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eal: fix core number validation

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When incorrect core value or range provided,
as part of -l command line option, a crash occurs.

Added valid range checks to fix the crash.

Added ut check for negative core values.
Added unit test case for invalid core number range.

Fixes: d888cb8b96 ("eal: add core list input format")
Cc: stable@dpdk.org

Signed-off-by: Hari Kumar Vemula <hari.kumarx.vemula@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
This commit is contained in:
Hari Kumar Vemula 2019-01-17 12:13:12 +00:00 committed by Thomas Monjalon
parent 05853e1784
commit b38693b612
2 changed files with 45 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
lib/librte_eal/common/eal_common_options.c
View File

@ -600,7 +600,9 @@ eal_parse_corelist(const char *corelist)
if (*corelist == '\0')
return -1;
errno = 0;
idx = strtoul(corelist, &end, 10);
idx = strtol(corelist, &end, 10);
if (idx < 0 || idx >= (int)cfg->lcore_count)
return -1;
if (errno || end == NULL)
return -1;
while (isblank(*end))
@ -1111,6 +1113,7 @@ eal_parse_common_option(int opt, const char *optarg,
{
static int b_used;
static int w_used;
struct rte_config *cfg = rte_eal_get_configuration();
switch (opt) {
/* blacklist */
@ -1153,7 +1156,9 @@ eal_parse_common_option(int opt, const char *optarg,
/* corelist */
case 'l':
if (eal_parse_corelist(optarg) < 0) {
RTE_LOG(ERR, EAL, "invalid core list\n");
RTE_LOG(ERR, EAL,
"invalid core list, please check core numbers are in [0, %u] range\n",
cfg->lcore_count-1);
return -1;
}

61
test/test/test_eal_flags.c
View File

@ -18,6 +18,7 @@
#include <sys/file.h>
#include <limits.h>
#include <rte_per_lcore.h>
#include <rte_debug.h>
#include <rte_string_fns.h>
@ -477,40 +478,50 @@ test_missing_c_flag(void)
"-n", "3", "-l", "1," };
const char *argv10[] = { prgname, prefix, mp_flag,
"-n", "3", "-l", "1#2" };
/* core number is negative value */
const char * const argv11[] = { prgname, prefix, mp_flag,
"-n", "3", "-l", "-5" };
const char * const argv12[] = { prgname, prefix, mp_flag,
"-n", "3", "-l", "-5-7" };
/* core number is maximum value */
const char * const argv13[] = { prgname, prefix, mp_flag,
"-n", "3", "-l", RTE_STR(RTE_MAX_LCORE) };
const char * const argv14[] = { prgname, prefix, mp_flag,
"-n", "3", "-l", "1-"RTE_STR(RTE_MAX_LCORE) };
/* sanity check test - valid corelist value */
const char *argv11[] = { prgname, prefix, mp_flag,
const char * const argv15[] = { prgname, prefix, mp_flag,
"-n", "3", "-l", "1-2,3" };
/* --lcores flag but no lcores value */
const char *argv12[] = { prgname, prefix, mp_flag,
const char * const argv16[] = { prgname, prefix, mp_flag,
"-n", "3", "--lcores" };
const char *argv13[] = { prgname, prefix, mp_flag,
const char * const argv17[] = { prgname, prefix, mp_flag,
"-n", "3", "--lcores", " " };
/* bad lcores value */
const char *argv14[] = { prgname, prefix, mp_flag,
const char * const argv18[] = { prgname, prefix, mp_flag,
"-n", "3", "--lcores", "1-3-5" };
const char *argv15[] = { prgname, prefix, mp_flag,
const char * const argv19[] = { prgname, prefix, mp_flag,
"-n", "3", "--lcores", "0-1,,2" };
const char *argv16[] = { prgname, prefix, mp_flag,
const char * const argv20[] = { prgname, prefix, mp_flag,
"-n", "3", "--lcores", "0-,1" };
const char *argv17[] = { prgname, prefix, mp_flag,
const char * const argv21[] = { prgname, prefix, mp_flag,
"-n", "3", "--lcores", "(0-,2-4)" };
const char *argv18[] = { prgname, prefix, mp_flag,
const char * const argv22[] = { prgname, prefix, mp_flag,
"-n", "3", "--lcores", "(-1,2)" };
const char *argv19[] = { prgname, prefix, mp_flag,
const char * const argv23[] = { prgname, prefix, mp_flag,
"-n", "3", "--lcores", "(2-4)@(2-4-6)" };
const char *argv20[] = { prgname, prefix, mp_flag,
const char * const argv24[] = { prgname, prefix, mp_flag,
"-n", "3", "--lcores", "(a,2)" };
const char *argv21[] = { prgname, prefix, mp_flag,
const char * const argv25[] = { prgname, prefix, mp_flag,
"-n", "3", "--lcores", "1-3@(1,3)" };
const char *argv22[] = { prgname, prefix, mp_flag,
const char * const argv26[] = { prgname, prefix, mp_flag,
"-n", "3", "--lcores", "3@((1,3)" };
const char *argv23[] = { prgname, prefix, mp_flag,
const char * const argv27[] = { prgname, prefix, mp_flag,
"-n", "3", "--lcores", "(4-7)=(1,3)" };
const char *argv24[] = { prgname, prefix, mp_flag,
const char * const argv28[] = { prgname, prefix, mp_flag,
"-n", "3", "--lcores", "[4-7]@(1,3)" };
/* sanity check of tests - valid lcores value */
const char *argv25[] = { prgname, prefix, mp_flag,
const char * const argv29[] = { prgname, prefix, mp_flag,
"-n", "3", "--lcores",
"0-1,2@(5-7),(3-5)@(0,2),(0,6),7"};
@ -538,31 +549,35 @@ test_missing_c_flag(void)
|| launch_proc(argv7) == 0
|| launch_proc(argv8) == 0
|| launch_proc(argv9) == 0
|| launch_proc(argv10) == 0) {
|| launch_proc(argv10) == 0
|| launch_proc(argv11) == 0
|| launch_proc(argv12) == 0
|| launch_proc(argv13) == 0
|| launch_proc(argv14) == 0) {
printf("Error - "
"process ran without error with invalid -l flag\n");
return -1;
}
if (launch_proc(argv11) != 0) {
if (launch_proc(argv15) != 0) {
printf("Error - "
"process did not run ok with valid corelist value\n");
return -1;
}
/* start --lcores tests */
if (launch_proc(argv12) == 0 || launch_proc(argv13) == 0 ||
launch_proc(argv14) == 0 || launch_proc(argv15) == 0 ||
launch_proc(argv16) == 0 || launch_proc(argv17) == 0 ||
if (launch_proc(argv16) == 0 || launch_proc(argv17) == 0 ||
launch_proc(argv18) == 0 || launch_proc(argv19) == 0 ||
launch_proc(argv20) == 0 || launch_proc(argv21) == 0 ||
launch_proc(argv21) == 0 || launch_proc(argv22) == 0 ||
launch_proc(argv23) == 0 || launch_proc(argv24) == 0) {
launch_proc(argv22) == 0 || launch_proc(argv23) == 0 ||
launch_proc(argv24) == 0 || launch_proc(argv25) == 0 ||
launch_proc(argv26) == 0 || launch_proc(argv27) == 0 ||
launch_proc(argv28) == 0) {
printf("Error - "
"process ran without error with invalid --lcore flag\n");
return -1;
}
if (launch_proc(argv25) != 0) {
if (launch_proc(argv29) != 0) {
printf("Error - "
"process did not run ok with valid corelist value\n");
return -1;