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feat(ebpf): optimize sendmsg/recvmsg kprobes #3766

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merged 1 commit into from
Dec 18, 2023
Merged

feat(ebpf): optimize sendmsg/recvmsg kprobes #3766

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26 changes: 16 additions & 10 deletions pkg/ebpf/c/tracee.bpf.c
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Original file line number Diff line number Diff line change
Expand Up @@ -5373,12 +5373,6 @@ int BPF_KPROBE(trace_security_sk_clone)

statfunc u32 update_net_inodemap(struct socket *sock, event_data_t *event)
{
if (!is_family_supported(sock))
return 0;

if (!is_socket_supported(sock))
return 0;

struct file *sock_file = BPF_CORE_READ(sock, file);
if (!sock_file)
return 0;
Expand All @@ -5399,30 +5393,42 @@ statfunc u32 update_net_inodemap(struct socket *sock, event_data_t *event)
SEC("kprobe/security_socket_recvmsg")
int BPF_KPROBE(trace_security_socket_recvmsg)
{
struct socket *sock = (void *) PT_REGS_PARM1(ctx);
if (sock == NULL)
return 0;
if (!is_family_supported(sock))
return 0;
if (!is_socket_supported(sock))
return 0;

program_data_t p = {};
if (!init_program_data(&p, ctx))
return 0;

if (!should_trace(&p))
return 0;

struct socket *sock = (void *) PT_REGS_PARM1(ctx);

return update_net_inodemap(sock, p.event);
}

SEC("kprobe/security_socket_sendmsg")
int BPF_KPROBE(trace_security_socket_sendmsg)
{
struct socket *sock = (void *) PT_REGS_PARM1(ctx);
if (sock == NULL)
return 0;
if (!is_family_supported(sock))
return 0;
if (!is_socket_supported(sock))
return 0;

program_data_t p = {};
if (!init_program_data(&p, ctx))
return 0;

if (!should_trace(&p))
return 0;

struct socket *sock = (void *) PT_REGS_PARM1(ctx);

return update_net_inodemap(sock, p.event);
}

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