Module: wine Branch: master Commit: e11e8705eb9fcb7c2ec736cf2f7e5036decf22cd URL: https://source.winehq.org/git/wine.git/?a=commit;h=e11e8705eb9fcb7c2ec736cf2...
Author: Erich E. Hoover erich.e.hoover@gmail.com Date: Mon Apr 22 23:45:29 2019 +0200
server: Add default security descriptor ownership for processes.
Signed-off-by: Erich E. Hoover erich.e.hoover@gmail.com Signed-off-by: Vijay Kiran Kamuju infyquest@gmail.com Signed-off-by: Alexandre Julliard julliard@winehq.org
---
dlls/advapi32/tests/security.c | 35 +++++++++++++++++++++++++++++++++++ server/process.c | 26 +++++++++++++++++++++++++- server/security.h | 1 + server/token.c | 2 ++ 4 files changed, 63 insertions(+), 1 deletion(-)
diff --git a/dlls/advapi32/tests/security.c b/dlls/advapi32/tests/security.c index d9cae64..3097a64 100644 --- a/dlls/advapi32/tests/security.c +++ b/dlls/advapi32/tests/security.c @@ -4682,11 +4682,15 @@ static void test_acls(void)
static void test_GetSecurityInfo(void) { + char domain_users_ptr[sizeof(TOKEN_USER) + sizeof(SID) + sizeof(DWORD)*SID_MAX_SUB_AUTHORITIES]; char b[sizeof(TOKEN_USER) + sizeof(SID) + sizeof(DWORD)*SID_MAX_SUB_AUTHORITIES]; char admin_ptr[sizeof(SID)+sizeof(ULONG)*SID_MAX_SUB_AUTHORITIES], dacl[100]; + PSID domain_users_sid = (PSID) domain_users_ptr, domain_sid; + SID_IDENTIFIER_AUTHORITY sia = { SECURITY_NT_AUTHORITY }; DWORD sid_size = sizeof(admin_ptr), l = sizeof(b); PSID admin_sid = (PSID) admin_ptr, user_sid; char sd[SECURITY_DESCRIPTOR_MIN_LENGTH]; + BOOL owner_defaulted, group_defaulted; ACL_SIZE_INFORMATION acl_size; PSECURITY_DESCRIPTOR pSD; ACCESS_ALLOWED_ACE *ace; @@ -4813,6 +4817,37 @@ static void test_GetSecurityInfo(void) } LocalFree(pSD); CloseHandle(obj); + + /* Obtain the "domain users" SID from the user SID */ + if (!AllocateAndInitializeSid(&sia, 4, *GetSidSubAuthority(user_sid, 0), + *GetSidSubAuthority(user_sid, 1), + *GetSidSubAuthority(user_sid, 2), + *GetSidSubAuthority(user_sid, 3), 0, 0, 0, 0, &domain_sid)) + { + win_skip("Failed to get current domain SID\n"); + return; + } + sid_size = sizeof(domain_users_ptr); + pCreateWellKnownSid(WinAccountDomainUsersSid, domain_sid, domain_users_sid, &sid_size); + FreeSid(domain_sid); + + /* Test querying the ownership of a process */ + ret = pGetSecurityInfo(GetCurrentProcess(), SE_KERNEL_OBJECT, + OWNER_SECURITY_INFORMATION|GROUP_SECURITY_INFORMATION, + NULL, NULL, NULL, NULL, &pSD); + ok(!ret, "GetNamedSecurityInfo failed with error %d\n", ret); + + bret = GetSecurityDescriptorOwner(pSD, &owner, &owner_defaulted); + ok(bret, "GetSecurityDescriptorOwner failed with error %d\n", GetLastError()); + ok(owner != NULL, "owner should not be NULL\n"); + ok(EqualSid(owner, admin_sid) || EqualSid(owner, user_sid), + "Process owner SID != Administrators SID.\n"); + + bret = GetSecurityDescriptorGroup(pSD, &group, &group_defaulted); + ok(bret, "GetSecurityDescriptorGroup failed with error %d\n", GetLastError()); + ok(group != NULL, "group should not be NULL\n"); + ok(EqualSid(group, domain_users_sid), "Process group SID != Domain Users SID.\n"); + LocalFree(pSD); }
static void test_GetSidSubAuthority(void) diff --git a/server/process.c b/server/process.c index 4a1cebf..dc50779 100644 --- a/server/process.c +++ b/server/process.c @@ -63,6 +63,7 @@ static void process_dump( struct object *obj, int verbose ); static struct object_type *process_get_type( struct object *obj ); static int process_signaled( struct object *obj, struct wait_queue_entry *entry ); static unsigned int process_map_access( struct object *obj, unsigned int access ); +static struct security_descriptor *process_get_sd( struct object *obj ); static void process_poll_event( struct fd *fd, int event ); static struct list *process_get_kernel_obj_list( struct object *obj ); static void process_destroy( struct object *obj ); @@ -80,7 +81,7 @@ static const struct object_ops process_ops = no_signal, /* signal */ no_get_fd, /* get_fd */ process_map_access, /* map_access */ - default_get_sd, /* get_sd */ + process_get_sd, /* get_sd */ default_set_sd, /* set_sd */ no_lookup_name, /* lookup_name */ no_link_name, /* link_name */ @@ -669,6 +670,29 @@ static struct list *process_get_kernel_obj_list( struct object *obj ) return &process->kernel_object; }
+static struct security_descriptor *process_get_sd( struct object *obj ) +{ + static struct security_descriptor *process_default_sd; + + if (obj->sd) return obj->sd; + + if (!process_default_sd) + { + size_t users_sid_len = security_sid_len( security_domain_users_sid ); + size_t admins_sid_len = security_sid_len( security_builtin_admins_sid ); + + process_default_sd = mem_alloc( sizeof(*process_default_sd) + admins_sid_len + users_sid_len ); + process_default_sd->control = SE_DACL_PRESENT; + process_default_sd->owner_len = admins_sid_len; + process_default_sd->group_len = users_sid_len; + process_default_sd->sacl_len = 0; + process_default_sd->dacl_len = 0; + memcpy( process_default_sd + 1, security_builtin_admins_sid, admins_sid_len ); + memcpy( (char *)(process_default_sd + 1) + admins_sid_len, security_domain_users_sid, users_sid_len ); + } + return process_default_sd; +} + static void process_poll_event( struct fd *fd, int event ) { struct process *process = get_fd_user( fd ); diff --git a/server/security.h b/server/security.h index 873bbc6..606dbb2 100644 --- a/server/security.h +++ b/server/security.h @@ -47,6 +47,7 @@ extern const PSID security_local_user_sid; extern const PSID security_local_system_sid; extern const PSID security_builtin_users_sid; extern const PSID security_builtin_admins_sid; +extern const PSID security_domain_users_sid; extern const PSID security_high_label_sid;
diff --git a/server/token.c b/server/token.c index 5c35bcc..895809e 100644 --- a/server/token.c +++ b/server/token.c @@ -83,6 +83,7 @@ static const SID_N(5) local_user_sid = { SID_REVISION, 5, { SECURITY_NT_AUTHORIT static const SID_N(2) builtin_admins_sid = { SID_REVISION, 2, { SECURITY_NT_AUTHORITY }, { SECURITY_BUILTIN_DOMAIN_RID, DOMAIN_ALIAS_RID_ADMINS } }; static const SID_N(2) builtin_users_sid = { SID_REVISION, 2, { SECURITY_NT_AUTHORITY }, { SECURITY_BUILTIN_DOMAIN_RID, DOMAIN_ALIAS_RID_USERS } }; static const SID_N(3) builtin_logon_sid = { SID_REVISION, 3, { SECURITY_NT_AUTHORITY }, { SECURITY_LOGON_IDS_RID, 0, 0 } }; +static const SID_N(5) domain_users_sid = { SID_REVISION, 5, { SECURITY_NT_AUTHORITY }, { SECURITY_NT_NON_UNIQUE, 0, 0, 0, DOMAIN_GROUP_RID_USERS } };
const PSID security_world_sid = (PSID)&world_sid; static const PSID security_local_sid = (PSID)&local_sid; @@ -92,6 +93,7 @@ const PSID security_local_system_sid = (PSID)&local_system_sid; const PSID security_local_user_sid = (PSID)&local_user_sid; const PSID security_builtin_admins_sid = (PSID)&builtin_admins_sid; const PSID security_builtin_users_sid = (PSID)&builtin_users_sid; +const PSID security_domain_users_sid = (PSID)&domain_users_sid; const PSID security_high_label_sid = (PSID)&high_label_sid;
static luid_t prev_luid_value = { 1000, 0 };