEEXT@: $(SHARESEC_OBJ) @BUILD_POPT@ bin/.dummy
+ @echo Linking $@
+ @$(CC) $(FLAGS) -o $@ $(SHARESEC_OBJ) $(DYNEXP) $(LDFLAGS) $(LIBS) $(LDAP_LIBS) @POPTLIBS@
+
bin/locktest at EXEEXT@: $(LOCKTEST_OBJ) bin/.dummy
@echo Linking $@
@$(CC) $(FLAGS) -o $@ $(LOCKTEST_OBJ) $(LDFLAGS) $(DYNEXP) $(LIBS) $(KRB5LIBS) $(LDAP_LIBS)
Added: branches/SAMBA_3_0_24/source/utils/sharesec.c
===================================================================
--- branches/SAMBA_3_0_24/source/utils/sharesec.c 2006-12-13 20:47:24 UTC (rev 20152)
+++ branches/SAMBA_3_0_24/source/utils/sharesec.c 2006-12-13 21:00:45 UTC (rev 20153)
@@ -0,0 +1,415 @@
+/*
+ * Unix SMB/Netbios implementation.
+ * Utility for managing share permissions
+ *
+ * Copyright (C) Tim Potter 2000
+ * Copyright (C) Jeremy Allison 2000
+ * Copyright (C) Jelmer Vernooij 2003
+ * Copyright (C) Gerald (Jerry) Carter 2005.
+ *
+ * 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"
+
+#define CREATE_ACCESS_READ READ_CONTROL_ACCESS
+
+/* numeric is set when the user wants numeric SIDs and ACEs rather
+ than going via LSA calls to resolve them */
+static BOOL numeric = False;
+
+enum acl_mode {SMB_ACL_REMOVE, SMB_ACL_MODIFY, SMB_ACL_ADD, SMB_ACL_REPLACE, SMB_ACL_VIEW };
+enum exit_values {EXIT_OK, EXIT_FAILED, EXIT_PARSE_ERROR};
+
+struct perm_value {
+ const char *perm;
+ uint32 mask;
+};
+
+/* These values discovered by inspection */
+
+static const struct perm_value special_values[] = {
+ { "R", 0x00120089 },
+ { "W", 0x00120116 },
+ { "X", 0x001200a0 },
+ { "D", 0x00010000 },
+ { "P", 0x00040000 },
+ { "O", 0x00080000 },
+ { NULL, 0 },
+};
+
+static const struct perm_value standard_values[] = {
+ { "READ", 0x001200a9 },
+ { "CHANGE", 0x001301bf },
+ { "FULL", 0x001f01ff },
+ { NULL, 0 },
+};
+
+/********************************************************************
+ print an ACE on a FILE, using either numeric or ascii representation
+********************************************************************/
+
+static void print_ace(FILE *f, SEC_ACE *ace)
+{
+ const struct perm_value *v;
+ fstring sidstr;
+ int do_print = 0;
+ uint32 got_mask;
+
+ sid_to_string(sidstr, &ace->trustee);
+
+ fprintf(f, "%s:", sidstr);
+
+ if (numeric) {
+ fprintf(f, "%d/%d/0x%08x",
+ ace->type, ace->flags, ace->info.mask);
+ return;
+ }
+
+ /* Ace type */
+
+ if (ace->type == SEC_ACE_TYPE_ACCESS_ALLOWED) {
+ fprintf(f, "ALLOWED");
+ } else if (ace->type == SEC_ACE_TYPE_ACCESS_DENIED) {
+ fprintf(f, "DENIED");
+ } else {
+ fprintf(f, "%d", ace->type);
+ }
+
+ /* Not sure what flags can be set in a file ACL */
+
+ fprintf(f, "/%d/", ace->flags);
+
+ /* Standard permissions */
+
+ for (v = standard_values; v->perm; v++) {
+ if (ace->info.mask == v->mask) {
+ fprintf(f, "%s", v->perm);
+ return;
+ }
+ }
+
+ /* Special permissions. Print out a hex value if we have
+ leftover bits in the mask. */
+
+ got_mask = ace->info.mask;
+
+ again:
+ for (v = special_values; v->perm; v++) {
+ if ((ace->info.mask & v->mask) == v->mask) {
+ if (do_print) {
+ fprintf(f, "%s", v->perm);
+ }
+ got_mask &= ~v->mask;
+ }
+ }
+
+ if (!do_print) {
+ if (got_mask != 0) {
+ fprintf(f, "0x%08x", ace->info.mask);
+ } else {
+ do_print = 1;
+ goto again;
+ }
+ }
+}
+
+/********************************************************************
+ print a ascii version of a security descriptor on a FILE handle
+********************************************************************/
+
+static void sec_desc_print(FILE *f, SEC_DESC *sd)
+{
+ fstring sidstr;
+ uint32 i;
+
+ fprintf(f, "REVISION:%d\n", sd->revision);
+
+ /* Print owner and group sid */
+
+ if (sd->owner_sid) {
+ sid_to_string(sidstr, sd->owner_sid);
+ } else {
+ fstrcpy(sidstr, "");
+ }
+
+ fprintf(f, "OWNER:%s\n", sidstr);
+
+ if (sd->grp_sid) {
+ sid_to_string(sidstr, sd->grp_sid);
+ } else {
+ fstrcpy(sidstr, "");
+ }
+
+ fprintf(f, "GROUP:%s\n", sidstr);
+
+ /* Print aces */
+ for (i = 0; sd->dacl && i < sd->dacl->num_aces; i++) {
+ SEC_ACE *ace = &sd->dacl->ace[i];
+ fprintf(f, "ACL:");
+ print_ace(f, ace);
+ fprintf(f, "\n");
+ }
+
+}
+
+/********************************************************************
+********************************************************************/
+
+static BOOL parse_ace( TALLOC_CTX *ctx, SEC_ACE *ace, char *entry )
+{
+ SEC_ACCESS sa;
+ char *p = strchr_m( entry, ':' );
+ DOM_SID sid;
+ uint32 mask;
+
+ if ( !p )
+ return False;
+
+ *p = '\0';
+ p++;
+
+ string_to_sid( &sid, entry );
+
+ switch ( *p ) {
+ case 'F':
+ case 'f':
+ mask = GENERIC_RIGHTS_FILE_ALL_ACCESS|STD_RIGHT_ALL_ACCESS;
+ break;
+
+ case 'R':
+ case 'r':
+ mask = GENERIC_RIGHTS_FILE_READ|GENERIC_RIGHTS_FILE_EXECUTE|\
+ STANDARD_RIGHTS_READ_ACCESS|STANDARD_RIGHTS_EXECUTE_ACCESS;
+ break;
+
+ default:
+ return False;
+ }
+
+ init_sec_access( &sa, mask );
+
+ /* no flags on share permissions */
+ init_sec_ace( ace, &sid, SEC_ACE_TYPE_ACCESS_ALLOWED, sa, 0 );
+
+ return True;
+}
+
+
+/********************************************************************
+********************************************************************/
+
+static SEC_DESC* parse_acl_string( TALLOC_CTX *ctx, const char *szACL, size_t *sd_size )
+{
+ SEC_DESC *sd = NULL;
+ SEC_ACE *ace;
+ SEC_ACL *acl;
+ int num_ace;
+ const char *pacl;
+ int i;
+
+ if ( !szACL )
+ return NULL;
+
+ pacl = szACL;
+ num_ace = count_chars( pacl, ',' ) + 1;
+
+ if ( !(ace = TALLOC_ZERO_ARRAY( ctx, SEC_ACE, num_ace )) )
+ return NULL;
+
+ for ( i=0; i<num_ace; i++ ) {
+ char *end_acl = strchr_m( pacl, ',' );
+ fstring acl_string;
+
+ strncpy( acl_string, pacl, MIN( PTR_DIFF( end_acl, pacl ), sizeof(fstring)-1) );
+ acl_string[MIN( PTR_DIFF( end_acl, pacl ), sizeof(fstring)-1)] = '\0';
+
+ if ( !parse_ace( ctx, &ace[i], acl_string ) )
+ return NULL;
+
+ pacl = end_acl;
+ pacl++;
+ }
+
+ if ( !(acl = make_sec_acl( ctx, NT4_ACL_REVISION, num_ace, ace )) )
+ return NULL;
+
+ sd = make_sec_desc( ctx, SEC_DESC_REVISION, SEC_DESC_SELF_RELATIVE,
+ &global_sid_Builtin_Administrators,
+ &global_sid_Builtin_Administrators,
+ NULL, acl, sd_size);
+
+ return sd;
+}
+
+/********************************************************************
+ main program
+********************************************************************/
+
+int main(int argc, const char *argv[])
+{
+ int opt;
+ enum acl_mode mode = SMB_ACL_REPLACE;
+ static char *the_acl = NULL;
+ fstring sharename;
+ BOOL force_acl = False;
+ size_t sd_size = 0;
+ SEC_DESC *secdesc;
+ int snum;
+ poptContext pc;
+ TALLOC_CTX *ctx;
+ BOOL initialize_sid = False;
+ struct poptOption long_options[] = {
+ POPT_AUTOHELP
+#if 0
+ { "remove", 'r', POPT_ARG_STRING, NULL, 'r', "Delete an ACE", "ACL" },
+ { "modify", 'm', POPT_ARG_STRING, NULL, 'm', "Modify an acl", "ACL" },
+ { "add", 'a', POPT_ARG_STRING, NULL, 'a', "Add an ACE", "ACL" },
+#endif
+ { "replace", 'R', POPT_ARG_STRING, NULL, 'R', "Set share mission ACL", "ACLS" },
+ { "view", 'v', POPT_ARG_NONE, NULL, 'v', "View current share permissions" },
+ { "machine-sid", 'M', POPT_ARG_NONE, NULL, 'M', "Initialize the machine SID" },
+ { "force", 'F', POPT_ARG_NONE, NULL, 'F', "Force storing the ACL", "ACLS" },
+ POPT_COMMON_SAMBA
+ { NULL }
+ };
+
+ if ( !(ctx = talloc_init("main")) ) {
+ fprintf( stderr, "Failed to initialize talloc context!\n");
+ return -1;
+ }
+
+ /* set default debug level to 1 regardless of what smb.conf sets */
+ setup_logging( "sharesec", True );
+ DEBUGLEVEL_CLASS[DBGC_ALL] = 1;
+ dbf = x_stderr;
+ x_setbuf( x_stderr, NULL );
+
+ setlinebuf(stdout);
+
+ load_case_tables();
+
+ lp_load( dyn_CONFIGFILE, False, False, False, True );
+
+ pc = poptGetContext("smbcacls", argc, argv, long_options, 0);
+
+ poptSetOtherOptionHelp(pc, "sharename\n");
+
+ while ((opt = poptGetNextOpt(pc)) != -1) {
+ switch (opt) {
+#if 0
+ case 'r':
+ the_acl = smb_xstrdup(poptGetOptArg(pc));
+ mode = SMB_ACL_REMOVE;
+ break;
+
+ case 'm':
+ the_acl = smb_xstrdup(poptGetOptArg(pc));
+ mode = SMB_ACL_MODIFY;
+ break;
+
+ case 'a':
+ the_acl = smb_xstrdup(poptGetOptArg(pc));
+ mode = SMB_ACL_ADD;
+ break;
+#endif
+ case 'R':
+ the_acl = smb_xstrdup(poptGetOptArg(pc));
+ mode = SMB_ACL_REPLACE;
+ break;
+
+ case 'v':
+ mode = SMB_ACL_VIEW;
+ break;
+
+ case 'F':
+ force_acl = True;
+ break;
+
+ case 'M':
+ initialize_sid = True;
+ break;
+ }
+ }
+
+ /* check for initializing secrets.tdb first */
+
+ if ( initialize_sid ) {
+ DOM_SID *sid = get_global_sam_sid();
+
+ if ( !sid ) {
+ fprintf( stderr, "Failed to retrieve Machine SID!\n");
+ return 3;
+ }
+
+ printf ("%s\n", sid_string_static( sid ) );
+ return 0;
+ }
+
+ if ( mode == SMB_ACL_VIEW && force_acl ) {
+ fprintf( stderr, "Invalid combination of -F and -v\n");
+ return -1;
+ }
+
+ /* get the sharename */
+
+ if(!poptPeekArg(pc)) {
+ poptPrintUsage(pc, stderr, 0);
+ return -1;
+ }
+
+ fstrcpy(sharename, poptGetArg(pc));
+
+ snum = lp_servicenumber( sharename );
+
+ if ( snum == -1 && !force_acl ) {
+ fprintf( stderr, "Invalid sharename: %s\n", sharename);
+ return -1;
+ }
+
+ switch ( mode ) {
+ case SMB_ACL_VIEW:
+ if (!(secdesc = get_share_security( ctx, sharename,
+ &sd_size )) ) {
+ fprintf(stderr, "Unable to retrieve permissions for share [%s]\n", sharename);
+ return -1;
+ }
+ sec_desc_print( stdout, secdesc );
+ break;
+
+ case SMB_ACL_REMOVE:
+ case SMB_ACL_ADD:
+ case SMB_ACL_MODIFY:
+ printf( "Not implemented\n");
+ break;
+
+ case SMB_ACL_REPLACE:
+ if ( !(secdesc = parse_acl_string( ctx, the_acl, &sd_size )) ) {
+ fprintf( stderr, "Failed to parse acl\n");
+ return -1;
+ }
+
+ if ( !set_share_security( lp_servicename(snum), secdesc ) ) {
+ fprintf( stderr, "Failed to store acl for share [%s]\n", sharename );
+ return 2;
+ }
+ break;
+ }
+
+ talloc_destroy(ctx);
+
+ return 0;
+}
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