tools/perf/trace/beauty/sockaddr.c

   1 // SPDX-License-Identifier: LGPL-2.1
   2 // Copyright (C) 2018, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
   3
   4 #include "trace/beauty/beauty.h"
   5 #include <sys/socket.h>
   6 #include <sys/types.h>
   7 #include <sys/un.h>
   8 #include <arpa/inet.h>
   9
  10 #include "trace/beauty/generated/socket_arrays.c"
  11 DEFINE_STRARRAY(socket_families, "PF_");
  12
  13 static size_t af_inet__scnprintf(struct sockaddr *sa, char *bf, size_t size)
  14 {
  15         struct sockaddr_in *sin = (struct sockaddr_in *)sa;
  16         char tmp[16];
  17         return scnprintf(bf, size, ", port: %d, addr: %s", ntohs(sin->sin_port),
  18                          inet_ntop(sin->sin_family, &sin->sin_addr, tmp, sizeof(tmp)));
  19 }
  20
  21 static size_t af_inet6__scnprintf(struct sockaddr *sa, char *bf, size_t size)
  22 {
  23         struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sa;
  24         u32 flowinfo = ntohl(sin6->sin6_flowinfo);
  25         char tmp[512];
  26         size_t printed = scnprintf(bf, size, ", port: %d, addr: %s", ntohs(sin6->sin6_port),
  27                                    inet_ntop(sin6->sin6_family, &sin6->sin6_addr, tmp, sizeof(tmp)));
  28         if (flowinfo != 0)
  29                 printed += scnprintf(bf + printed, size - printed, ", flowinfo: %lu", flowinfo);
  30         if (sin6->sin6_scope_id != 0)
  31                 printed += scnprintf(bf + printed, size - printed, ", scope_id: %lu", sin6->sin6_scope_id);
  32
  33         return printed;
  34 }
  35
  36 static size_t af_local__scnprintf(struct sockaddr *sa, char *bf, size_t size)
  37 {
  38         struct sockaddr_un *sun = (struct sockaddr_un *)sa;
  39         return scnprintf(bf, size, ", path: %s", sun->sun_path);
  40 }
  41
  42 static size_t (*af_scnprintfs[])(struct sockaddr *sa, char *bf, size_t size) = {
  43         [AF_LOCAL] = af_local__scnprintf,
  44         [AF_INET]  = af_inet__scnprintf,
  45         [AF_INET6] = af_inet6__scnprintf,
  46 };
  47
  48 static size_t syscall_arg__scnprintf_augmented_sockaddr(struct syscall_arg *arg, char *bf, size_t size)
  49 {
  50         struct sockaddr *sa = (struct sockaddr *)arg->augmented.args;
  51         char family[32];
  52         size_t printed;
  53
  54         strarray__scnprintf(&strarray__socket_families, family, sizeof(family), "%d", arg->show_string_prefix, sa->sa_family);
  55         printed = scnprintf(bf, size, "{ .family: %s", family);
  56
  57         if (sa->sa_family < ARRAY_SIZE(af_scnprintfs) && af_scnprintfs[sa->sa_family])
  58                 printed += af_scnprintfs[sa->sa_family](sa, bf + printed, size - printed);
  59
  60         return printed + scnprintf(bf + printed, size - printed, " }");
  61 }
  62
  63 size_t syscall_arg__scnprintf_sockaddr(char *bf, size_t size, struct syscall_arg *arg)
  64 {
  65         if (arg->augmented.args)
  66                 return syscall_arg__scnprintf_augmented_sockaddr(arg, bf, size);
  67
  68         return scnprintf(bf, size, "%#lx", arg->val);
  69 }