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Date: Tue, 30 Jan 2018 20:09:17 +0200
From: Serhey Popovych <serhe.popovych@...il.com>
To: netdev@...r.kernel.org
Subject: [PATCH iproute2-next v2 2/6] ipaddress: Simplify print_linkinfo_brief() and it's usage
Improve print_linkinfo_brief() and it's callers:
1) Get rid of custom @struct filter pointer @pfilter: it is NULL in
all callers anyway and global @filter is used.
2) Simplify calling code in ipaddr_list_flush_or_save() by
introducing intermediate variable of @struct nlmsghdr, drop
duplicated code: print_linkinfo_brief() never returns values other
than <= 0 so we can move print_selected_addrinfo() outside of each
block.
Signed-off-by: Serhey Popovych <serhe.popovych@...il.com>
---
ip/ip_common.h | 3 +--
ip/ipaddress.c | 60 ++++++++++++++++++++++++--------------------------------
ip/iplink.c | 2 +-
3 files changed, 28 insertions(+), 37 deletions(-)
diff --git a/ip/ip_common.h b/ip/ip_common.h
index 3203f0c..f5adbad 100644
--- a/ip/ip_common.h
+++ b/ip/ip_common.h
@@ -30,8 +30,7 @@ int get_operstate(const char *name);
int print_linkinfo(const struct sockaddr_nl *who,
struct nlmsghdr *n, void *arg);
int print_linkinfo_brief(const struct sockaddr_nl *who,
- struct nlmsghdr *n, void *arg,
- struct link_filter *filter);
+ struct nlmsghdr *n, void *arg);
int print_addrinfo(const struct sockaddr_nl *who,
struct nlmsghdr *n, void *arg);
int print_addrlabel(const struct sockaddr_nl *who,
diff --git a/ip/ipaddress.c b/ip/ipaddress.c
index f8fd392..c15abd1 100644
--- a/ip/ipaddress.c
+++ b/ip/ipaddress.c
@@ -919,8 +919,7 @@ static void print_link_stats(FILE *fp, struct nlmsghdr *n)
}
int print_linkinfo_brief(const struct sockaddr_nl *who,
- struct nlmsghdr *n, void *arg,
- struct link_filter *pfilter)
+ struct nlmsghdr *n, void *arg)
{
FILE *fp = (FILE *)arg;
struct ifinfomsg *ifi = NLMSG_DATA(n);
@@ -937,12 +936,9 @@ int print_linkinfo_brief(const struct sockaddr_nl *who,
if (len < 0)
return -1;
- if (!pfilter)
- pfilter = &filter;
-
- if (pfilter->ifindex && ifi->ifi_index != pfilter->ifindex)
+ if (filter.ifindex && ifi->ifi_index != filter.ifindex)
return -1;
- if (pfilter->up && !(ifi->ifi_flags&IFF_UP))
+ if (filter.up && !(ifi->ifi_flags&IFF_UP))
return -1;
parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
@@ -953,30 +949,30 @@ int print_linkinfo_brief(const struct sockaddr_nl *who,
name = rta_getattr_str(tb[IFLA_IFNAME]);
}
- if (pfilter->label &&
- (!pfilter->family || pfilter->family == AF_PACKET) &&
- fnmatch(pfilter->label, name, 0))
+ if (filter.label &&
+ (!filter.family || filter.family == AF_PACKET) &&
+ fnmatch(filter.label, name, 0))
return -1;
if (tb[IFLA_GROUP]) {
int group = rta_getattr_u32(tb[IFLA_GROUP]);
- if (pfilter->group != -1 && group != pfilter->group)
+ if (filter.group != -1 && group != filter.group)
return -1;
}
if (tb[IFLA_MASTER]) {
int master = rta_getattr_u32(tb[IFLA_MASTER]);
- if (pfilter->master > 0 && master != pfilter->master)
+ if (filter.master > 0 && master != filter.master)
return -1;
- } else if (pfilter->master > 0)
+ } else if (filter.master > 0)
return -1;
- if (pfilter->kind && match_link_kind(tb, pfilter->kind, 0))
+ if (filter.kind && match_link_kind(tb, filter.kind, 0))
return -1;
- if (pfilter->slave_kind && match_link_kind(tb, pfilter->slave_kind, 1))
+ if (filter.slave_kind && match_link_kind(tb, filter.slave_kind, 1))
return -1;
if (n->nlmsg_type == RTM_DELLINK)
@@ -1006,7 +1002,7 @@ int print_linkinfo_brief(const struct sockaddr_nl *who,
if (tb[IFLA_OPERSTATE])
print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
- if (pfilter->family == AF_PACKET) {
+ if (filter.family == AF_PACKET) {
SPRINT_BUF(b1);
if (tb[IFLA_ADDRESS]) {
@@ -1020,7 +1016,7 @@ int print_linkinfo_brief(const struct sockaddr_nl *who,
}
}
- if (pfilter->family == AF_PACKET) {
+ if (filter.family == AF_PACKET) {
print_link_flags(fp, ifi->ifi_flags, m_flag);
print_string(PRINT_FP, NULL, "%s", "\n");
}
@@ -2188,25 +2184,21 @@ static int ipaddr_list_flush_or_save(int argc, char **argv, int action)
ipaddr_filter(&linfo, ainfo);
for (l = linfo.head; l; l = l->next) {
- int res = 0;
- struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
+ struct nlmsghdr *n = &l->h;
+ struct ifinfomsg *ifi = NLMSG_DATA(n);
+ int res;
open_json_object(NULL);
- if (brief) {
- if (print_linkinfo_brief(NULL, &l->h,
- stdout, NULL) == 0)
- if (filter.family != AF_PACKET)
- print_selected_addrinfo(ifi,
- ainfo->head,
- stdout);
- } else if (no_link ||
- (res = print_linkinfo(NULL, &l->h, stdout)) >= 0) {
- if (filter.family != AF_PACKET)
- print_selected_addrinfo(ifi,
- ainfo->head, stdout);
- if (res > 0 && !do_link && show_stats)
- print_link_stats(stdout, &l->h);
- }
+ if (brief)
+ res = print_linkinfo_brief(NULL, n, stdout);
+ else if (no_link)
+ res = 0;
+ else
+ res = print_linkinfo(NULL, n, stdout);
+ if (res >= 0 && filter.family != AF_PACKET)
+ print_selected_addrinfo(ifi, ainfo->head, stdout);
+ if (res > 0 && !do_link && show_stats)
+ print_link_stats(stdout, n);
close_json_object();
}
fflush(stdout);
diff --git a/ip/iplink.c b/ip/iplink.c
index 230f4c5..882cd13 100644
--- a/ip/iplink.c
+++ b/ip/iplink.c
@@ -1077,7 +1077,7 @@ int iplink_get(unsigned int flags, char *name, __u32 filt_mask)
open_json_object(NULL);
if (brief)
- print_linkinfo_brief(NULL, answer, stdout, NULL);
+ print_linkinfo_brief(NULL, answer, stdout);
else
print_linkinfo(NULL, answer, stdout);
close_json_object();
--
1.7.10.4
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