diff options
Diffstat (limited to '')
| -rw-r--r-- | libcli/security/sddl.c | 736 |
1 files changed, 736 insertions, 0 deletions
diff --git a/libcli/security/sddl.c b/libcli/security/sddl.c new file mode 100644 index 0000000..5bb65dd --- /dev/null +++ b/libcli/security/sddl.c @@ -0,0 +1,736 @@ +/* + Unix SMB/CIFS implementation. + + security descriptor description language functions + + Copyright (C) Andrew Tridgell 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 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" +#include "librpc/gen_ndr/ndr_misc.h" +#include "system/locale.h" + +struct flag_map { + const char *name; + uint32_t flag; +}; + +static bool sddl_map_flag( + const struct flag_map *map, + const char *str, + size_t *plen, + uint32_t *pflag) +{ + while (map->name != NULL) { + size_t len = strlen(map->name); + int cmp = strncmp(map->name, str, len); + + if (cmp == 0) { + *plen = len; + *pflag = map->flag; + return true; + } + map += 1; + } + return false; +} + +/* + map a series of letter codes into a uint32_t +*/ +static bool sddl_map_flags(const struct flag_map *map, const char *str, + uint32_t *pflags, size_t *plen) +{ + const char *str0 = str; + if (plen != NULL) { + *plen = 0; + } + *pflags = 0; + while (str[0] && isupper(str[0])) { + size_t len; + uint32_t flags; + bool found; + + found = sddl_map_flag(map, str, &len, &flags); + if (!found) { + DEBUG(1, ("Unknown flag - %s in %s\n", str, str0)); + return false; + } + + *pflags |= flags; + if (plen != NULL) { + *plen += len; + } + str += len; + } + return true; +} + +/* + a mapping between the 2 letter SID codes and sid strings +*/ +static const struct { + const char *code; + const char *sid; + uint32_t rid; +} sid_codes[] = { + { .code = "WD", .sid = SID_WORLD }, + + { .code = "CO", .sid = SID_CREATOR_OWNER }, + { .code = "CG", .sid = SID_CREATOR_GROUP }, + { .code = "OW", .sid = SID_OWNER_RIGHTS }, + + { .code = "NU", .sid = SID_NT_NETWORK }, + { .code = "IU", .sid = SID_NT_INTERACTIVE }, + { .code = "SU", .sid = SID_NT_SERVICE }, + { .code = "AN", .sid = SID_NT_ANONYMOUS }, + { .code = "ED", .sid = SID_NT_ENTERPRISE_DCS }, + { .code = "PS", .sid = SID_NT_SELF }, + { .code = "AU", .sid = SID_NT_AUTHENTICATED_USERS }, + { .code = "RC", .sid = SID_NT_RESTRICTED }, + { .code = "SY", .sid = SID_NT_SYSTEM }, + { .code = "LS", .sid = SID_NT_LOCAL_SERVICE }, + { .code = "NS", .sid = SID_NT_NETWORK_SERVICE }, + { .code = "WR", .sid = SID_SECURITY_RESTRICTED_CODE }, + + { .code = "BA", .sid = SID_BUILTIN_ADMINISTRATORS }, + { .code = "BU", .sid = SID_BUILTIN_USERS }, + { .code = "BG", .sid = SID_BUILTIN_GUESTS }, + { .code = "PU", .sid = SID_BUILTIN_POWER_USERS }, + { .code = "AO", .sid = SID_BUILTIN_ACCOUNT_OPERATORS }, + { .code = "SO", .sid = SID_BUILTIN_SERVER_OPERATORS }, + { .code = "PO", .sid = SID_BUILTIN_PRINT_OPERATORS }, + { .code = "BO", .sid = SID_BUILTIN_BACKUP_OPERATORS }, + { .code = "RE", .sid = SID_BUILTIN_REPLICATOR }, + { .code = "RU", .sid = SID_BUILTIN_PREW2K }, + { .code = "RD", .sid = SID_BUILTIN_REMOTE_DESKTOP_USERS }, + { .code = "NO", .sid = SID_BUILTIN_NETWORK_CONF_OPERATORS }, + + { .code = "MU", .sid = SID_BUILTIN_PERFMON_USERS }, + { .code = "LU", .sid = SID_BUILTIN_PERFLOG_USERS }, + { .code = "IS", .sid = SID_BUILTIN_IUSERS }, + { .code = "CY", .sid = SID_BUILTIN_CRYPTO_OPERATORS }, + { .code = "ER", .sid = SID_BUILTIN_EVENT_LOG_READERS }, + { .code = "CD", .sid = SID_BUILTIN_CERT_SERV_DCOM_ACCESS }, + { .code = "RA", .sid = SID_BUILTIN_RDS_REMOTE_ACCESS_SERVERS }, + { .code = "ES", .sid = SID_BUILTIN_RDS_ENDPOINT_SERVERS }, + { .code = "MS", .sid = SID_BUILTIN_RDS_MANAGEMENT_SERVERS }, + { .code = "HA", .sid = SID_BUILTIN_HYPER_V_ADMINS }, + { .code = "AA", .sid = SID_BUILTIN_ACCESS_CONTROL_ASSISTANCE_OPS }, + { .code = "RM", .sid = SID_BUILTIN_REMOTE_MANAGEMENT_USERS }, + + { .code = "UD", .sid = SID_USER_MODE_DRIVERS }, + + { .code = "AC", .sid = SID_SECURITY_BUILTIN_PACKAGE_ANY_PACKAGE }, + + { .code = "LW", .sid = SID_SECURITY_MANDATORY_LOW }, + { .code = "ME", .sid = SID_SECURITY_MANDATORY_MEDIUM }, + { .code = "MP", .sid = SID_SECURITY_MANDATORY_MEDIUM_PLUS }, + { .code = "HI", .sid = SID_SECURITY_MANDATORY_HIGH }, + { .code = "SI", .sid = SID_SECURITY_MANDATORY_SYSTEM }, + + { .code = "AS", .sid = SID_AUTHENTICATION_AUTHORITY_ASSERTED_IDENTITY }, + { .code = "SS", .sid = SID_SERVICE_ASSERTED_IDENTITY }, + + { .code = "RO", .sid = NULL, .rid = DOMAIN_RID_ENTERPRISE_READONLY_DCS }, + + { .code = "LA", .sid = NULL, .rid = DOMAIN_RID_ADMINISTRATOR }, + { .code = "LG", .sid = NULL, .rid = DOMAIN_RID_GUEST }, + + { .code = "DA", .sid = NULL, .rid = DOMAIN_RID_ADMINS }, + { .code = "DU", .sid = NULL, .rid = DOMAIN_RID_USERS }, + { .code = "DG", .sid = NULL, .rid = DOMAIN_RID_GUESTS }, + { .code = "DC", .sid = NULL, .rid = DOMAIN_RID_DOMAIN_MEMBERS }, + { .code = "DD", .sid = NULL, .rid = DOMAIN_RID_DCS }, + { .code = "CA", .sid = NULL, .rid = DOMAIN_RID_CERT_ADMINS }, + { .code = "SA", .sid = NULL, .rid = DOMAIN_RID_SCHEMA_ADMINS }, + { .code = "EA", .sid = NULL, .rid = DOMAIN_RID_ENTERPRISE_ADMINS }, + { .code = "PA", .sid = NULL, .rid = DOMAIN_RID_POLICY_ADMINS }, + + { .code = "CN", .sid = NULL, .rid = DOMAIN_RID_CLONEABLE_CONTROLLERS }, + + { .code = "AP", .sid = NULL, .rid = DOMAIN_RID_PROTECTED_USERS }, + { .code = "KA", .sid = NULL, .rid = DOMAIN_RID_KEY_ADMINS }, + { .code = "EK", .sid = NULL, .rid = DOMAIN_RID_ENTERPRISE_KEY_ADMINS }, + + { .code = "RS", .sid = NULL, .rid = DOMAIN_RID_RAS_SERVERS } +}; + +/* + decode a SID + It can either be a special 2 letter code, or in S-* format +*/ +static struct dom_sid *sddl_decode_sid(TALLOC_CTX *mem_ctx, const char **sddlp, + const struct dom_sid *domain_sid) +{ + const char *sddl = (*sddlp); + size_t i; + + /* see if its in the numeric format */ + if (strncmp(sddl, "S-", 2) == 0) { + struct dom_sid *sid; + char *sid_str; + size_t len = strspn(sddl+2, "-0123456789"); + sid_str = talloc_strndup(mem_ctx, sddl, len+2); + if (!sid_str) { + return NULL; + } + (*sddlp) += len+2; + sid = dom_sid_parse_talloc(mem_ctx, sid_str); + talloc_free(sid_str); + return sid; + } + + /* now check for one of the special codes */ + for (i=0;i<ARRAY_SIZE(sid_codes);i++) { + if (strncmp(sid_codes[i].code, sddl, 2) == 0) break; + } + if (i == ARRAY_SIZE(sid_codes)) { + DEBUG(1,("Unknown sddl sid code '%2.2s'\n", sddl)); + return NULL; + } + + (*sddlp) += 2; + + if (sid_codes[i].sid == NULL) { + return dom_sid_add_rid(mem_ctx, domain_sid, sid_codes[i].rid); + } + + return dom_sid_parse_talloc(mem_ctx, sid_codes[i].sid); +} + +static const struct flag_map ace_types[] = { + { "AU", SEC_ACE_TYPE_SYSTEM_AUDIT }, + { "AL", SEC_ACE_TYPE_SYSTEM_ALARM }, + { "OA", SEC_ACE_TYPE_ACCESS_ALLOWED_OBJECT }, + { "OD", SEC_ACE_TYPE_ACCESS_DENIED_OBJECT }, + { "OU", SEC_ACE_TYPE_SYSTEM_AUDIT_OBJECT }, + { "OL", SEC_ACE_TYPE_SYSTEM_ALARM_OBJECT }, + { "A", SEC_ACE_TYPE_ACCESS_ALLOWED }, + { "D", SEC_ACE_TYPE_ACCESS_DENIED }, + { NULL, 0 } +}; + +static const struct flag_map ace_flags[] = { + { "OI", SEC_ACE_FLAG_OBJECT_INHERIT }, + { "CI", SEC_ACE_FLAG_CONTAINER_INHERIT }, + { "NP", SEC_ACE_FLAG_NO_PROPAGATE_INHERIT }, + { "IO", SEC_ACE_FLAG_INHERIT_ONLY }, + { "ID", SEC_ACE_FLAG_INHERITED_ACE }, + { "SA", SEC_ACE_FLAG_SUCCESSFUL_ACCESS }, + { "FA", SEC_ACE_FLAG_FAILED_ACCESS }, + { NULL, 0 }, +}; + +static const struct flag_map ace_access_mask[] = { + { "RP", SEC_ADS_READ_PROP }, + { "WP", SEC_ADS_WRITE_PROP }, + { "CR", SEC_ADS_CONTROL_ACCESS }, + { "CC", SEC_ADS_CREATE_CHILD }, + { "DC", SEC_ADS_DELETE_CHILD }, + { "LC", SEC_ADS_LIST }, + { "LO", SEC_ADS_LIST_OBJECT }, + { "RC", SEC_STD_READ_CONTROL }, + { "WO", SEC_STD_WRITE_OWNER }, + { "WD", SEC_STD_WRITE_DAC }, + { "SD", SEC_STD_DELETE }, + { "DT", SEC_ADS_DELETE_TREE }, + { "SW", SEC_ADS_SELF_WRITE }, + { "GA", SEC_GENERIC_ALL }, + { "GR", SEC_GENERIC_READ }, + { "GW", SEC_GENERIC_WRITE }, + { "GX", SEC_GENERIC_EXECUTE }, + { NULL, 0 } +}; + +static const struct flag_map decode_ace_access_mask[] = { + { "FA", FILE_ALL_ACCESS }, + { "FR", FILE_GENERIC_READ }, + { "FW", FILE_GENERIC_WRITE }, + { "FX", FILE_GENERIC_EXECUTE }, + { NULL, 0 }, +}; + +static bool sddl_decode_access(const char *str, uint32_t *pmask) +{ + const char *str0 = str; + uint32_t mask = 0; + int cmp; + + cmp = strncmp(str, "0x", 2); + if (cmp == 0) { + *pmask = strtol(str, NULL, 16); + return true; + } + + while ((str[0] != '\0') && isupper(str[0])) { + uint32_t flags = 0; + size_t len = 0; + bool found; + + found = sddl_map_flag( + ace_access_mask, str, &len, &flags); + found |= sddl_map_flag( + decode_ace_access_mask, str, &len, &flags); + if (!found) { + DEBUG(1, ("Unknown flag - %s in %s\n", str, str0)); + return false; + } + mask |= flags; + str += len; + } + + *pmask = mask; + return true; +} + +/* + decode an ACE + return true on success, false on failure + note that this routine modifies the string +*/ +static bool sddl_decode_ace(TALLOC_CTX *mem_ctx, struct security_ace *ace, char *str, + const struct dom_sid *domain_sid) +{ + const char *tok[6]; + const char *s; + int i; + uint32_t v; + struct dom_sid *sid; + bool ok; + + ZERO_STRUCTP(ace); + + /* parse out the 6 tokens */ + tok[0] = str; + for (i=0;i<5;i++) { + char *ptr = strchr(str, ';'); + if (ptr == NULL) return false; + *ptr = 0; + str = ptr+1; + tok[i+1] = str; + } + + /* parse ace type */ + if (!sddl_map_flags(ace_types, tok[0], &v, NULL)) { + return false; + } + ace->type = v; + + /* ace flags */ + if (!sddl_map_flags(ace_flags, tok[1], &v, NULL)) { + return false; + } + ace->flags = v; + + /* access mask */ + ok = sddl_decode_access(tok[2], &ace->access_mask); + if (!ok) { + return false; + } + + /* object */ + if (tok[3][0] != 0) { + NTSTATUS status = GUID_from_string(tok[3], + &ace->object.object.type.type); + if (!NT_STATUS_IS_OK(status)) { + return false; + } + ace->object.object.flags |= SEC_ACE_OBJECT_TYPE_PRESENT; + } + + /* inherit object */ + if (tok[4][0] != 0) { + NTSTATUS status = GUID_from_string(tok[4], + &ace->object.object.inherited_type.inherited_type); + if (!NT_STATUS_IS_OK(status)) { + return false; + } + ace->object.object.flags |= SEC_ACE_INHERITED_OBJECT_TYPE_PRESENT; + } + + /* trustee */ + s = tok[5]; + sid = sddl_decode_sid(mem_ctx, &s, domain_sid); + if (sid == NULL) { + return false; + } + ace->trustee = *sid; + talloc_free(sid); + + return true; +} + +static const struct flag_map acl_flags[] = { + { "P", SEC_DESC_DACL_PROTECTED }, + { "AR", SEC_DESC_DACL_AUTO_INHERIT_REQ }, + { "AI", SEC_DESC_DACL_AUTO_INHERITED }, + { NULL, 0 } +}; + +/* + decode an ACL +*/ +static struct security_acl *sddl_decode_acl(struct security_descriptor *sd, + const char **sddlp, uint32_t *flags, + const struct dom_sid *domain_sid) +{ + const char *sddl = *sddlp; + struct security_acl *acl; + size_t len; + + *flags = 0; + + acl = talloc_zero(sd, struct security_acl); + if (acl == NULL) return NULL; + acl->revision = SECURITY_ACL_REVISION_ADS; + + if (isupper(sddl[0]) && sddl[1] == ':') { + /* its an empty ACL */ + return acl; + } + + /* work out the ACL flags */ + if (!sddl_map_flags(acl_flags, sddl, flags, &len)) { + talloc_free(acl); + return NULL; + } + sddl += len; + + /* now the ACEs */ + while (*sddl == '(') { + char *astr; + len = strcspn(sddl+1, ")"); + astr = talloc_strndup(acl, sddl+1, len); + if (astr == NULL || sddl[len+1] != ')') { + talloc_free(acl); + return NULL; + } + acl->aces = talloc_realloc(acl, acl->aces, struct security_ace, + acl->num_aces+1); + if (acl->aces == NULL) { + talloc_free(acl); + return NULL; + } + if (!sddl_decode_ace(acl->aces, &acl->aces[acl->num_aces], + astr, domain_sid)) { + talloc_free(acl); + return NULL; + } + 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; + } + talloc_free(astr); + sddl += len+2; + acl->num_aces++; + } + + (*sddlp) = sddl; + return acl; +} + +/* + decode a security descriptor in SDDL format +*/ +struct security_descriptor *sddl_decode(TALLOC_CTX *mem_ctx, const char *sddl, + const struct dom_sid *domain_sid) +{ + struct security_descriptor *sd; + sd = talloc_zero(mem_ctx, struct security_descriptor); + + sd->revision = SECURITY_DESCRIPTOR_REVISION_1; + sd->type = SEC_DESC_SELF_RELATIVE; + + while (*sddl) { + uint32_t flags; + char c = sddl[0]; + if (sddl[1] != ':') goto failed; + + sddl += 2; + switch (c) { + case 'D': + if (sd->dacl != NULL) goto failed; + sd->dacl = sddl_decode_acl(sd, &sddl, &flags, domain_sid); + if (sd->dacl == NULL) goto failed; + sd->type |= flags | SEC_DESC_DACL_PRESENT; + break; + case 'S': + if (sd->sacl != NULL) goto failed; + sd->sacl = sddl_decode_acl(sd, &sddl, &flags, domain_sid); + if (sd->sacl == NULL) goto failed; + /* this relies on the SEC_DESC_SACL_* flags being + 1 bit shifted from the SEC_DESC_DACL_* flags */ + sd->type |= (flags<<1) | SEC_DESC_SACL_PRESENT; + break; + case 'O': + if (sd->owner_sid != NULL) goto failed; + sd->owner_sid = sddl_decode_sid(sd, &sddl, domain_sid); + if (sd->owner_sid == NULL) goto failed; + break; + case 'G': + if (sd->group_sid != NULL) goto failed; + sd->group_sid = sddl_decode_sid(sd, &sddl, domain_sid); + if (sd->group_sid == NULL) goto failed; + break; + } + } + + return sd; + +failed: + DEBUG(2,("Badly formatted SDDL '%s'\n", sddl)); + talloc_free(sd); + return NULL; +} + +/* + turn a set of flags into a string +*/ +static char *sddl_flags_to_string(TALLOC_CTX *mem_ctx, const struct flag_map *map, + uint32_t flags, bool check_all) +{ + int i; + char *s; + + /* try to find an exact match */ + for (i=0;map[i].name;i++) { + if (map[i].flag == flags) { + return talloc_strdup(mem_ctx, map[i].name); + } + } + + s = talloc_strdup(mem_ctx, ""); + + /* now by bits */ + for (i=0;map[i].name;i++) { + if ((flags & map[i].flag) != 0) { + s = talloc_asprintf_append_buffer(s, "%s", map[i].name); + if (s == NULL) goto failed; + flags &= ~map[i].flag; + } + } + + if (check_all && flags != 0) { + goto failed; + } + + return s; + +failed: + talloc_free(s); + return NULL; +} + +/* + encode a sid in SDDL format +*/ +static char *sddl_encode_sid(TALLOC_CTX *mem_ctx, const struct dom_sid *sid, + const struct dom_sid *domain_sid) +{ + size_t i; + char *sidstr; + + sidstr = dom_sid_string(mem_ctx, sid); + if (sidstr == NULL) return NULL; + + /* seen if its a well known sid */ + for (i=0;sid_codes[i].sid;i++) { + if (strcmp(sidstr, sid_codes[i].sid) == 0) { + talloc_free(sidstr); + return talloc_strdup(mem_ctx, sid_codes[i].code); + } + } + + /* or a well known rid in our domain */ + if (dom_sid_in_domain(domain_sid, sid)) { + uint32_t rid = sid->sub_auths[sid->num_auths-1]; + for (;i<ARRAY_SIZE(sid_codes);i++) { + if (rid == sid_codes[i].rid) { + talloc_free(sidstr); + return talloc_strdup(mem_ctx, sid_codes[i].code); + } + } + } + + talloc_free(sidstr); + + /* TODO: encode well known sids as two letter codes */ + return dom_sid_string(mem_ctx, sid); +} + + +/* + encode an ACE in SDDL format +*/ +static char *sddl_encode_ace(TALLOC_CTX *mem_ctx, const struct security_ace *ace, + const struct dom_sid *domain_sid) +{ + char *sddl = NULL; + TALLOC_CTX *tmp_ctx; + struct GUID_txt_buf object_buf, iobject_buf; + const char *sddl_type="", *sddl_flags="", *sddl_mask="", + *sddl_object="", *sddl_iobject="", *sddl_trustee=""; + + tmp_ctx = talloc_new(mem_ctx); + if (tmp_ctx == NULL) { + DEBUG(0, ("talloc_new failed\n")); + return NULL; + } + + sddl_type = sddl_flags_to_string(tmp_ctx, ace_types, ace->type, true); + if (sddl_type == NULL) { + goto failed; + } + + sddl_flags = sddl_flags_to_string(tmp_ctx, ace_flags, ace->flags, + true); + if (sddl_flags == NULL) { + goto failed; + } + + sddl_mask = sddl_flags_to_string(tmp_ctx, ace_access_mask, + ace->access_mask, true); + if (sddl_mask == NULL) { + sddl_mask = talloc_asprintf(tmp_ctx, "0x%08x", + ace->access_mask); + if (sddl_mask == NULL) { + goto failed; + } + } + + if (ace->type == SEC_ACE_TYPE_ACCESS_ALLOWED_OBJECT || + ace->type == SEC_ACE_TYPE_ACCESS_DENIED_OBJECT || + ace->type == SEC_ACE_TYPE_SYSTEM_AUDIT_OBJECT || + ace->type == SEC_ACE_TYPE_SYSTEM_ALARM_OBJECT) { + const struct security_ace_object *object = &ace->object.object; + + if (ace->object.object.flags & SEC_ACE_OBJECT_TYPE_PRESENT) { + sddl_object = GUID_buf_string( + &object->type.type, &object_buf); + } + + if (ace->object.object.flags & + SEC_ACE_INHERITED_OBJECT_TYPE_PRESENT) { + sddl_iobject = GUID_buf_string( + &object->inherited_type.inherited_type, + &iobject_buf); + } + } + + sddl_trustee = sddl_encode_sid(tmp_ctx, &ace->trustee, domain_sid); + if (sddl_trustee == NULL) { + goto failed; + } + + sddl = talloc_asprintf(mem_ctx, "%s;%s;%s;%s;%s;%s", + sddl_type, sddl_flags, sddl_mask, sddl_object, + sddl_iobject, sddl_trustee); + +failed: + talloc_free(tmp_ctx); + return sddl; +} + +/* + encode an ACL in SDDL format +*/ +static char *sddl_encode_acl(TALLOC_CTX *mem_ctx, const struct security_acl *acl, + uint32_t flags, const struct dom_sid *domain_sid) +{ + char *sddl; + uint32_t i; + + /* add any ACL flags */ + sddl = sddl_flags_to_string(mem_ctx, acl_flags, flags, false); + if (sddl == NULL) goto failed; + + /* now the ACEs, encoded in braces */ + for (i=0;i<acl->num_aces;i++) { + char *ace = sddl_encode_ace(sddl, &acl->aces[i], domain_sid); + if (ace == NULL) goto failed; + sddl = talloc_asprintf_append_buffer(sddl, "(%s)", ace); + if (sddl == NULL) goto failed; + talloc_free(ace); + } + + return sddl; + +failed: + talloc_free(sddl); + return NULL; +} + + +/* + encode a security descriptor to SDDL format +*/ +char *sddl_encode(TALLOC_CTX *mem_ctx, const struct security_descriptor *sd, + const struct dom_sid *domain_sid) +{ + char *sddl; + TALLOC_CTX *tmp_ctx; + + /* start with a blank string */ + sddl = talloc_strdup(mem_ctx, ""); + if (sddl == NULL) goto failed; + + tmp_ctx = talloc_new(mem_ctx); + + if (sd->owner_sid != NULL) { + char *sid = sddl_encode_sid(tmp_ctx, sd->owner_sid, domain_sid); + if (sid == NULL) goto failed; + sddl = talloc_asprintf_append_buffer(sddl, "O:%s", sid); + if (sddl == NULL) goto failed; + } + + if (sd->group_sid != NULL) { + char *sid = sddl_encode_sid(tmp_ctx, sd->group_sid, domain_sid); + if (sid == NULL) goto failed; + sddl = talloc_asprintf_append_buffer(sddl, "G:%s", sid); + if (sddl == NULL) goto failed; + } + + if ((sd->type & SEC_DESC_DACL_PRESENT) && sd->dacl != NULL) { + char *acl = sddl_encode_acl(tmp_ctx, sd->dacl, sd->type, domain_sid); + if (acl == NULL) goto failed; + sddl = talloc_asprintf_append_buffer(sddl, "D:%s", acl); + if (sddl == NULL) goto failed; + } + + if ((sd->type & SEC_DESC_SACL_PRESENT) && sd->sacl != NULL) { + char *acl = sddl_encode_acl(tmp_ctx, sd->sacl, sd->type>>1, domain_sid); + if (acl == NULL) goto failed; + sddl = talloc_asprintf_append_buffer(sddl, "S:%s", acl); + if (sddl == NULL) goto failed; + } + + talloc_free(tmp_ctx); + return sddl; + +failed: + talloc_free(sddl); + return NULL; +} + + |