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authorArnaldo Carvalho de Melo <acme@redhat.com>2018-08-28 21:24:44 +0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2018-08-30 20:52:20 +0200
commitd5a7e6613b00d46a4971e8b69e18e2cfd7b00df3 (patch)
treeedef2546dd01b866f09c70a3bfa99cf7286b409e /tools/perf/trace
parentperf bpf: Add linux/socket.h to the headers accessible to bpf proggies (diff)
downloadlinux-d5a7e6613b00d46a4971e8b69e18e2cfd7b00df3.tar.xz
linux-d5a7e6613b00d46a4971e8b69e18e2cfd7b00df3.zip
perf trace augmented_syscalls: Augment connect's 'sockaddr' arg
As the first example of augmenting something other than a 'filename', augment the 'struct sockaddr' argument for the 'connect' syscall: # perf trace -e tools/perf/examples/bpf/augmented_syscalls.c ssh -6 fedorapeople.org 0.000 ssh/29669 connect(fd: 3, uservaddr: { .family: LOCAL, path: /var/run/nscd/socket }, addrlen: 110) 0.042 ssh/29669 connect(fd: 3, uservaddr: { .family: LOCAL, path: /var/run/nscd/socket }, addrlen: 110) 1.329 ssh/29669 connect(fd: 3, uservaddr: { .family: LOCAL, path: /var/run/nscd/socket }, addrlen: 110) 1.362 ssh/29669 connect(fd: 3, uservaddr: { .family: LOCAL, path: /var/run/nscd/socket }, addrlen: 110) 1.458 ssh/29669 connect(fd: 3, uservaddr: { .family: LOCAL, path: /var/run/nscd/socket }, addrlen: 110) 1.478 ssh/29669 connect(fd: 3, uservaddr: { .family: LOCAL, path: /var/run/nscd/socket }, addrlen: 110) 1.683 ssh/29669 connect(fd: 3<socket:[125942]>, uservaddr: { .family: INET, port: 53, addr: 192.168.43.1 }, addrlen: 16) 4.710 ssh/29669 connect(fd: 3<socket:[125942]>, uservaddr: { .family: INET6, port: 22, addr: 2610:28:3090:3001:5054:ff:fea7:9474 }, addrlen: 28) root@fedorapeople.org: Permission denied (publickey). # This is still just augmenting the syscalls:sys_enter_connect part, later we'll wire this up to augment the enter+exit combo, like in the tradicional 'perf trace' and 'strace' outputs. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-s7l541cbiqb22ifio6z7dpf6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/trace')
-rw-r--r--tools/perf/trace/beauty/Build1
-rw-r--r--tools/perf/trace/beauty/beauty.h5
-rw-r--r--tools/perf/trace/beauty/sockaddr.c58
3 files changed, 64 insertions, 0 deletions
diff --git a/tools/perf/trace/beauty/Build b/tools/perf/trace/beauty/Build
index f528ba35e140..c3b0afd67760 100644
--- a/tools/perf/trace/beauty/Build
+++ b/tools/perf/trace/beauty/Build
@@ -7,5 +7,6 @@ endif
libperf-y += kcmp.o
libperf-y += pkey_alloc.o
libperf-y += prctl.o
+libperf-y += sockaddr.o
libperf-y += socket.o
libperf-y += statx.o
diff --git a/tools/perf/trace/beauty/beauty.h b/tools/perf/trace/beauty/beauty.h
index 6ca044d3d851..2570152d3909 100644
--- a/tools/perf/trace/beauty/beauty.h
+++ b/tools/perf/trace/beauty/beauty.h
@@ -30,6 +30,8 @@ struct thread;
size_t pid__scnprintf_fd(struct trace *trace, pid_t pid, int fd, char *bf, size_t size);
+extern struct strarray strarray__socket_families;
+
/**
* augmented_arg: extra payload for syscall pointer arguments
@@ -135,6 +137,9 @@ size_t syscall_arg__scnprintf_prctl_arg2(char *bf, size_t size, struct syscall_a
size_t syscall_arg__scnprintf_prctl_arg3(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_PRCTL_ARG3 syscall_arg__scnprintf_prctl_arg3
+size_t syscall_arg__scnprintf_sockaddr(char *bf, size_t size, struct syscall_arg *arg);
+#define SCA_SOCKADDR syscall_arg__scnprintf_sockaddr
+
size_t syscall_arg__scnprintf_socket_protocol(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_SK_PROTO syscall_arg__scnprintf_socket_protocol
diff --git a/tools/perf/trace/beauty/sockaddr.c b/tools/perf/trace/beauty/sockaddr.c
new file mode 100644
index 000000000000..3944a7d54d3c
--- /dev/null
+++ b/tools/perf/trace/beauty/sockaddr.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2018, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
+
+#include "trace/beauty/beauty.h"
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/un.h>
+#include <arpa/inet.h>
+
+static const char *socket_families[] = {
+ "UNSPEC", "LOCAL", "INET", "AX25", "IPX", "APPLETALK", "NETROM",
+ "BRIDGE", "ATMPVC", "X25", "INET6", "ROSE", "DECnet", "NETBEUI",
+ "SECURITY", "KEY", "NETLINK", "PACKET", "ASH", "ECONET", "ATMSVC",
+ "RDS", "SNA", "IRDA", "PPPOX", "WANPIPE", "LLC", "IB", "CAN", "TIPC",
+ "BLUETOOTH", "IUCV", "RXRPC", "ISDN", "PHONET", "IEEE802154", "CAIF",
+ "ALG", "NFC", "VSOCK",
+};
+DEFINE_STRARRAY(socket_families);
+
+static size_t syscall_arg__scnprintf_augmented_sockaddr(struct syscall_arg *arg, char *bf, size_t size)
+{
+ struct sockaddr_in *sin = (struct sockaddr_in *)arg->augmented.args;
+ char family[32];
+ size_t printed;
+
+ strarray__scnprintf(&strarray__socket_families, family, sizeof(family), "%d", sin->sin_family);
+ printed = scnprintf(bf, size, "{ .family: %s", family);
+
+ if (sin->sin_family == AF_INET) {
+ char tmp[512];
+ printed += scnprintf(bf + printed, size - printed, ", port: %d, addr: %s", ntohs(sin->sin_port),
+ inet_ntop(sin->sin_family, &sin->sin_addr, tmp, sizeof(tmp)));
+ } else if (sin->sin_family == AF_INET6) {
+ struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sin;
+ u32 flowinfo = ntohl(sin6->sin6_flowinfo);
+ char tmp[512];
+
+ printed += scnprintf(bf + printed, size - printed, ", port: %d, addr: %s", ntohs(sin6->sin6_port),
+ inet_ntop(sin6->sin6_family, &sin6->sin6_addr, tmp, sizeof(tmp)));
+ if (flowinfo != 0)
+ printed += scnprintf(bf + printed, size - printed, ", flowinfo: %lu", flowinfo);
+ if (sin6->sin6_scope_id != 0)
+ printed += scnprintf(bf + printed, size - printed, ", scope_id: %lu", sin6->sin6_scope_id);
+ } else if (sin->sin_family == AF_LOCAL) {
+ struct sockaddr_un *sun = (struct sockaddr_un *)sin;
+ printed += scnprintf(bf + printed, size - printed, ", path: %s", sun->sun_path);
+ }
+
+ return printed + scnprintf(bf + printed, size - printed, " }");
+}
+
+size_t syscall_arg__scnprintf_sockaddr(char *bf, size_t size, struct syscall_arg *arg)
+{
+ if (arg->augmented.args)
+ return syscall_arg__scnprintf_augmented_sockaddr(arg, bf, size);
+
+ return scnprintf(bf, size, "%#x", arg->val);
+}