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[src/trunk]: src/sbin/ifconfig ifaddrs has more data than just the address.
details: https://anonhg.NetBSD.org/src/rev/810568752c55
branches: trunk
changeset: 818161:810568752c55
user: roy <roy%NetBSD.org@localhost>
date: Fri Sep 30 16:47:56 2016 +0000
description:
ifaddrs has more data than just the address.
Use it instead of making pointless ioctl calls.
diffstat:
sbin/ifconfig/af_inet.c | 94 +++++++++++------------------------------------
sbin/ifconfig/af_inet6.c | 87 +++++++++++++------------------------------
2 files changed, 49 insertions(+), 132 deletions(-)
diffs (truncated from 338 to 300 lines):
diff -r 1e92f257da78 -r 810568752c55 sbin/ifconfig/af_inet.c
--- a/sbin/ifconfig/af_inet.c Fri Sep 30 12:10:40 2016 +0000
+++ b/sbin/ifconfig/af_inet.c Fri Sep 30 16:47:56 2016 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: af_inet.c,v 1.20 2016/09/13 00:20:51 christos Exp $ */
+/* $NetBSD: af_inet.c,v 1.21 2016/09/30 16:47:56 roy Exp $ */
/*
* Copyright (c) 1983, 1993
@@ -31,7 +31,7 @@
#include <sys/cdefs.h>
#ifndef lint
-__RCSID("$NetBSD: af_inet.c,v 1.20 2016/09/13 00:20:51 christos Exp $");
+__RCSID("$NetBSD: af_inet.c,v 1.21 2016/09/30 16:47:56 roy Exp $");
#endif /* not lint */
#include <sys/param.h>
@@ -62,11 +62,10 @@
static void in_constructor(void) __attribute__((constructor));
static void in_status(prop_dictionary_t, prop_dictionary_t, bool);
static void in_commit_address(prop_dictionary_t, prop_dictionary_t);
-static bool in_addr_flags(struct ifaddrs *, int);
static bool in_addr_tentative(struct ifaddrs *);
static bool in_addr_tentative_or_detached(struct ifaddrs *);
-static void in_alias(const char *, prop_dictionary_t, prop_dictionary_t,
- struct in_aliasreq *);
+static void in_alias(struct ifaddrs *, prop_dictionary_t, prop_dictionary_t,
+ bool);
static struct afswtch af = {
.af_name = "inet", .af_af = AF_INET, .af_status = in_status,
@@ -76,94 +75,50 @@
};
static void
-in_alias(const char *ifname, prop_dictionary_t env, prop_dictionary_t oenv,
- struct in_aliasreq *creq)
+in_alias(struct ifaddrs *ifa, prop_dictionary_t env, prop_dictionary_t oenv,
+ bool alias)
{
- struct ifreq ifr;
- bool alias;
- int s;
- unsigned short flags;
- struct in_aliasreq in_addreq;
- const struct sockaddr_in * const asin = &in_addreq.ifra_addr;
- const struct sockaddr_in * const dsin = &in_addreq.ifra_dstaddr;
- const struct sockaddr_in * const bsin = &in_addreq.ifra_broadaddr;
+ struct sockaddr_in sin;
char hbuf[NI_MAXHOST];
const int niflag = Nflag ? 0 : NI_NUMERICHOST;
+ char fbuf[1024];
if (lflag)
return;
- alias = true;
-
- /* Get the non-alias address for this interface. */
- if ((s = getsock(AF_INET)) == -1) {
- if (errno == EAFNOSUPPORT)
- return;
- err(EXIT_FAILURE, "socket");
- }
- memset(&ifr, 0, sizeof(ifr));
- estrlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
- if (prog_ioctl(s, SIOCGIFADDR, &ifr) == -1) {
- if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT)
- return;
- warn("SIOCGIFADDR");
- }
- /* If creq and ifr are the same address, this is not an alias. */
- if (memcmp(&ifr.ifr_addr, &creq->ifra_addr, sizeof(ifr.ifr_addr)) == 0)
- alias = false;
- in_addreq = *creq;
- if (prog_ioctl(s, SIOCGIFALIAS, &in_addreq) == -1) {
- if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT) {
- return;
- } else
- warn("SIOCGIFALIAS");
- }
-
- if (getnameinfo((const struct sockaddr *)asin, asin->sin_len,
+ if (getnameinfo(ifa->ifa_addr, ifa->ifa_addr->sa_len,
hbuf, sizeof(hbuf), NULL, 0, niflag))
strlcpy(hbuf, "", sizeof(hbuf)); /* some message? */
printf("\tinet %s%s", alias ? "alias " : "", hbuf);
- if (getifflags(env, oenv, &flags) == -1)
- err(EXIT_FAILURE, "%s: getifflags", __func__);
-
- if (flags & IFF_POINTOPOINT) {
- if (getnameinfo((const struct sockaddr *)dsin, dsin->sin_len,
+ if (ifa->ifa_flags & IFF_POINTOPOINT) {
+ if (getnameinfo(ifa->ifa_dstaddr, ifa->ifa_dstaddr->sa_len,
hbuf, sizeof(hbuf), NULL, 0, niflag))
strlcpy(hbuf, "", sizeof(hbuf)); /* some message? */
printf(" -> %s", hbuf);
}
- printf(" netmask 0x%x", ntohl(in_addreq.ifra_mask.sin_addr.s_addr));
+ memcpy(&sin, ifa->ifa_netmask, ifa->ifa_netmask->sa_len);
+ printf(" netmask 0x%x", ntohl(sin.sin_addr.s_addr));
- if (flags & IFF_BROADCAST) {
- if (getnameinfo((const struct sockaddr *)bsin, bsin->sin_len,
+ if (ifa->ifa_flags & IFF_BROADCAST) {
+ if (getnameinfo(ifa->ifa_broadaddr, ifa->ifa_broadaddr->sa_len,
hbuf, sizeof(hbuf), NULL, 0, niflag))
strlcpy(hbuf, "", sizeof(hbuf)); /* some message? */
printf(" broadcast %s", hbuf);
}
-#ifdef IN_IFF_TENTATIVE
- memcpy(&ifr.ifr_addr, &creq->ifra_addr, creq->ifra_addr.sin_len);
- if (prog_ioctl(s, SIOCGIFAFLAG_IN, &ifr) == -1) {
- if (errno != EADDRNOTAVAIL)
- warn("SIOCGIFAFLAG_IN");
- } else {
- char fbuf[1024];
- (void)snprintb(fbuf, sizeof(fbuf), IN_IFFBITS,
- ifr.ifr_addrflags);
- printf(" flags %s", fbuf);
- }
-#endif
+ (void)snprintb(fbuf, sizeof(fbuf), IN_IFFBITS, ifa->ifa_addrflags);
+ printf(" flags %s", fbuf);
}
static void
in_status(prop_dictionary_t env, prop_dictionary_t oenv, bool force)
{
struct ifaddrs *ifap, *ifa;
- struct in_aliasreq ifra;
bool printprefs = false;
const char *ifname;
+ int alias = 0;
if ((ifname = getifname(env)) == NULL)
err(EXIT_FAILURE, "%s: getifname", __func__);
@@ -178,13 +133,8 @@
continue;
if (ifa->ifa_addr->sa_family != AF_INET)
continue;
- if (sizeof(ifra.ifra_addr) < ifa->ifa_addr->sa_len)
- continue;
-
- memset(&ifra, 0, sizeof(ifra));
- estrlcpy(ifra.ifra_name, ifa->ifa_name, sizeof(ifra.ifra_name));
- memcpy(&ifra.ifra_addr, ifa->ifa_addr, ifa->ifa_addr->sa_len);
- in_alias(ifa->ifa_name, env, oenv, &ifra);
+ /* The first address is not an alias. */
+ in_alias(ifa, env, oenv, alias++);
if (printprefs)
ifa_print_preference(ifa->ifa_name, ifa->ifa_addr);
printf("\n");
@@ -244,7 +194,7 @@
in_addr_tentative(struct ifaddrs *ifa)
{
-#ifdef IN_IFF_TENTATIVE
+#ifdef SIOCGIFAFLAG_IN
return in_addr_flags(ifa, IN_IFF_TENTATIVE);
#else
return false;
@@ -255,7 +205,7 @@
in_addr_tentative_or_detached(struct ifaddrs *ifa)
{
-#ifdef IN_IFF_TENTATIVE
+#ifdef SIOCGIFAFLAG_IN
return in_addr_flags(ifa, IN_IFF_TENTATIVE | IN_IFF_DETACHED);
#else
return false;
diff -r 1e92f257da78 -r 810568752c55 sbin/ifconfig/af_inet6.c
--- a/sbin/ifconfig/af_inet6.c Fri Sep 30 12:10:40 2016 +0000
+++ b/sbin/ifconfig/af_inet6.c Fri Sep 30 16:47:56 2016 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: af_inet6.c,v 1.36 2016/09/13 00:20:51 christos Exp $ */
+/* $NetBSD: af_inet6.c,v 1.37 2016/09/30 16:47:56 roy Exp $ */
/*
* Copyright (c) 1983, 1993
@@ -31,7 +31,7 @@
#include <sys/cdefs.h>
#ifndef lint
-__RCSID("$NetBSD: af_inet6.c,v 1.36 2016/09/13 00:20:51 christos Exp $");
+__RCSID("$NetBSD: af_inet6.c,v 1.37 2016/09/30 16:47:56 roy Exp $");
#endif /* not lint */
#include <sys/param.h>
@@ -60,8 +60,7 @@
#include "prog_ops.h"
static void in6_constructor(void) __attribute__((constructor));
-static void in6_alias(const char *, prop_dictionary_t, prop_dictionary_t,
- struct in6_ifreq *);
+static void in6_alias(struct ifaddrs *, prop_dictionary_t, prop_dictionary_t);
static void in6_commit_address(prop_dictionary_t, prop_dictionary_t);
static int setia6eui64_impl(prop_dictionary_t, struct in6_aliasreq *);
@@ -72,7 +71,6 @@
static int setia6lifetime(prop_dictionary_t, int64_t, time_t *, uint32_t *);
static void in6_status(prop_dictionary_t, prop_dictionary_t, bool);
-static bool in6_addr_flags(struct ifaddrs *ifa, int);
static bool in6_addr_tentative(struct ifaddrs *ifa);
static bool in6_addr_tentative_or_detached(struct ifaddrs *ifa);
@@ -262,46 +260,25 @@
/* XXX not really an alias */
void
-in6_alias(const char *ifname, prop_dictionary_t env, prop_dictionary_t oenv,
- struct in6_ifreq *creq)
+in6_alias(struct ifaddrs *ifa, prop_dictionary_t env, prop_dictionary_t oenv)
{
- struct in6_ifreq ifr6;
struct sockaddr_in6 *sin6;
char hbuf[NI_MAXHOST];
u_int32_t scopeid;
- int s;
const int niflag = Nflag ? 0 : NI_NUMERICHOST;
- unsigned short flags;
+ char fbuf[1024];
- /* Get the non-alias address for this interface. */
- if ((s = getsock(AF_INET6)) == -1) {
- if (errno == EAFNOSUPPORT)
- return;
- err(EXIT_FAILURE, "socket");
- }
-
- sin6 = &creq->ifr_addr;
-
+ sin6 = (struct sockaddr_in6 *)ifa->ifa_addr;
inet6_getscopeid(sin6, INET6_IS_ADDR_LINKLOCAL);
scopeid = sin6->sin6_scope_id;
if (getnameinfo((const struct sockaddr *)sin6, sin6->sin6_len,
hbuf, sizeof(hbuf), NULL, 0, niflag))
strlcpy(hbuf, "", sizeof(hbuf)); /* some message? */
printf("\tinet6 %s", hbuf);
-
- if (getifflags(env, oenv, &flags) == -1)
- err(EXIT_FAILURE, "%s: getifflags", __func__);
+ inet6_putscopeid(sin6, INET6_IS_ADDR_LINKLOCAL);
- if (flags & IFF_POINTOPOINT) {
- ifr6 = *creq;
- if (prog_ioctl(s, SIOCGIFDSTADDR_IN6, &ifr6) == -1) {
- if (errno != EADDRNOTAVAIL)
- warn("SIOCGIFDSTADDR_IN6");
- memset(&ifr6.ifr_addr, 0, sizeof(ifr6.ifr_addr));
- ifr6.ifr_addr.sin6_family = AF_INET6;
- ifr6.ifr_addr.sin6_len = sizeof(struct sockaddr_in6);
- }
- sin6 = &ifr6.ifr_addr;
+ if (ifa->ifa_flags & IFF_POINTOPOINT) {
+ sin6 = (struct sockaddr_in6 *)ifa->ifa_dstaddr;
inet6_getscopeid(sin6, INET6_IS_ADDR_LINKLOCAL);
hbuf[0] = '\0';
if (getnameinfo((struct sockaddr *)sin6, sin6->sin6_len,
@@ -310,33 +287,30 @@
printf(" -> %s", hbuf);
}
- ifr6 = *creq;
- if (prog_ioctl(s, SIOCGIFNETMASK_IN6, &ifr6) == -1) {
- if (errno != EADDRNOTAVAIL)
- warn("SIOCGIFNETMASK_IN6");
- } else {
- sin6 = &ifr6.ifr_addr;
- printf(" prefixlen %d", prefix(&sin6->sin6_addr,
- sizeof(struct in6_addr)));
- }
+ sin6 = (struct sockaddr_in6 *)ifa->ifa_netmask;
+ printf(" prefixlen %d", prefix(&sin6->sin6_addr,
+ sizeof(struct in6_addr)));
- ifr6 = *creq;
- if (prog_ioctl(s, SIOCGIFAFLAG_IN6, &ifr6) == -1) {
- if (errno != EADDRNOTAVAIL)
- warn("SIOCGIFAFLAG_IN6");
- } else {
- char fbuf[1024];
- (void)snprintb(fbuf, sizeof(fbuf), IN6_IFFBITS,
- ifr6.ifr_ifru.ifru_flags6);
- printf(" flags %s", fbuf);
- }
+ (void)snprintb(fbuf, sizeof(fbuf), IN6_IFFBITS, ifa->ifa_addrflags);
+ printf(" flags %s", fbuf);
if (scopeid)
printf(" scopeid 0x%x", scopeid);
if (get_flag('L')) {
+ int s;
+ struct in6_ifreq ifr6;
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