/*
Unix SMB/CIFS implementation.
ACL get/set utility
Copyright (C) Andrew Tridgell 2000
Copyright (C) Tim Potter 2000
Copyright (C) Jeremy Allison 2000
Copyright (C) Jelmer Vernooij 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 3 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, see .
*/
#include "includes.h"
#include "popt_common.h"
#include "../librpc/gen_ndr/ndr_lsa.h"
#include "rpc_client/cli_lsarpc.h"
#include "../libcli/security/security.h"
static int test_args;
#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 int numeric;
static int sddl;
enum acl_mode {SMB_ACL_SET, SMB_ACL_DELETE, SMB_ACL_MODIFY, SMB_ACL_ADD };
enum chown_mode {REQUEST_NONE, REQUEST_CHOWN, REQUEST_CHGRP, REQUEST_INHERIT};
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 },
};
/* Open cli connection and policy handle */
static NTSTATUS cli_lsa_lookup_sid(struct cli_state *cli,
const struct dom_sid *sid,
TALLOC_CTX *mem_ctx,
enum lsa_SidType *type,
char **domain, char **name)
{
uint16 orig_cnum = cli->cnum;
struct rpc_pipe_client *p = NULL;
struct policy_handle handle;
NTSTATUS status;
TALLOC_CTX *frame = talloc_stackframe();
enum lsa_SidType *types;
char **domains;
char **names;
status = cli_tcon_andx(cli, "IPC$", "?????", "", 0);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
status = cli_rpc_pipe_open_noauth(cli, &ndr_table_lsarpc.syntax_id,
&p);
if (!NT_STATUS_IS_OK(status)) {
goto fail;
}
status = rpccli_lsa_open_policy(p, talloc_tos(), True,
GENERIC_EXECUTE_ACCESS, &handle);
if (!NT_STATUS_IS_OK(status)) {
goto fail;
}
status = rpccli_lsa_lookup_sids(p, talloc_tos(), &handle, 1, sid,
&domains, &names, &types);
if (!NT_STATUS_IS_OK(status)) {
goto fail;
}
*type = types[0];
*domain = talloc_move(mem_ctx, &domains[0]);
*name = talloc_move(mem_ctx, &names[0]);
status = NT_STATUS_OK;
fail:
TALLOC_FREE(p);
cli_tdis(cli);
cli->cnum = orig_cnum;
TALLOC_FREE(frame);
return status;
}
static NTSTATUS cli_lsa_lookup_name(struct cli_state *cli,
const char *name,
enum lsa_SidType *type,
struct dom_sid *sid)
{
uint16 orig_cnum = cli->cnum;
struct rpc_pipe_client *p;
struct policy_handle handle;
NTSTATUS status;
TALLOC_CTX *frame = talloc_stackframe();
struct dom_sid *sids;
enum lsa_SidType *types;
status = cli_tcon_andx(cli, "IPC$", "?????", "", 0);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
status = cli_rpc_pipe_open_noauth(cli, &ndr_table_lsarpc.syntax_id,
&p);
if (!NT_STATUS_IS_OK(status)) {
goto fail;
}
status = rpccli_lsa_open_policy(p, talloc_tos(), True,
GENERIC_EXECUTE_ACCESS, &handle);
if (!NT_STATUS_IS_OK(status)) {
goto fail;
}
status = rpccli_lsa_lookup_names(p, talloc_tos(), &handle, 1, &name,
NULL, 1, &sids, &types);
if (!NT_STATUS_IS_OK(status)) {
goto fail;
}
*type = types[0];
*sid = sids[0];
status = NT_STATUS_OK;
fail:
TALLOC_FREE(p);
cli_tdis(cli);
cli->cnum = orig_cnum;
TALLOC_FREE(frame);
return status;
}
/* convert a SID to a string, either numeric or username/group */
static void SidToString(struct cli_state *cli, fstring str, const struct dom_sid *sid)
{
char *domain = NULL;
char *name = NULL;
enum lsa_SidType type;
NTSTATUS status;
sid_to_fstring(str, sid);
if (numeric) {
return;
}
status = cli_lsa_lookup_sid(cli, sid, talloc_tos(), &type,
&domain, &name);
if (!NT_STATUS_IS_OK(status)) {
return;
}
if (*domain) {
slprintf(str, sizeof(fstring) - 1, "%s%s%s",
domain, lp_winbind_separator(), name);
} else {
fstrcpy(str, name);
}
}
/* convert a string to a SID, either numeric or username/group */
static bool StringToSid(struct cli_state *cli, struct dom_sid *sid, const char *str)
{
enum lsa_SidType type;
if (string_to_sid(sid, str)) {
return true;
}
return NT_STATUS_IS_OK(cli_lsa_lookup_name(cli, str, &type, sid));
}
static void print_ace_flags(FILE *f, uint8_t flags)
{
char *str = talloc_strdup(NULL, "");
if (!str) {
goto out;
}
if (flags & SEC_ACE_FLAG_OBJECT_INHERIT) {
str = talloc_asprintf(str, "%s%s",
str, "OI|");
if (!str) {
goto out;
}
}
if (flags & SEC_ACE_FLAG_CONTAINER_INHERIT) {
str = talloc_asprintf(str, "%s%s",
str, "CI|");
if (!str) {
goto out;
}
}
if (flags & SEC_ACE_FLAG_NO_PROPAGATE_INHERIT) {
str = talloc_asprintf(str, "%s%s",
str, "NP|");
if (!str) {
goto out;
}
}
if (flags & SEC_ACE_FLAG_INHERIT_ONLY) {
str = talloc_asprintf(str, "%s%s",
str, "IO|");
if (!str) {
goto out;
}
}
if (flags & SEC_ACE_FLAG_INHERITED_ACE) {
str = talloc_asprintf(str, "%s%s",
str, "I|");
if (!str) {
goto out;
}
}
/* Ignore define SEC_ACE_FLAG_SUCCESSFUL_ACCESS ( 0x40 )
and SEC_ACE_FLAG_FAILED_ACCESS ( 0x80 ) as they're
audit ace flags. */
if (str[strlen(str)-1] == '|') {
str[strlen(str)-1] = '\0';
fprintf(f, "/%s/", str);
} else {
fprintf(f, "/0x%x/", flags);
}
TALLOC_FREE(str);
return;
out:
fprintf(f, "/0x%x/", flags);
}
/* print an ACE on a FILE, using either numeric or ascii representation */
static void print_ace(struct cli_state *cli, FILE *f, struct security_ace *ace)
{
const struct perm_value *v;
fstring sidstr;
int do_print = 0;
uint32 got_mask;
SidToString(cli, sidstr, &ace->trustee);
fprintf(f, "%s:", sidstr);
if (numeric) {
fprintf(f, "%d/0x%x/0x%08x",
ace->type, ace->flags, ace->access_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);
}
print_ace_flags(f, ace->flags);
/* Standard permissions */
for (v = standard_values; v->perm; v++) {
if (ace->access_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->access_mask;
again:
for (v = special_values; v->perm; v++) {
if ((ace->access_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->access_mask);
} else {
do_print = 1;
goto again;
}
}
}
static bool parse_ace_flags(const char *str, unsigned int *pflags)
{
const char *p = str;
*pflags = 0;
while (*p) {
if (strnequal(p, "OI", 2)) {
*pflags |= SEC_ACE_FLAG_OBJECT_INHERIT;
p += 2;
} else if (strnequal(p, "CI", 2)) {
*pflags |= SEC_ACE_FLAG_CONTAINER_INHERIT;
p += 2;
} else if (strnequal(p, "NP", 2)) {
*pflags |= SEC_ACE_FLAG_NO_PROPAGATE_INHERIT;
p += 2;
} else if (strnequal(p, "IO", 2)) {
*pflags |= SEC_ACE_FLAG_INHERIT_ONLY;
p += 2;
} else if (*p == 'I') {
*pflags |= SEC_ACE_FLAG_INHERITED_ACE;
p += 1;
} else if (*p) {
return false;
}
if (*p != '|' && *p != '\0') {
return false;
}
}
return true;
}
/* parse an ACE in the same format as print_ace() */
static bool parse_ace(struct cli_state *cli, struct security_ace *ace,
const char *orig_str)
{
char *p;
const char *cp;
char *tok;
unsigned int atype = 0;
unsigned int aflags = 0;
unsigned int amask = 0;
struct dom_sid sid;
uint32_t mask;
const struct perm_value *v;
char *str = SMB_STRDUP(orig_str);
TALLOC_CTX *frame = talloc_stackframe();
if (!str) {
TALLOC_FREE(frame);
return False;
}
ZERO_STRUCTP(ace);
p = strchr_m(str,':');
if (!p) {
printf("ACE '%s': missing ':'.\n", orig_str);
SAFE_FREE(str);
TALLOC_FREE(frame);
return False;
}
*p = '\0';
p++;
/* Try to parse numeric form */
if (sscanf(p, "%i/%i/%i", &atype, &aflags, &amask) == 3 &&
StringToSid(cli, &sid, str)) {
goto done;
}
/* Try to parse text form */
if (!StringToSid(cli, &sid, str)) {
printf("ACE '%s': failed to convert '%s' to SID\n",
orig_str, str);
SAFE_FREE(str);
TALLOC_FREE(frame);
return False;
}
cp = p;
if (!next_token_talloc(frame, &cp, &tok, "/")) {
printf("ACE '%s': failed to find '/' character.\n",
orig_str);
SAFE_FREE(str);
TALLOC_FREE(frame);
return False;
}
if (strncmp(tok, "ALLOWED", strlen("ALLOWED")) == 0) {
atype = SEC_ACE_TYPE_ACCESS_ALLOWED;
} else if (strncmp(tok, "DENIED", strlen("DENIED")) == 0) {
atype = SEC_ACE_TYPE_ACCESS_DENIED;
} else {
printf("ACE '%s': missing 'ALLOWED' or 'DENIED' entry at '%s'\n",
orig_str, tok);
SAFE_FREE(str);
TALLOC_FREE(frame);
return False;
}
/* Only numeric form accepted for flags at present */
if (!next_token_talloc(frame, &cp, &tok, "/")) {
printf("ACE '%s': bad flags entry at '%s'\n",
orig_str, tok);
SAFE_FREE(str);
TALLOC_FREE(frame);
return False;
}
if (tok[0] < '0' || tok[0] > '9') {
if (!parse_ace_flags(tok, &aflags)) {
printf("ACE '%s': bad named flags entry at '%s'\n",
orig_str, tok);
SAFE_FREE(str);
TALLOC_FREE(frame);
return False;
}
} else if (strnequal(tok, "0x", 2)) {
if (!sscanf(tok, "%x", &aflags)) {
printf("ACE '%s': bad hex flags entry at '%s'\n",
orig_str, tok);
SAFE_FREE(str);
TALLOC_FREE(frame);
return False;
}
} else {
if (!sscanf(tok, "%i", &aflags)) {
printf("ACE '%s': bad integer flags entry at '%s'\n",
orig_str, tok);
SAFE_FREE(str);
TALLOC_FREE(frame);
return False;
}
}
if (!next_token_talloc(frame, &cp, &tok, "/")) {
printf("ACE '%s': missing / at '%s'\n",
orig_str, tok);
SAFE_FREE(str);
TALLOC_FREE(frame);
return False;
}
if (strncmp(tok, "0x", 2) == 0) {
if (sscanf(tok, "%i", &amask) != 1) {
printf("ACE '%s': bad hex number at '%s'\n",
orig_str, tok);
SAFE_FREE(str);
TALLOC_FREE(frame);
return False;
}
goto done;
}
for (v = standard_values; v->perm; v++) {
if (strcmp(tok, v->perm) == 0) {
amask = v->mask;
goto done;
}
}
p = tok;
while(*p) {
bool found = False;
for (v = special_values; v->perm; v++) {
if (v->perm[0] == *p) {
amask |= v->mask;
found = True;
}
}
if (!found) {
printf("ACE '%s': bad permission value at '%s'\n",
orig_str, p);
SAFE_FREE(str);
TALLOC_FREE(frame);
return False;
}
p++;
}
if (*p) {
TALLOC_FREE(frame);
SAFE_FREE(str);
return False;
}
done:
mask = amask;
init_sec_ace(ace, &sid, atype, mask, aflags);
TALLOC_FREE(frame);
SAFE_FREE(str);
return True;
}
/* add an ACE to a list of ACEs in a struct security_acl */
static bool add_ace(struct security_acl **the_acl, struct security_ace *ace)
{
struct security_acl *new_ace;
struct security_ace *aces;
if (! *the_acl) {
return (((*the_acl) = make_sec_acl(talloc_tos(), 3, 1, ace))
!= NULL);
}
if (!(aces = SMB_CALLOC_ARRAY(struct security_ace, 1+(*the_acl)->num_aces))) {
return False;
}
memcpy(aces, (*the_acl)->aces, (*the_acl)->num_aces * sizeof(struct
security_ace));
memcpy(aces+(*the_acl)->num_aces, ace, sizeof(struct security_ace));
new_ace = make_sec_acl(talloc_tos(),(*the_acl)->revision,1+(*the_acl)->num_aces, aces);
SAFE_FREE(aces);
(*the_acl) = new_ace;
return True;
}
/* parse a ascii version of a security descriptor */
static struct security_descriptor *sec_desc_parse(TALLOC_CTX *ctx, struct cli_state *cli, char *str)
{
const char *p = str;
char *tok;
struct security_descriptor *ret = NULL;
size_t sd_size;
struct dom_sid *grp_sid=NULL, *owner_sid=NULL;
struct security_acl *dacl=NULL;
int revision=1;
while (next_token_talloc(ctx, &p, &tok, "\t,\r\n")) {
if (strncmp(tok,"REVISION:", 9) == 0) {
revision = strtol(tok+9, NULL, 16);
continue;
}
if (strncmp(tok,"OWNER:", 6) == 0) {
if (owner_sid) {
printf("Only specify owner once\n");
goto done;
}
owner_sid = SMB_CALLOC_ARRAY(struct dom_sid, 1);
if (!owner_sid ||
!StringToSid(cli, owner_sid, tok+6)) {
printf("Failed to parse owner sid\n");
goto done;
}
continue;
}
if (strncmp(tok,"GROUP:", 6) == 0) {
if (grp_sid) {
printf("Only specify group once\n");
goto done;
}
grp_sid = SMB_CALLOC_ARRAY(struct dom_sid, 1);
if (!grp_sid ||
!StringToSid(cli, grp_sid, tok+6)) {
printf("Failed to parse group sid\n");
goto done;
}
continue;
}
if (strncmp(tok,"ACL:", 4) == 0) {
struct security_ace ace;
if (!parse_ace(cli, &ace, tok+4)) {
goto done;
}
if(!add_ace(&dacl, &ace)) {
printf("Failed to add ACL %s\n", tok);
goto done;
}
continue;
}
printf("Failed to parse token '%s' in security descriptor,\n", tok);
goto done;
}
ret = make_sec_desc(ctx,revision, SEC_DESC_SELF_RELATIVE, owner_sid, grp_sid,
NULL, dacl, &sd_size);
done:
SAFE_FREE(grp_sid);
SAFE_FREE(owner_sid);
return ret;
}
/* print a ascii version of a security descriptor on a FILE handle */
static void sec_desc_print(struct cli_state *cli, FILE *f, struct security_descriptor *sd)
{
fstring sidstr;
uint32 i;
fprintf(f, "REVISION:%d\n", sd->revision);
fprintf(f, "CONTROL:0x%x\n", sd->type);
/* Print owner and group sid */
if (sd->owner_sid) {
SidToString(cli, sidstr, sd->owner_sid);
} else {
fstrcpy(sidstr, "");
}
fprintf(f, "OWNER:%s\n", sidstr);
if (sd->group_sid) {
SidToString(cli, sidstr, sd->group_sid);
} else {
fstrcpy(sidstr, "");
}
fprintf(f, "GROUP:%s\n", sidstr);
/* Print aces */
for (i = 0; sd->dacl && i < sd->dacl->num_aces; i++) {
struct security_ace *ace = &sd->dacl->aces[i];
fprintf(f, "ACL:");
print_ace(cli, f, ace);
fprintf(f, "\n");
}
}
/*****************************************************
get fileinfo for filename
*******************************************************/
static uint16 get_fileinfo(struct cli_state *cli, const char *filename)
{
uint16_t fnum = (uint16_t)-1;
uint16 mode;
/* The desired access below is the only one I could find that works
with NT4, W2KP and Samba */
if (!NT_STATUS_IS_OK(cli_ntcreate(cli, filename, 0, CREATE_ACCESS_READ,
0, FILE_SHARE_READ|FILE_SHARE_WRITE,
FILE_OPEN, 0x0, 0x0, &fnum))) {
printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
}
if (!NT_STATUS_IS_OK(cli_qfileinfo_basic(
cli, fnum, &mode, NULL, NULL, NULL,
NULL, NULL, NULL))) {
printf("Failed to file info %s: %s\n", filename,
cli_errstr(cli));
}
cli_close(cli, fnum);
return mode;
}
/*****************************************************
get sec desc for filename
*******************************************************/
static struct security_descriptor *get_secdesc(struct cli_state *cli, const char *filename)
{
uint16_t fnum = (uint16_t)-1;
struct security_descriptor *sd;
/* The desired access below is the only one I could find that works
with NT4, W2KP and Samba */
if (!NT_STATUS_IS_OK(cli_ntcreate(cli, filename, 0, CREATE_ACCESS_READ,
0, FILE_SHARE_READ|FILE_SHARE_WRITE,
FILE_OPEN, 0x0, 0x0, &fnum))) {
printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
return NULL;
}
sd = cli_query_secdesc(cli, fnum, talloc_tos());
cli_close(cli, fnum);
if (!sd) {
printf("Failed to get security descriptor\n");
return NULL;
}
return sd;
}
/*****************************************************
set sec desc for filename
*******************************************************/
static bool set_secdesc(struct cli_state *cli, const char *filename,
struct security_descriptor *sd)
{
uint16_t fnum = (uint16_t)-1;
bool result=true;
NTSTATUS status;
/* The desired access below is the only one I could find that works
with NT4, W2KP and Samba */
if (!NT_STATUS_IS_OK(cli_ntcreate(cli, filename, 0,
WRITE_DAC_ACCESS|WRITE_OWNER_ACCESS,
0, FILE_SHARE_READ|FILE_SHARE_WRITE,
FILE_OPEN, 0x0, 0x0, &fnum))) {
printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
return false;
}
status = cli_set_secdesc(cli, fnum, sd);
if (!NT_STATUS_IS_OK(status)) {
printf("ERROR: security description set failed: %s\n",
nt_errstr(status));
result=false;
}
cli_close(cli, fnum);
return result;
}
/*****************************************************
dump the acls for a file
*******************************************************/
static int cacl_dump(struct cli_state *cli, const char *filename)
{
int result = EXIT_FAILED;
struct security_descriptor *sd;
if (test_args)
return EXIT_OK;
sd = get_secdesc(cli, filename);
if (sd) {
if (sddl) {
printf("%s\n", sddl_encode(talloc_tos(), sd,
get_global_sam_sid()));
} else {
sec_desc_print(cli, stdout, sd);
}
result = EXIT_OK;
}
return result;
}
/*****************************************************
Change the ownership or group ownership of a file. Just
because the NT docs say this can't be done :-). JRA.
*******************************************************/
static int owner_set(struct cli_state *cli, enum chown_mode change_mode,
const char *filename, const char *new_username)
{
struct dom_sid sid;
struct security_descriptor *sd, *old;
size_t sd_size;
if (!StringToSid(cli, &sid, new_username))
return EXIT_PARSE_ERROR;
old = get_secdesc(cli, filename);
if (!old) {
return EXIT_FAILED;
}
sd = make_sec_desc(talloc_tos(),old->revision, old->type,
(change_mode == REQUEST_CHOWN) ? &sid : NULL,
(change_mode == REQUEST_CHGRP) ? &sid : NULL,
NULL, NULL, &sd_size);
if (!set_secdesc(cli, filename, sd)) {
return EXIT_FAILED;
}
return EXIT_OK;
}
/* The MSDN is contradictory over the ordering of ACE entries in an
ACL. However NT4 gives a "The information may have been modified
by a computer running Windows NT 5.0" if denied ACEs do not appear
before allowed ACEs. At
http://technet.microsoft.com/en-us/library/cc781716.aspx the
canonical order is specified as "Explicit Deny, Explicit Allow,
Inherited ACEs unchanged" */
static int ace_compare(struct security_ace *ace1, struct security_ace *ace2)
{
if (sec_ace_equal(ace1, ace2))
return 0;
if ((ace1->flags & SEC_ACE_FLAG_INHERITED_ACE) &&
!(ace2->flags & SEC_ACE_FLAG_INHERITED_ACE))
return 1;
if (!(ace1->flags & SEC_ACE_FLAG_INHERITED_ACE) &&
(ace2->flags & SEC_ACE_FLAG_INHERITED_ACE))
return -1;
if ((ace1->flags & SEC_ACE_FLAG_INHERITED_ACE) &&
(ace2->flags & SEC_ACE_FLAG_INHERITED_ACE))
return ace1 - ace2;
if (ace1->type != ace2->type)
return ace2->type - ace1->type;
if (dom_sid_compare(&ace1->trustee, &ace2->trustee))
return dom_sid_compare(&ace1->trustee, &ace2->trustee);
if (ace1->flags != ace2->flags)
return ace1->flags - ace2->flags;
if (ace1->access_mask != ace2->access_mask)
return ace1->access_mask - ace2->access_mask;
if (ace1->size != ace2->size)
return ace1->size - ace2->size;
return memcmp(ace1, ace2, sizeof(struct security_ace));
}
static void sort_acl(struct security_acl *the_acl)
{
uint32 i;
if (!the_acl) return;
TYPESAFE_QSORT(the_acl->aces, the_acl->num_aces, ace_compare);
for (i=1;inum_aces;) {
if (sec_ace_equal(&the_acl->aces[i-1], &the_acl->aces[i])) {
int j;
for (j=i; jnum_aces-1; j++) {
the_acl->aces[j] = the_acl->aces[j+1];
}
the_acl->num_aces--;
} else {
i++;
}
}
}
/*****************************************************
set the ACLs on a file given an ascii description
*******************************************************/
static int cacl_set(struct cli_state *cli, const char *filename,
char *the_acl, enum acl_mode mode)
{
struct security_descriptor *sd, *old;
uint32 i, j;
size_t sd_size;
int result = EXIT_OK;
if (sddl) {
sd = sddl_decode(talloc_tos(), the_acl, get_global_sam_sid());
} else {
sd = sec_desc_parse(talloc_tos(), cli, the_acl);
}
if (!sd) return EXIT_PARSE_ERROR;
if (test_args) return EXIT_OK;
old = get_secdesc(cli, filename);
if (!old) {
return EXIT_FAILED;
}
/* the logic here is rather more complex than I would like */
switch (mode) {
case SMB_ACL_DELETE:
for (i=0;sd->dacl && idacl->num_aces;i++) {
bool found = False;
for (j=0;old->dacl && jdacl->num_aces;j++) {
if (sec_ace_equal(&sd->dacl->aces[i],
&old->dacl->aces[j])) {
uint32 k;
for (k=j; kdacl->num_aces-1;k++) {
old->dacl->aces[k] = old->dacl->aces[k+1];
}
old->dacl->num_aces--;
found = True;
break;
}
}
if (!found) {
printf("ACL for ACE:");
print_ace(cli, stdout, &sd->dacl->aces[i]);
printf(" not found\n");
}
}
break;
case SMB_ACL_MODIFY:
for (i=0;sd->dacl && idacl->num_aces;i++) {
bool found = False;
for (j=0;old->dacl && jdacl->num_aces;j++) {
if (dom_sid_equal(&sd->dacl->aces[i].trustee,
&old->dacl->aces[j].trustee)) {
old->dacl->aces[j] = sd->dacl->aces[i];
found = True;
}
}
if (!found) {
fstring str;
SidToString(cli, str,
&sd->dacl->aces[i].trustee);
printf("ACL for SID %s not found\n", str);
}
}
if (sd->owner_sid) {
old->owner_sid = sd->owner_sid;
}
if (sd->group_sid) {
old->group_sid = sd->group_sid;
}
break;
case SMB_ACL_ADD:
for (i=0;sd->dacl && idacl->num_aces;i++) {
add_ace(&old->dacl, &sd->dacl->aces[i]);
}
break;
case SMB_ACL_SET:
old = sd;
break;
}
/* Denied ACE entries must come before allowed ones */
sort_acl(old->dacl);
/* Create new security descriptor and set it */
/* We used to just have "WRITE_DAC_ACCESS" without WRITE_OWNER.
But if we're sending an owner, even if it's the same as the one
that already exists then W2K3 insists we open with WRITE_OWNER access.
I need to check that setting a SD with no owner set works against WNT
and W2K. JRA.
*/
sd = make_sec_desc(talloc_tos(),old->revision, old->type,
old->owner_sid, old->group_sid,
NULL, old->dacl, &sd_size);
if (!set_secdesc(cli, filename, sd)) {
result = EXIT_FAILED;
}
return result;
}
/*****************************************************
set the inherit on a file
*******************************************************/
static int inherit(struct cli_state *cli, const char *filename,
const char *type)
{
struct security_descriptor *old,*sd;
uint32 oldattr;
size_t sd_size;
int result = EXIT_OK;
old = get_secdesc(cli, filename);
if (!old) {
return EXIT_FAILED;
}
oldattr = get_fileinfo(cli,filename);
if (strcmp(type,"allow")==0) {
if ((old->type & SEC_DESC_DACL_PROTECTED) ==
SEC_DESC_DACL_PROTECTED) {
int i;
char *parentname,*temp;
struct security_descriptor *parent;
temp = talloc_strdup(talloc_tos(), filename);
old->type=old->type & (~SEC_DESC_DACL_PROTECTED);
/* look at parent and copy in all its inheritable ACL's. */
string_replace(temp, '\\', '/');
if (!parent_dirname(talloc_tos(),temp,&parentname,NULL)) {
return EXIT_FAILED;
}
string_replace(parentname, '/', '\\');
parent = get_secdesc(cli,parentname);
for (i=0;idacl->num_aces;i++) {
struct security_ace *ace=&parent->dacl->aces[i];
/* Add inherited flag to all aces */
ace->flags=ace->flags|
SEC_ACE_FLAG_INHERITED_ACE;
if ((oldattr & aDIR) == aDIR) {
if ((ace->flags & SEC_ACE_FLAG_CONTAINER_INHERIT) ==
SEC_ACE_FLAG_CONTAINER_INHERIT) {
add_ace(&old->dacl, ace);
}
} else {
if ((ace->flags & SEC_ACE_FLAG_OBJECT_INHERIT) ==
SEC_ACE_FLAG_OBJECT_INHERIT) {
/* clear flags for files */
ace->flags=0;
add_ace(&old->dacl, ace);
}
}
}
} else {
printf("Already set to inheritable permissions.\n");
return EXIT_FAILED;
}
} else if (strcmp(type,"remove")==0) {
if ((old->type & SEC_DESC_DACL_PROTECTED) !=
SEC_DESC_DACL_PROTECTED) {
old->type=old->type | SEC_DESC_DACL_PROTECTED;
/* remove all inherited ACL's. */
if (old->dacl) {
int i;
struct security_acl *temp=old->dacl;
old->dacl=make_sec_acl(talloc_tos(), 3, 0, NULL);
for (i=temp->num_aces-1;i>=0;i--) {
struct security_ace *ace=&temp->aces[i];
/* Remove all ace with INHERITED flag set */
if ((ace->flags & SEC_ACE_FLAG_INHERITED_ACE) !=
SEC_ACE_FLAG_INHERITED_ACE) {
add_ace(&old->dacl,ace);
}
}
}
} else {
printf("Already set to no inheritable permissions.\n");
return EXIT_FAILED;
}
} else if (strcmp(type,"copy")==0) {
if ((old->type & SEC_DESC_DACL_PROTECTED) !=
SEC_DESC_DACL_PROTECTED) {
old->type=old->type | SEC_DESC_DACL_PROTECTED;
/* convert all inherited ACL's to non inherated ACL's. */
if (old->dacl) {
int i;
for (i=0;idacl->num_aces;i++) {
struct security_ace *ace=&old->dacl->aces[i];
/* Remove INHERITED FLAG from all aces */
ace->flags=ace->flags&(~SEC_ACE_FLAG_INHERITED_ACE);
}
}
} else {
printf("Already set to no inheritable permissions.\n");
return EXIT_FAILED;
}
}
/* Denied ACE entries must come before allowed ones */
sort_acl(old->dacl);
sd = make_sec_desc(talloc_tos(),old->revision, old->type,
old->owner_sid, old->group_sid,
NULL, old->dacl, &sd_size);
if (!set_secdesc(cli, filename, sd)) {
result = EXIT_FAILED;
}
return result;
}
/*****************************************************
Return a connection to a server.
*******************************************************/
static struct cli_state *connect_one(struct user_auth_info *auth_info,
const char *server, const char *share)
{
struct cli_state *c = NULL;
struct sockaddr_storage ss;
NTSTATUS nt_status;
uint32_t flags = 0;
zero_sockaddr(&ss);
if (get_cmdline_auth_info_use_kerberos(auth_info)) {
flags |= CLI_FULL_CONNECTION_USE_KERBEROS |
CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
}
if (get_cmdline_auth_info_use_machine_account(auth_info) &&
!set_cmdline_auth_info_machine_account_creds(auth_info)) {
return NULL;
}
set_cmdline_auth_info_getpass(auth_info);
nt_status = cli_full_connection(&c, global_myname(), server,
&ss, 0,
share, "?????",
get_cmdline_auth_info_username(auth_info),
lp_workgroup(),
get_cmdline_auth_info_password(auth_info),
flags,
get_cmdline_auth_info_signing_state(auth_info));
if (!NT_STATUS_IS_OK(nt_status)) {
DEBUG(0,("cli_full_connection failed! (%s)\n", nt_errstr(nt_status)));
return NULL;
}
if (get_cmdline_auth_info_smb_encrypt(auth_info)) {
nt_status = cli_cm_force_encryption(c,
get_cmdline_auth_info_username(auth_info),
get_cmdline_auth_info_password(auth_info),
lp_workgroup(),
share);
if (!NT_STATUS_IS_OK(nt_status)) {
cli_shutdown(c);
c = NULL;
}
}
return c;
}
/****************************************************************************
main program
****************************************************************************/
int main(int argc, const char *argv[])
{
char *share;
int opt;
enum acl_mode mode = SMB_ACL_SET;
static char *the_acl = NULL;
enum chown_mode change_mode = REQUEST_NONE;
int result;
char *path;
char *filename = NULL;
poptContext pc;
struct poptOption long_options[] = {
POPT_AUTOHELP
{ "delete", 'D', POPT_ARG_STRING, NULL, 'D', "Delete an acl", "ACL" },
{ "modify", 'M', POPT_ARG_STRING, NULL, 'M', "Modify an acl", "ACL" },
{ "add", 'a', POPT_ARG_STRING, NULL, 'a', "Add an acl", "ACL" },
{ "set", 'S', POPT_ARG_STRING, NULL, 'S', "Set acls", "ACLS" },
{ "chown", 'C', POPT_ARG_STRING, NULL, 'C', "Change ownership of a file", "USERNAME" },
{ "chgrp", 'G', POPT_ARG_STRING, NULL, 'G', "Change group ownership of a file", "GROUPNAME" },
{ "inherit", 'I', POPT_ARG_STRING, NULL, 'I', "Inherit allow|remove|copy" },
{ "numeric", 0, POPT_ARG_NONE, &numeric, 1, "Don't resolve sids or masks to names" },
{ "sddl", 0, POPT_ARG_NONE, &sddl, 1, "Output and input acls in sddl format" },
{ "test-args", 't', POPT_ARG_NONE, &test_args, 1, "Test arguments"},
POPT_COMMON_SAMBA
POPT_COMMON_CONNECTION
POPT_COMMON_CREDENTIALS
POPT_TABLEEND
};
struct cli_state *cli;
TALLOC_CTX *frame = talloc_stackframe();
const char *owner_username = "";
char *server;
struct user_auth_info *auth_info;
load_case_tables();
/* set default debug level to 1 regardless of what smb.conf sets */
setup_logging( "smbcacls", DEBUG_STDERR);
lp_set_cmdline("log level", "1");
setlinebuf(stdout);
lp_load(get_dyn_CONFIGFILE(),True,False,False,True);
load_interfaces();
auth_info = user_auth_info_init(frame);
if (auth_info == NULL) {
exit(1);
}
popt_common_set_auth_info(auth_info);
pc = poptGetContext("smbcacls", argc, argv, long_options, 0);
poptSetOtherOptionHelp(pc, "//server1/share1 filename\nACLs look like: "
"'ACL:user:[ALLOWED|DENIED]/flags/permissions'");
while ((opt = poptGetNextOpt(pc)) != -1) {
switch (opt) {
case 'S':
the_acl = smb_xstrdup(poptGetOptArg(pc));
mode = SMB_ACL_SET;
break;
case 'D':
the_acl = smb_xstrdup(poptGetOptArg(pc));
mode = SMB_ACL_DELETE;
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;
case 'C':
owner_username = poptGetOptArg(pc);
change_mode = REQUEST_CHOWN;
break;
case 'G':
owner_username = poptGetOptArg(pc);
change_mode = REQUEST_CHGRP;
break;
case 'I':
owner_username = poptGetOptArg(pc);
change_mode = REQUEST_INHERIT;
break;
}
}
/* Make connection to server */
if(!poptPeekArg(pc)) {
poptPrintUsage(pc, stderr, 0);
return -1;
}
path = talloc_strdup(frame, poptGetArg(pc));
if (!path) {
return -1;
}
if(!poptPeekArg(pc)) {
poptPrintUsage(pc, stderr, 0);
return -1;
}
filename = talloc_strdup(frame, poptGetArg(pc));
if (!filename) {
return -1;
}
string_replace(path,'/','\\');
server = talloc_strdup(frame, path+2);
if (!server) {
return -1;
}
share = strchr_m(server,'\\');
if (!share) {
printf("Invalid argument: %s\n", share);
return -1;
}
*share = 0;
share++;
if (!test_args) {
cli = connect_one(auth_info, server, share);
if (!cli) {
exit(EXIT_FAILED);
}
} else {
exit(0);
}
string_replace(filename, '/', '\\');
if (filename[0] != '\\') {
filename = talloc_asprintf(frame,
"\\%s",
filename);
if (!filename) {
return -1;
}
}
/* Perform requested action */
if (change_mode == REQUEST_INHERIT) {
result = inherit(cli, filename, owner_username);
} else if (change_mode != REQUEST_NONE) {
result = owner_set(cli, change_mode, filename, owner_username);
} else if (the_acl) {
result = cacl_set(cli, filename, the_acl, mode);
} else {
result = cacl_dump(cli, filename);
}
TALLOC_FREE(frame);
return result;
}