1 #include "config.h" 2 #include <stdio.h> 3 #include <stdlib.h> 4 #include <cap-ng.h> 5 #include <pthread.h> 6 7 //#define DEBUG 1 8 9 pthread_t thread1, thread2; 10 thread1_main(void * arg)11void *thread1_main(void *arg) 12 { 13 capng_fill(CAPNG_SELECT_BOTH); 14 #ifdef DEBUG 15 printf("thread1 filled capabilities\n"); 16 #endif 17 sleep(2); 18 if (capng_have_capabilities(CAPNG_SELECT_CAPS) < CAPNG_FULL) { 19 printf("Capabilities missing when there should be some\n"); 20 exit(1); 21 } 22 #ifdef DEBUG 23 printf("SUCCESS: Full capabilities reported\n"); 24 #endif 25 return NULL; 26 } 27 thread2_main(void * arg)28void *thread2_main(void *arg) 29 { 30 sleep(1); 31 #ifdef DEBUG 32 printf("thread2 getting capabilities\n"); 33 #endif 34 capng_get_caps_process(); 35 if (capng_have_capabilities(CAPNG_SELECT_CAPS) != CAPNG_NONE) { 36 printf("Detected capabilities when there should not be any\n"); 37 exit(1); 38 } 39 capng_clear(CAPNG_SELECT_BOTH); 40 #ifdef DEBUG 41 printf("SUCCESS: No capabilities reported\n"); 42 #endif 43 return NULL; 44 } 45 main(void)46int main(void) 47 { 48 printf("Testing thread separation of capabilities\n"); 49 pthread_create(&thread1, NULL, thread1_main, NULL); 50 pthread_create(&thread2, NULL, thread2_main, NULL); 51 sleep(3); 52 return 0; 53 } 54 55