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Revision 8ba29adf9a7cdff3c7283d5fc0dcf5e777d3b40f authored by Namhyung Kim on 08 June 2017, 07:31:06 UTC, committed by Arnaldo Carvalho de Melo on 08 June 2017, 18:39:13 UTC 
perf tools: Consolidate error path in __open_dso()
 
On failure, it should free the 'name', so clean up the error path using
goto.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Suggested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Cc: kernel-team@lge.com
Link: http://lkml.kernel.org/r/20170608073109.30699-7-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
1 parent 1d6b3c9
Raw File
sock_flags_kern.c 
#include <uapi/linux/bpf.h>
#include <linux/socket.h>
#include <linux/net.h>
#include <uapi/linux/in.h>
#include <uapi/linux/in6.h>
#include "bpf_helpers.h"

SEC("cgroup/sock1")
int bpf_prog1(struct bpf_sock *sk)
{
	char fmt[] = "socket: family %d type %d protocol %d\n";

	bpf_trace_printk(fmt, sizeof(fmt), sk->family, sk->type, sk->protocol);

	/* block PF_INET6, SOCK_RAW, IPPROTO_ICMPV6 sockets
	 * ie., make ping6 fail
	 */
	if (sk->family == PF_INET6 &&
	    sk->type == SOCK_RAW   &&
	    sk->protocol == IPPROTO_ICMPV6)
		return 0;

	return 1;
}

SEC("cgroup/sock2")
int bpf_prog2(struct bpf_sock *sk)
{
	char fmt[] = "socket: family %d type %d protocol %d\n";

	bpf_trace_printk(fmt, sizeof(fmt), sk->family, sk->type, sk->protocol);

	/* block PF_INET, SOCK_RAW, IPPROTO_ICMP sockets
	 * ie., make ping fail
	 */
	if (sk->family == PF_INET &&
	    sk->type == SOCK_RAW  &&
	    sk->protocol == IPPROTO_ICMP)
		return 0;

	return 1;
}

char _license[] SEC("license") = "GPL";
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