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Message-Id: <1413676229-23258-1-git-send-email-vadim4j@gmail.com>
Date: Sun, 19 Oct 2014 02:50:29 +0300
From: Vadim Kochan <vadim4j@...il.com>
To: netdev@...r.kernel.org
Cc: Vadim Kochan <vadim4j@...il.com>
Subject: [PATCH iproute2] ss: Refactor to use macro for define diag nl request
Signed-off-by: Vadim Kochan <vadim4j@...il.com>
---
misc/ss.c | 57 ++++++++++++++++++---------------------------------------
1 file changed, 18 insertions(+), 39 deletions(-)
diff --git a/misc/ss.c b/misc/ss.c
index 2420b51..261847b 100644
--- a/misc/ss.c
+++ b/misc/ss.c
@@ -41,6 +41,20 @@
#include <linux/packet_diag.h>
#include <linux/netlink_diag.h>
+#define DIAG_REQUEST(_req, _r) \
+ struct { \
+ struct nlmsghdr nlh; \
+ _r; \
+ } _req = { \
+ .nlh = { \
+ .nlmsg_type = SOCK_DIAG_BY_FAMILY, \
+ .nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST,\
+ .nlmsg_seq = 123456, \
+ .nlmsg_len = sizeof(_req), \
+ .nlmsg_pid = 0, \
+ }, \
+ }
+
#if HAVE_SELINUX
#include <selinux/selinux.h>
#else
@@ -1795,10 +1809,7 @@ static int tcpdiag_send(int fd, int protocol, struct filter *f)
static int sockdiag_send(int family, int fd, int protocol, struct filter *f)
{
struct sockaddr_nl nladdr;
- struct {
- struct nlmsghdr nlh;
- struct inet_diag_req_v2 r;
- } req;
+ DIAG_REQUEST(req, struct inet_diag_req_v2 r);
char *bc = NULL;
int bclen;
struct msghdr msg;
@@ -1811,11 +1822,6 @@ static int sockdiag_send(int family, int fd, int protocol, struct filter *f)
memset(&nladdr, 0, sizeof(nladdr));
nladdr.nl_family = AF_NETLINK;
- req.nlh.nlmsg_len = sizeof(req);
- req.nlh.nlmsg_type = SOCK_DIAG_BY_FAMILY;
- req.nlh.nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST;
- req.nlh.nlmsg_pid = 0;
- req.nlh.nlmsg_seq = 123456;
memset(&req.r, 0, sizeof(req.r));
req.r.sdiag_family = family;
req.r.sdiag_protocol = protocol;
@@ -2577,16 +2583,7 @@ close_it:
static int unix_show_netlink(struct filter *f, FILE *dump_fp)
{
- struct {
- struct nlmsghdr nlh;
- struct unix_diag_req r;
- } req;
-
- memset(&req, 0, sizeof(req));
- req.nlh.nlmsg_len = sizeof(req);
- req.nlh.nlmsg_type = SOCK_DIAG_BY_FAMILY;
- req.nlh.nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST;
- req.nlh.nlmsg_seq = 123456;
+ DIAG_REQUEST(req, struct unix_diag_req r);
req.r.sdiag_family = AF_UNIX;
req.r.udiag_states = f->states;
@@ -2778,21 +2775,12 @@ static int packet_show_sock(struct nlmsghdr *nlh, struct filter *f)
static int packet_show_netlink(struct filter *f, FILE *dump_fp)
{
int fd;
- struct {
- struct nlmsghdr nlh;
- struct packet_diag_req r;
- } req;
+ DIAG_REQUEST(req, struct packet_diag_req r);
char buf[8192];
if ((fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_INET_DIAG)) < 0)
return -1;
- memset(&req, 0, sizeof(req));
- req.nlh.nlmsg_len = sizeof(req);
- req.nlh.nlmsg_type = SOCK_DIAG_BY_FAMILY;
- req.nlh.nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST;
- req.nlh.nlmsg_seq = 123456;
-
req.r.sdiag_family = AF_PACKET;
req.r.pdiag_show = PACKET_SHOW_INFO | PACKET_SHOW_MEMINFO | PACKET_SHOW_FILTER;
@@ -3091,16 +3079,7 @@ static int netlink_show_sock(struct nlmsghdr *nlh, struct filter *f)
static int netlink_show_netlink(struct filter *f, FILE *dump_fp)
{
- struct {
- struct nlmsghdr nlh;
- struct netlink_diag_req r;
- } req;
-
- memset(&req, 0, sizeof(req));
- req.nlh.nlmsg_len = sizeof(req);
- req.nlh.nlmsg_type = SOCK_DIAG_BY_FAMILY;
- req.nlh.nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST;
- req.nlh.nlmsg_seq = 123456;
+ DIAG_REQUEST(req, struct netlink_diag_req r);
req.r.sdiag_family = AF_NETLINK;
req.r.sdiag_protocol = NDIAG_PROTO_ALL;
--
2.1.0
--
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