diff options
Diffstat (limited to 'tests')
-rw-r--r-- | tests/bugs/bug-1058663.c | 111 | ||||
-rw-r--r-- | tests/bugs/bug-1058663.t | 29 |
2 files changed, 140 insertions, 0 deletions
diff --git a/tests/bugs/bug-1058663.c b/tests/bugs/bug-1058663.c new file mode 100644 index 00000000000..631afecce1f --- /dev/null +++ b/tests/bugs/bug-1058663.c @@ -0,0 +1,111 @@ +#include <stdlib.h> +#include <stdio.h> +#include <stdint.h> +#include <fcntl.h> +#include <sys/stat.h> +#include <sys/mman.h> +#include <signal.h> + +#define FILE_SIZE 1048576 + +/* number of tests to run */ +#define RUN_LOOP 1000 + +/* number of SIGBUS before exiting */ +#define MAX_SIGBUS 1 +static int expect_sigbus = 0; +static int sigbus_received = 0; + +/* test for truncate()/seek()/write()/mmap() + * There should ne no SIGBUS triggered. + */ +void seek_write(char *filename) +{ + int fd; + uint8_t* map; + int i; + + fd = open(filename, O_RDWR|O_CREAT|O_TRUNC, 0600); + lseek(fd, FILE_SIZE - 1, SEEK_SET); + write(fd, "\xff", 1); + + map = mmap(NULL, FILE_SIZE, PROT_READ, MAP_PRIVATE, fd, 0); + for (i = 0; i < (FILE_SIZE - 1); i++) { + if (map[i] != 0) /* should never be true */ + abort(); + } + munmap(map, FILE_SIZE); + + close(fd); +} + +int read_after_eof(char *filename) +{ + int ret = 0; + int fd; + char* data; + uint8_t* map; + + fd = open(filename, O_RDWR|O_CREAT|O_TRUNC, 0600); + lseek(fd, FILE_SIZE - 1, SEEK_SET); + write(fd, "\xff", 1); + + /* trigger verify that reading after EOF fails */ + ret = read(fd, data, FILE_SIZE / 2); + if (ret != 0) + return 1; + + /* map an area of 1 byte after FILE_SIZE */ + map = mmap(NULL, 1, PROT_READ, MAP_PRIVATE, fd, FILE_SIZE); + /* map[0] is an access after EOF, it should trigger SIGBUS */ + if (map[0] != 0) + /* it is expected that we exit before we get here */ + if (!sigbus_received) + return 1; + munmap(map, FILE_SIZE); + + close(fd); + + return ret; +} + +/* signal handler for SIGBUS */ +void catch_sigbus(int signum) +{ + switch (signum) { + case SIGBUS: + sigbus_received++; + if (!expect_sigbus) + exit(EXIT_FAILURE); + if (sigbus_received >= MAX_SIGBUS) + exit(EXIT_SUCCESS); + break; + default: + printf("Unexpected signal received: %d\n", signum); + } +} + +int main(int argc, char** argv) +{ + int i = 0; + + if (argc == 1) { + printf("Usage: %s <filename>\n", argv[0]); + return EXIT_FAILURE; + } + + signal(SIGBUS, catch_sigbus); + + /* the next test should not trigger SIGBUS */ + expect_sigbus = 0; + for (i = 0; i < RUN_LOOP; i++) { + seek_write(argv[1]); + } + + /* the next test should trigger SIGBUS */ + expect_sigbus = 1; + if (read_after_eof(argv[1])) + return EXIT_FAILURE; + + return EXIT_SUCCESS; +} diff --git a/tests/bugs/bug-1058663.t b/tests/bugs/bug-1058663.t new file mode 100644 index 00000000000..5ca348e773c --- /dev/null +++ b/tests/bugs/bug-1058663.t @@ -0,0 +1,29 @@ +#!/bin/bash + +. $(dirname $0)/../include.rc +. $(dirname $0)/../volume.rc + +cleanup; + +## Start and create a volume +TEST glusterd; +TEST pidof glusterd; +TEST $CLI volume info; + +TEST $CLI volume create $V0 $H0:$B0/$V0; +TEST $CLI volume start $V0; + +TEST glusterfs --entry-timeout=0 --attribute-timeout=0 -s $H0 --volfile-id $V0 $M0 + +# compile the test program and run it +gcc $(dirname $0)/bug-1058663.c -o $(dirname $0)/bug-1058663; +TEST $(dirname $0)/bug-1058663 $M0/bug-1058663.bin; +rm -f $(dirname $0)/M0/bug-1058663.bin; + +TEST umount $M0; + +TEST $CLI volume stop $V0; +TEST $CLI volume delete $V0; + +cleanup; + |