xnu-4903.221.2.tar.gz

[apple/xnu.git] / bsd / kern / kern_proc.c

diff --git a/bsd/kern/kern_proc.c b/bsd/kern/kern_proc.c
index f25390cb4955603dee16b057aefcf616a0db4d0d..3107ae6d058d41d3128eeb029936b180b6651e18 100644 (file)
--- a/bsd/kern/kern_proc.c
+++ b/bsd/kern/kern_proc.c
@@ -162,10 +162,6 @@ extern struct tty cons;
 
 extern int cs_debug;
 
-#if DEVELOPMENT || DEBUG
-extern int cs_enforcement_enable;
-#endif
-
 #if DEBUG
 #define __PROC_INTERNAL_DEBUG 1
 #endif
@@ -188,14 +184,10 @@ typedef uint64_t unaligned_u64 __attribute__((aligned(1)));
 
 static void orphanpg(struct pgrp * pg);
 void proc_name_kdp(task_t t, char * buf, int size);
-void * proc_get_uthread_uu_threadlist(void * uthread_v);
 int proc_threadname_kdp(void * uth, char * buf, size_t size);
 void proc_starttime_kdp(void * p, unaligned_u64 *tv_sec, unaligned_u64 *tv_usec, unaligned_u64 *abstime);
 char * proc_name_address(void * p);
 
-/* TODO: make a header that's exported and usable in osfmk */
-char* proc_best_name(proc_t p);
-
 static void  pgrp_add(struct pgrp * pgrp, proc_t parent, proc_t child);
 static void pgrp_remove(proc_t p);
 static void pgrp_replace(proc_t p, struct pgrp *pgrp);
@@ -212,9 +204,6 @@ struct fixjob_iterargs {
 
 int fixjob_callback(proc_t, void *);
 
-uint64_t get_current_unique_pid(void);
-
-
 uint64_t
 get_current_unique_pid(void)
 {
@@ -1010,6 +999,17 @@ proc_exiting(proc_t p)
        return(retval? 1: 0);
 }
 
+int
+proc_in_teardown(proc_t p)
+{
+       int retval = 0;
+
+       if (p)
+               retval = p->p_lflag & P_LPEXIT;
+       return(retval? 1: 0);
+
+}
+
 int
 proc_forcequota(proc_t p)
 {
@@ -1079,6 +1079,13 @@ proc_is64bit(proc_t p)
        return(IS_64BIT_PROCESS(p));
 }
 
+int
+proc_is64bit_data(proc_t p)
+{
+       assert(p->task);
+       return (int)task_get_64bit_data(p->task);
+}
+
 int
 proc_pidversion(proc_t p)
 {
@@ -1950,6 +1957,7 @@ csops_internal(pid_t pid, int ops, user_addr_t uaddr, user_size_t usersize, user
                case CS_OPS_ENTITLEMENTS_BLOB:
                case CS_OPS_IDENTITY:
                case CS_OPS_BLOB:
+               case CS_OPS_TEAMID:
                        break;  /* not restricted to root */
                default:
                        if (forself == 0 && kauth_cred_issuser(kauth_cred_get()) != TRUE)
@@ -2000,12 +2008,16 @@ csops_internal(pid_t pid, int ops, user_addr_t uaddr, user_size_t usersize, user
 
                        proc_lock(pt);
                        retflags = pt->p_csflags;
-                       if (cs_enforcement(pt))
+                       if (cs_process_enforcement(pt))
                                retflags |= CS_ENFORCEMENT;
                        if (csproc_get_platform_binary(pt))
                                retflags |= CS_PLATFORM_BINARY;
                        if (csproc_get_platform_path(pt))
                                retflags |= CS_PLATFORM_PATH;
+                       //Don't return CS_REQUIRE_LV if we turned it on with CS_FORCED_LV but still report CS_FORCED_LV
+                       if ((pt->p_csflags & CS_FORCED_LV) == CS_FORCED_LV) {
+                               retflags &= (~CS_REQUIRE_LV);
+                       }
                        proc_unlock(pt);
 
                        if (uaddr != USER_ADDR_NULL)
@@ -2154,7 +2166,8 @@ csops_internal(pid_t pid, int ops, user_addr_t uaddr, user_size_t usersize, user
                        error = csops_copy_token(start, length, usize, uaddr);
                        break;
                }
-               case CS_OPS_IDENTITY: {
+               case CS_OPS_IDENTITY:
+               case CS_OPS_TEAMID: {
                        const char *identity;
                        uint8_t fakeheader[8];
                        uint32_t idlen;
@@ -2178,7 +2191,7 @@ csops_internal(pid_t pid, int ops, user_addr_t uaddr, user_size_t usersize, user
                                break;
                        }
 
-                       identity = cs_identity_get(pt);
+                       identity = ops == CS_OPS_TEAMID ? csproc_get_teamid(pt) : cs_identity_get(pt);
                        proc_unlock(pt);
                        if (identity == NULL) {
                                error = ENOENT;
@@ -2209,7 +2222,7 @@ csops_internal(pid_t pid, int ops, user_addr_t uaddr, user_size_t usersize, user
 
                case CS_OPS_CLEARPLATFORM:
 #if DEVELOPMENT || DEBUG
-                       if (cs_enforcement_enable) {
+                       if (cs_process_global_enforcement()) {
                                error = ENOTSUP;
                                break;
                        }
@@ -2248,7 +2261,7 @@ proc_iterate(
        proc_iterate_fn_t filterfn,
        void *filterarg)
 {
-       pid_t *pid_list;
+       pid_t *pid_list = NULL;
        vm_size_t pid_list_size = 0;
        vm_size_t pid_list_size_needed = 0;
        int pid_count = 0;
@@ -2260,7 +2273,7 @@ proc_iterate(
        for (;;) {
                proc_list_lock();
 
-               pid_count_available = nprocs + 1; //kernel_task is not counted in nprocs
+               pid_count_available = nprocs + 1 /* kernel_task not counted in nprocs */;
                assert(pid_count_available > 0);
 
                pid_list_size_needed = pid_count_available * sizeof(pid_t);
@@ -2278,6 +2291,7 @@ proc_iterate(
                }
                pid_list_size = pid_list_size_needed;
        }
+       assert(pid_list != NULL);
 
        /* filter pids into pid_list */
 
@@ -3229,7 +3243,7 @@ extern boolean_t kill_on_no_paging_space;
 #endif /* DEVELOPMENT || DEBUG */
 
 #define MB_SIZE        (1024 * 1024ULL)
-boolean_t      memorystatus_kill_on_VM_thrashing(boolean_t);
+boolean_t      memorystatus_kill_on_VM_compressor_space_shortage(boolean_t);
 
 extern int32_t max_kill_priority;
 extern int     memorystatus_get_proccnt_upto_priority(int32_t max_bucket_index);
@@ -3305,7 +3319,7 @@ no_paging_space_action()
        if (memorystatus_get_proccnt_upto_priority(max_kill_priority) > 0) {
 
                last_no_space_action = now;
-               memorystatus_kill_on_VM_thrashing(TRUE /* async */);
+               memorystatus_kill_on_VM_compressor_space_shortage(TRUE /* async */);
                return (1);
        }
 
@@ -3432,11 +3446,17 @@ proc_chrooted(proc_t p)
        return retval;
 }
 
-void *
-proc_get_uthread_uu_threadlist(void * uthread_v)
+boolean_t
+proc_send_synchronous_EXC_RESOURCE(proc_t p)
 {
-       uthread_t uth = (uthread_t)uthread_v;
-       return (uth != NULL) ? uth->uu_threadlist : NULL;
+       if (p == PROC_NULL)
+               return FALSE;
+
+       /* Send sync EXC_RESOURCE if the process is traced */
+       if (ISSET(p->p_lflag, P_LTRACED)) {
+               return TRUE;
+       }
+       return FALSE;
 }
 
 #ifdef CONFIG_32BIT_TELEMETRY