samples/bpf: adjust rlimit RLIMIT_MEMLOCK for xdp_redirect
Default rlimit RLIMIT_MEMLOCK is 64KB, causes bpf map failure. e.g. [root@labbpf]# ./xdp_redirect $(</sys/class/net/eth2/ifindex) \ > $(</sys/class/net/eth3/ifindex) failed to create a map: 1 Operation not permitted The failure is seen when executing xdp_redirect while xdp_monitor is already runnig. Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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@ -20,6 +20,7 @@
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#include <string.h>
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#include <unistd.h>
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#include <libgen.h>
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#include <sys/resource.h>
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#include "bpf_load.h"
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#include "bpf_util.h"
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@ -75,6 +76,7 @@ static void usage(const char *prog)
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int main(int argc, char **argv)
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{
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struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
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const char *optstr = "SN";
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char filename[256];
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int ret, opt, key = 0;
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@ -98,6 +100,11 @@ int main(int argc, char **argv)
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return 1;
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}
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if (setrlimit(RLIMIT_MEMLOCK, &r)) {
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perror("setrlimit(RLIMIT_MEMLOCK)");
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return 1;
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}
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ifindex_in = strtoul(argv[optind], NULL, 0);
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ifindex_out = strtoul(argv[optind + 1], NULL, 0);
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printf("input: %d output: %d\n", ifindex_in, ifindex_out);
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