root/tools/perf/trace/beauty/sockaddr.c

DEFINITIONS

1. af_inet__scnprintf
2. af_inet6__scnprintf
3. af_local__scnprintf
4. syscall_arg__scnprintf_augmented_sockaddr
5. syscall_arg__scnprintf_sockaddr

   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 static const char *socket_families[] = {
  11         "UNSPEC", "LOCAL", "INET", "AX25", "IPX", "APPLETALK", "NETROM",
  12         "BRIDGE", "ATMPVC", "X25", "INET6", "ROSE", "DECnet", "NETBEUI",
  13         "SECURITY", "KEY", "NETLINK", "PACKET", "ASH", "ECONET", "ATMSVC",
  14         "RDS", "SNA", "IRDA", "PPPOX", "WANPIPE", "LLC", "IB", "CAN", "TIPC",
  15         "BLUETOOTH", "IUCV", "RXRPC", "ISDN", "PHONET", "IEEE802154", "CAIF",
  16         "ALG", "NFC", "VSOCK",
  17 };
  18 DEFINE_STRARRAY(socket_families, "PF_");
  19 
  20 static size_t af_inet__scnprintf(struct sockaddr *sa, char *bf, size_t size)
  21 {
  22         struct sockaddr_in *sin = (struct sockaddr_in *)sa;
  23         char tmp[16];
  24         return scnprintf(bf, size, ", port: %d, addr: %s", ntohs(sin->sin_port),
  25                          inet_ntop(sin->sin_family, &sin->sin_addr, tmp, sizeof(tmp)));
  26 }
  27 
  28 static size_t af_inet6__scnprintf(struct sockaddr *sa, char *bf, size_t size)
  29 {
  30         struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sa;
  31         u32 flowinfo = ntohl(sin6->sin6_flowinfo);
  32         char tmp[512];
  33         size_t printed = scnprintf(bf, size, ", port: %d, addr: %s", ntohs(sin6->sin6_port),
  34                                    inet_ntop(sin6->sin6_family, &sin6->sin6_addr, tmp, sizeof(tmp)));
  35         if (flowinfo != 0)
  36                 printed += scnprintf(bf + printed, size - printed, ", flowinfo: %lu", flowinfo);
  37         if (sin6->sin6_scope_id != 0)
  38                 printed += scnprintf(bf + printed, size - printed, ", scope_id: %lu", sin6->sin6_scope_id);
  39 
  40         return printed;
  41 }
  42 
  43 static size_t af_local__scnprintf(struct sockaddr *sa, char *bf, size_t size)
  44 {
  45         struct sockaddr_un *sun = (struct sockaddr_un *)sa;
  46         return scnprintf(bf, size, ", path: %s", sun->sun_path);
  47 }
  48 
  49 static size_t (*af_scnprintfs[])(struct sockaddr *sa, char *bf, size_t size) = {
  50         [AF_LOCAL] = af_local__scnprintf,
  51         [AF_INET]  = af_inet__scnprintf,
  52         [AF_INET6] = af_inet6__scnprintf,
  53 };
  54 
  55 static size_t syscall_arg__scnprintf_augmented_sockaddr(struct syscall_arg *arg, char *bf, size_t size)
  56 {
  57         struct sockaddr *sa = (struct sockaddr *)arg->augmented.args;
  58         char family[32];
  59         size_t printed;
  60 
  61         strarray__scnprintf(&strarray__socket_families, family, sizeof(family), "%d", arg->show_string_prefix, sa->sa_family);
  62         printed = scnprintf(bf, size, "{ .family: %s", family);
  63 
  64         if (sa->sa_family < ARRAY_SIZE(af_scnprintfs) && af_scnprintfs[sa->sa_family])
  65                 printed += af_scnprintfs[sa->sa_family](sa, bf + printed, size - printed);
  66 
  67         return printed + scnprintf(bf + printed, size - printed, " }");
  68 }
  69 
  70 size_t syscall_arg__scnprintf_sockaddr(char *bf, size_t size, struct syscall_arg *arg)
  71 {
  72         if (arg->augmented.args)
  73                 return syscall_arg__scnprintf_augmented_sockaddr(arg, bf, size);
  74 
  75         return scnprintf(bf, size, "%#x", arg->val);
  76 }