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authorJelmer Vernooij <jelmer@samba.org>2009-04-21 14:27:25 +0200
committerJelmer Vernooij <jelmer@samba.org>2009-04-21 15:14:35 +0200
commit2eff2de2f81374483df99757046f1d5ee4050155 (patch)
treef155c9246d66f978279e7f26089b7373548f80c9 /source4
parent3e75c9bd33f838cb3d47d58441123a22f7b8d317 (diff)
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Move the security_descriptor utility code to the top-level.
Diffstat (limited to 'source4')
-rw-r--r--source4/libcli/security/config.mk3
-rw-r--r--source4/libcli/security/security.h1
-rw-r--r--source4/libcli/security/security_descriptor.c533
3 files changed, 2 insertions, 535 deletions
diff --git a/source4/libcli/security/config.mk b/source4/libcli/security/config.mk
index 9d23fe9588..d08c25d66f 100644
--- a/source4/libcli/security/config.mk
+++ b/source4/libcli/security/config.mk
@@ -2,7 +2,6 @@
PUBLIC_DEPENDENCIES = LIBNDR LIBSECURITY_COMMON
LIBSECURITY_OBJ_FILES = $(addprefix $(libclisrcdir)/security/, \
- security_token.o security_descriptor.o \
- access_check.o privilege.o sddl.o) \
+ security_token.o access_check.o privilege.o sddl.o) \
$(eval $(call proto_header_template,$(libclisrcdir)/security/proto.h,$(LIBSECURITY_OBJ_FILES:.o=.c)))
diff --git a/source4/libcli/security/security.h b/source4/libcli/security/security.h
index 2608c9f7ed..6dbbe014e7 100644
--- a/source4/libcli/security/security.h
+++ b/source4/libcli/security/security.h
@@ -33,3 +33,4 @@ struct auth_session_info;
#include "libcli/security/secace.h"
#include "libcli/security/secacl.h"
#include "libcli/security/proto.h"
+#include "libcli/security/security_descriptor.h"
diff --git a/source4/libcli/security/security_descriptor.c b/source4/libcli/security/security_descriptor.c
deleted file mode 100644
index 8e9c7eb4a9..0000000000
--- a/source4/libcli/security/security_descriptor.c
+++ /dev/null
@@ -1,533 +0,0 @@
-/*
- Unix SMB/CIFS implementation.
-
- security descriptror utility functions
-
- Copyright (C) Andrew Tridgell 2004
-
- 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 <http://www.gnu.org/licenses/>.
-*/
-
-#include "includes.h"
-#include "libcli/security/security.h"
-
-/*
- return a blank security descriptor (no owners, dacl or sacl)
-*/
-struct security_descriptor *security_descriptor_initialise(TALLOC_CTX *mem_ctx)
-{
- struct security_descriptor *sd;
-
- sd = talloc(mem_ctx, struct security_descriptor);
- if (!sd) {
- return NULL;
- }
-
- sd->revision = SD_REVISION;
- /* we mark as self relative, even though it isn't while it remains
- a pointer in memory because this simplifies the ndr code later.
- All SDs that we store/emit are in fact SELF_RELATIVE
- */
- sd->type = SEC_DESC_SELF_RELATIVE;
-
- sd->owner_sid = NULL;
- sd->group_sid = NULL;
- sd->sacl = NULL;
- sd->dacl = NULL;
-
- return sd;
-}
-
-static struct security_acl *security_acl_dup(TALLOC_CTX *mem_ctx,
- const struct security_acl *oacl)
-{
- struct security_acl *nacl;
-
- nacl = talloc (mem_ctx, struct security_acl);
- if (nacl == NULL) {
- return NULL;
- }
-
- nacl->aces = (struct security_ace *)talloc_memdup (nacl, oacl->aces, sizeof(struct security_ace) * oacl->num_aces);
- if ((nacl->aces == NULL) && (oacl->num_aces > 0)) {
- goto failed;
- }
-
- nacl->revision = oacl->revision;
- nacl->size = oacl->size;
- nacl->num_aces = oacl->num_aces;
-
- return nacl;
-
- failed:
- talloc_free (nacl);
- return NULL;
-
-}
-
-/*
- talloc and copy a security descriptor
- */
-struct security_descriptor *security_descriptor_copy(TALLOC_CTX *mem_ctx,
- const struct security_descriptor *osd)
-{
- struct security_descriptor *nsd;
-
- nsd = talloc_zero(mem_ctx, struct security_descriptor);
- if (!nsd) {
- return NULL;
- }
-
- if (osd->owner_sid) {
- nsd->owner_sid = dom_sid_dup(nsd, osd->owner_sid);
- if (nsd->owner_sid == NULL) {
- goto failed;
- }
- }
-
- if (osd->group_sid) {
- nsd->group_sid = dom_sid_dup(nsd, osd->group_sid);
- if (nsd->group_sid == NULL) {
- goto failed;
- }
- }
-
- if (osd->sacl) {
- nsd->sacl = security_acl_dup(nsd, osd->sacl);
- if (nsd->sacl == NULL) {
- goto failed;
- }
- }
-
- if (osd->dacl) {
- nsd->dacl = security_acl_dup(nsd, osd->dacl);
- if (nsd->dacl == NULL) {
- goto failed;
- }
- }
-
- nsd->revision = osd->revision;
- nsd->type = osd->type;
-
- return nsd;
-
- failed:
- talloc_free(nsd);
-
- return NULL;
-}
-
-/*
- add an ACE to an ACL of a security_descriptor
-*/
-
-static NTSTATUS security_descriptor_acl_add(struct security_descriptor *sd,
- bool add_to_sacl,
- const struct security_ace *ace)
-{
- struct security_acl *acl = NULL;
-
- if (add_to_sacl) {
- acl = sd->sacl;
- } else {
- acl = sd->dacl;
- }
-
- if (acl == NULL) {
- acl = talloc(sd, struct security_acl);
- if (acl == NULL) {
- return NT_STATUS_NO_MEMORY;
- }
- acl->revision = SECURITY_ACL_REVISION_NT4;
- acl->size = 0;
- acl->num_aces = 0;
- acl->aces = NULL;
- }
-
- acl->aces = talloc_realloc(acl, acl->aces,
- struct security_ace, acl->num_aces+1);
- if (acl->aces == NULL) {
- return NT_STATUS_NO_MEMORY;
- }
-
- acl->aces[acl->num_aces] = *ace;
-
- switch (acl->aces[acl->num_aces].type) {
- case SEC_ACE_TYPE_ACCESS_ALLOWED_OBJECT:
- case SEC_ACE_TYPE_ACCESS_DENIED_OBJECT:
- case SEC_ACE_TYPE_SYSTEM_AUDIT_OBJECT:
- case SEC_ACE_TYPE_SYSTEM_ALARM_OBJECT:
- acl->revision = SECURITY_ACL_REVISION_ADS;
- break;
- default:
- break;
- }
-
- acl->num_aces++;
-
- if (add_to_sacl) {
- sd->sacl = acl;
- sd->type |= SEC_DESC_SACL_PRESENT;
- } else {
- sd->dacl = acl;
- sd->type |= SEC_DESC_DACL_PRESENT;
- }
-
- return NT_STATUS_OK;
-}
-
-/*
- add an ACE to the SACL of a security_descriptor
-*/
-
-NTSTATUS security_descriptor_sacl_add(struct security_descriptor *sd,
- const struct security_ace *ace)
-{
- return security_descriptor_acl_add(sd, true, ace);
-}
-
-/*
- add an ACE to the DACL of a security_descriptor
-*/
-
-NTSTATUS security_descriptor_dacl_add(struct security_descriptor *sd,
- const struct security_ace *ace)
-{
- return security_descriptor_acl_add(sd, false, ace);
-}
-
-/*
- delete the ACE corresponding to the given trustee in an ACL of a
- security_descriptor
-*/
-
-static NTSTATUS security_descriptor_acl_del(struct security_descriptor *sd,
- bool sacl_del,
- const struct dom_sid *trustee)
-{
- int i;
- bool found = false;
- struct security_acl *acl = NULL;
-
- if (sacl_del) {
- acl = sd->sacl;
- } else {
- acl = sd->dacl;
- }
-
- if (acl == NULL) {
- return NT_STATUS_OBJECT_NAME_NOT_FOUND;
- }
-
- /* there can be multiple ace's for one trustee */
- for (i=0;i<acl->num_aces;i++) {
- if (dom_sid_equal(trustee, &acl->aces[i].trustee)) {
- memmove(&acl->aces[i], &acl->aces[i+1],
- sizeof(acl->aces[i]) * (acl->num_aces - (i+1)));
- acl->num_aces--;
- if (acl->num_aces == 0) {
- acl->aces = NULL;
- }
- found = true;
- }
- }
-
- if (!found) {
- return NT_STATUS_OBJECT_NAME_NOT_FOUND;
- }
-
- acl->revision = SECURITY_ACL_REVISION_NT4;
-
- for (i=0;i<acl->num_aces;i++) {
- switch (acl->aces[i].type) {
- case SEC_ACE_TYPE_ACCESS_ALLOWED_OBJECT:
- case SEC_ACE_TYPE_ACCESS_DENIED_OBJECT:
- case SEC_ACE_TYPE_SYSTEM_AUDIT_OBJECT:
- case SEC_ACE_TYPE_SYSTEM_ALARM_OBJECT:
- acl->revision = SECURITY_ACL_REVISION_ADS;
- return NT_STATUS_OK;
- default:
- break; /* only for the switch statement */
- }
- }
-
- return NT_STATUS_OK;
-}
-
-/*
- delete the ACE corresponding to the given trustee in the DACL of a
- security_descriptor
-*/
-
-NTSTATUS security_descriptor_dacl_del(struct security_descriptor *sd,
- const struct dom_sid *trustee)
-{
- return security_descriptor_acl_del(sd, false, trustee);
-}
-
-/*
- delete the ACE corresponding to the given trustee in the SACL of a
- security_descriptor
-*/
-
-NTSTATUS security_descriptor_sacl_del(struct security_descriptor *sd,
- const struct dom_sid *trustee)
-{
- return security_descriptor_acl_del(sd, true, trustee);
-}
-
-/*
- compare two security ace structures
-*/
-bool security_ace_equal(const struct security_ace *ace1,
- const struct security_ace *ace2)
-{
- if (ace1 == ace2) return true;
- if (!ace1 || !ace2) return false;
- if (ace1->type != ace2->type) return false;
- if (ace1->flags != ace2->flags) return false;
- if (ace1->access_mask != ace2->access_mask) return false;
- if (!dom_sid_equal(&ace1->trustee, &ace2->trustee)) return false;
-
- return true;
-}
-
-
-/*
- compare two security acl structures
-*/
-bool security_acl_equal(const struct security_acl *acl1,
- const struct security_acl *acl2)
-{
- int i;
-
- if (acl1 == acl2) return true;
- if (!acl1 || !acl2) return false;
- if (acl1->revision != acl2->revision) return false;
- if (acl1->num_aces != acl2->num_aces) return false;
-
- for (i=0;i<acl1->num_aces;i++) {
- if (!security_ace_equal(&acl1->aces[i], &acl2->aces[i])) return false;
- }
- return true;
-}
-
-/*
- compare two security descriptors.
-*/
-bool security_descriptor_equal(const struct security_descriptor *sd1,
- const struct security_descriptor *sd2)
-{
- if (sd1 == sd2) return true;
- if (!sd1 || !sd2) return false;
- if (sd1->revision != sd2->revision) return false;
- if (sd1->type != sd2->type) return false;
-
- if (!dom_sid_equal(sd1->owner_sid, sd2->owner_sid)) return false;
- if (!dom_sid_equal(sd1->group_sid, sd2->group_sid)) return false;
- if (!security_acl_equal(sd1->sacl, sd2->sacl)) return false;
- if (!security_acl_equal(sd1->dacl, sd2->dacl)) return false;
-
- return true;
-}
-
-/*
- compare two security descriptors, but allow certain (missing) parts
- to be masked out of the comparison
-*/
-bool security_descriptor_mask_equal(const struct security_descriptor *sd1,
- const struct security_descriptor *sd2,
- uint32_t mask)
-{
- if (sd1 == sd2) return true;
- if (!sd1 || !sd2) return false;
- if (sd1->revision != sd2->revision) return false;
- if ((sd1->type & mask) != (sd2->type & mask)) return false;
-
- if (!dom_sid_equal(sd1->owner_sid, sd2->owner_sid)) return false;
- if (!dom_sid_equal(sd1->group_sid, sd2->group_sid)) return false;
- if ((mask & SEC_DESC_DACL_PRESENT) && !security_acl_equal(sd1->dacl, sd2->dacl)) return false;
- if ((mask & SEC_DESC_SACL_PRESENT) && !security_acl_equal(sd1->sacl, sd2->sacl)) return false;
-
- return true;
-}
-
-
-static struct security_descriptor *security_descriptor_appendv(struct security_descriptor *sd,
- bool add_ace_to_sacl,
- va_list ap)
-{
- const char *sidstr;
-
- while ((sidstr = va_arg(ap, const char *))) {
- struct dom_sid *sid;
- struct security_ace *ace = talloc(sd, struct security_ace);
- NTSTATUS status;
-
- if (ace == NULL) {
- talloc_free(sd);
- return NULL;
- }
- ace->type = va_arg(ap, unsigned int);
- ace->access_mask = va_arg(ap, unsigned int);
- ace->flags = va_arg(ap, unsigned int);
- sid = dom_sid_parse_talloc(ace, sidstr);
- if (sid == NULL) {
- talloc_free(sd);
- return NULL;
- }
- ace->trustee = *sid;
- if (add_ace_to_sacl) {
- status = security_descriptor_sacl_add(sd, ace);
- } else {
- status = security_descriptor_dacl_add(sd, ace);
- }
- /* TODO: check: would talloc_free(ace) here be correct? */
- if (!NT_STATUS_IS_OK(status)) {
- talloc_free(sd);
- return NULL;
- }
- }
-
- return sd;
-}
-
-struct security_descriptor *security_descriptor_append(struct security_descriptor *sd,
- ...)
-{
- va_list ap;
-
- va_start(ap, sd);
- sd = security_descriptor_appendv(sd, false, ap);
- va_end(ap);
-
- return sd;
-}
-
-static struct security_descriptor *security_descriptor_createv(TALLOC_CTX *mem_ctx,
- uint16_t sd_type,
- const char *owner_sid,
- const char *group_sid,
- bool add_ace_to_sacl,
- va_list ap)
-{
- struct security_descriptor *sd;
-
- sd = security_descriptor_initialise(mem_ctx);
- if (sd == NULL) {
- return NULL;
- }
-
- sd->type |= sd_type;
-
- if (owner_sid) {
- sd->owner_sid = dom_sid_parse_talloc(sd, owner_sid);
- if (sd->owner_sid == NULL) {
- talloc_free(sd);
- return NULL;
- }
- }
- if (group_sid) {
- sd->group_sid = dom_sid_parse_talloc(sd, group_sid);
- if (sd->group_sid == NULL) {
- talloc_free(sd);
- return NULL;
- }
- }
-
- return security_descriptor_appendv(sd, add_ace_to_sacl, ap);
-}
-
-/*
- create a security descriptor using string SIDs. This is used by the
- torture code to allow the easy creation of complex ACLs
- This is a varargs function. The list of DACL ACEs ends with a NULL sid.
-
- Each ACE contains a set of 4 parameters:
- SID, ACCESS_TYPE, MASK, FLAGS
-
- a typical call would be:
-
- sd = security_descriptor_dacl_create(mem_ctx,
- sd_type_flags,
- mysid,
- mygroup,
- SID_NT_AUTHENTICATED_USERS,
- SEC_ACE_TYPE_ACCESS_ALLOWED,
- SEC_FILE_ALL,
- SEC_ACE_FLAG_OBJECT_INHERIT,
- NULL);
- that would create a sd with one DACL ACE
-*/
-
-struct security_descriptor *security_descriptor_dacl_create(TALLOC_CTX *mem_ctx,
- uint16_t sd_type,
- const char *owner_sid,
- const char *group_sid,
- ...)
-{
- struct security_descriptor *sd = NULL;
- va_list ap;
- va_start(ap, group_sid);
- sd = security_descriptor_createv(mem_ctx, sd_type, owner_sid,
- group_sid, false, ap);
- va_end(ap);
-
- return sd;
-}
-
-struct security_descriptor *security_descriptor_sacl_create(TALLOC_CTX *mem_ctx,
- uint16_t sd_type,
- const char *owner_sid,
- const char *group_sid,
- ...)
-{
- struct security_descriptor *sd = NULL;
- va_list ap;
- va_start(ap, group_sid);
- sd = security_descriptor_createv(mem_ctx, sd_type, owner_sid,
- group_sid, true, ap);
- va_end(ap);
-
- return sd;
-}
-
-struct security_ace *security_ace_create(TALLOC_CTX *mem_ctx,
- const char *sid_str,
- enum security_ace_type type,
- uint32_t access_mask,
- uint8_t flags)
-
-{
- struct dom_sid *sid;
- struct security_ace *ace;
-
- ace = talloc_zero(mem_ctx, struct security_ace);
- if (ace == NULL) {
- return NULL;
- }
-
- sid = dom_sid_parse_talloc(ace, sid_str);
- if (sid == NULL) {
- talloc_free(ace);
- return NULL;
- }
-
- ace->trustee = *sid;
- ace->type = type;
- ace->access_mask = access_mask;
- ace->flags = flags;
-
- return ace;
-}