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Driver: fortps: Refactor processes inheritance handling, Part 3

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Nodir Temirkhodjaev 2023-04-30 18:07:22 +03:00
parent f55273c5fe
commit b7632f4ad0
1 changed files with 30 additions and 26 deletions
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56
src/driver/fortps.c
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@ -28,10 +28,9 @@ typedef struct fort_psname
WCHAR data[1];
} FORT_PSNAME, *PFORT_PSNAME;
#define FORT_PSNODE_NAME_INHERIT_CHECKED 0x0001
#define FORT_PSNODE_NAME_INHERIT 0x0002
#define FORT_PSNODE_NAME_INHERITED 0x0004
#define FORT_PSNODE_NAME_CUSTOM 0x0008
#define FORT_PSNODE_NAME_INHERIT 0x0001
#define FORT_PSNODE_NAME_INHERITED 0x0002
#define FORT_PSNODE_NAME_CUSTOM 0x0004
/* Synchronize with tommy_hashdyn_node! */
typedef struct fort_psnode
@ -304,7 +303,7 @@ static PFORT_PSNAME fort_pstree_add_service_name(PFORT_PSTREE ps_tree, PCFORT_PS
return fort_pstree_create_service_name(ps_tree, &serviceName);
}
static void fort_pstree_proc_set_name(PFORT_PSNODE proc, PFORT_PSNAME ps_name)
static void fort_pstree_proc_set_service_name(PFORT_PSNODE proc, PFORT_PSNAME ps_name)
{
assert(proc->ps_name == NULL);
@ -382,25 +381,20 @@ static PFORT_PSNODE fort_pstree_find_proc(PFORT_PSTREE ps_tree, DWORD processId)
inline static void fort_pstree_check_proc_conf(
PFORT_PSTREE ps_tree, PFORT_CONF_REF conf_ref, PFORT_PSNODE proc, PCUNICODE_STRING path)
{
if ((proc->flags & FORT_PSNODE_NAME_INHERIT_CHECKED) != 0)
return;
proc->flags |= FORT_PSNODE_NAME_INHERIT_CHECKED;
const BOOL is_ps_name = (proc->ps_name != NULL);
const PVOID path_buf = is_ps_name ? proc->ps_name->data : path->Buffer;
const UINT16 path_len = is_ps_name ? proc->ps_name->size : path->Length;
const BOOL has_ps_name = (proc->ps_name != NULL);
const PVOID path_buf = has_ps_name ? proc->ps_name->data : path->Buffer;
const UINT16 path_len = has_ps_name ? proc->ps_name->size : path->Length;
const PFORT_CONF conf = &conf_ref->conf;
const FORT_APP_FLAGS app_flags = conf->flags.group_apply_child
? fort_conf_app_find(conf, path_buf, path_len, fort_conf_exe_find)
: fort_conf_exe_find(conf, path_buf, path_len);
? fort_conf_app_find(conf, path_buf, path_len, fort_conf_exe_find, conf_ref)
: fort_conf_exe_find(conf, conf_ref, path_buf, path_len);
if (!app_flags.apply_child)
return;
if (!is_ps_name) {
if (!has_ps_name) {
PFORT_PSNAME ps_name = fort_pstree_name_new(ps_tree, path_len);
if (ps_name == NULL)
return;
@ -413,10 +407,18 @@ inline static void fort_pstree_check_proc_conf(
proc->flags |= FORT_PSNODE_NAME_INHERIT;
}
inline static void fort_pstree_check_proc_inherited(PFORT_PSNODE proc, PFORT_PSNODE parent)
inline static BOOL fort_pstree_check_proc_inherited(
PFORT_PSTREE ps_tree, PFORT_PSNODE proc, DWORD parentProcessId)
{
if (proc->ps_name != NULL)
return FALSE;
PFORT_PSNODE parent = fort_pstree_find_proc(ps_tree, parentProcessId);
if (parent == NULL)
return FALSE;
if ((parent->flags & (FORT_PSNODE_NAME_INHERIT | FORT_PSNODE_NAME_INHERITED)) == 0)
return;
return FALSE;
PFORT_PSNAME ps_name = parent->ps_name;
assert(ps_name != NULL);
@ -424,7 +426,9 @@ inline static void fort_pstree_check_proc_inherited(PFORT_PSNODE proc, PFORT_PSN
++ps_name->refcount;
proc->ps_name = ps_name;
proc->flags |= FORT_PSNODE_NAME_INHERIT_CHECKED | FORT_PSNODE_NAME_INHERITED;
proc->flags |= FORT_PSNODE_NAME_INHERITED;
return TRUE;
}
static void fort_pstree_check_proc_inheritance(
@ -439,13 +443,10 @@ static void fort_pstree_check_proc_inheritance(
if (conf_ref == NULL)
return;
PFORT_PSNODE parent = fort_pstree_find_proc(ps_tree, psi->parentProcessId);
if (parent != NULL) {
fort_pstree_check_proc_inherited(proc, parent);
if (!fort_pstree_check_proc_inherited(ps_tree, proc, psi->parentProcessId)) {
fort_pstree_check_proc_conf(ps_tree, conf_ref, proc, psi->path);
}
fort_pstree_check_proc_conf(ps_tree, conf_ref, proc, psi->path);
fort_conf_ref_put(device_conf, conf_ref);
}
@ -462,7 +463,7 @@ static void fort_pstree_handle_new_proc(PFORT_PSTREE ps_tree, PCFORT_PSINFO_HASH
proc->process_id = psi->processId;
proc->flags = 0;
fort_pstree_proc_set_name(proc, ps_name);
fort_pstree_proc_set_service_name(proc, ps_name);
fort_pstree_check_proc_inheritance(ps_tree, psi, proc);
}
@ -614,6 +615,9 @@ inline static void fort_pstree_enum_process(PFORT_PSTREE ps_tree, PSYSTEM_PROCES
.pid_hash = pid_hash,
.processId = processId,
.parentProcessId = parentProcessId,
.path = NULL,
.commandLine = NULL,
};
KLOCK_QUEUE_HANDLE lock_queue;
@ -729,7 +733,7 @@ static int fort_pstree_update_service(
if (proc != NULL && proc->ps_name == NULL) {
PFORT_PSNAME ps_name = fort_pstree_create_service_name(ps_tree, &serviceName);
fort_pstree_proc_set_name(proc, ps_name);
fort_pstree_proc_set_service_name(proc, ps_name);
}
return FORT_SERVICE_INFO_NAME_OFF + FORT_CONF_STR_DATA_SIZE(serviceName.Length);