svn commit: r318813 - stable/11/sbin/ifconfig
Alan Somers
asomers at FreeBSD.org
Wed May 24 20:52:49 UTC 2017
Author: asomers
Date: Wed May 24 20:52:47 2017
New Revision: 318813
URL: https://svnweb.freebsd.org/changeset/base/318813
Log:
MFC r317755, r317758
r317755:
Various Coverity fixes in ifconfig(8)
* Exit early if kldload(2) fails (1011259). This is the only change that
affects ifconfig's behavior.
* Close memory and resource leaks (1305624, 1305205, 1007100)
* Mark usage() as _Noreturn (1305806, 1305750)
* Fix some dereference after null checks (1011474, 270774)
Reported by: Coverity
CID: 1305624, 1305205, 1007100, 1305806, 1305750, 1011474,
CID: 270774, 1011259
Reviewed by: cem
Sponsored by: Spectra Logic Corp
Differential Revision: https://reviews.freebsd.org/D10587
r317758:
Unbreak ifconfig for mlx4en(4) after r317755
ifconfig doesn't correctly infer mlx interfaces' module names, so it will
attempt to load the mlx(4) module even when not necessary.
Reported by: rstone
X-MFC-With: 317755
Sponsored by: Spectra Logic Corp
Modified:
stable/11/sbin/ifconfig/af_inet6.c
stable/11/sbin/ifconfig/ifclone.c
stable/11/sbin/ifconfig/ifconfig.c
stable/11/sbin/ifconfig/iflagg.c
stable/11/sbin/ifconfig/ifpfsync.c
Directory Properties:
stable/11/ (props changed)
Modified: stable/11/sbin/ifconfig/af_inet6.c
==============================================================================
--- stable/11/sbin/ifconfig/af_inet6.c Wed May 24 20:41:26 2017 (r318812)
+++ stable/11/sbin/ifconfig/af_inet6.c Wed May 24 20:52:47 2017 (r318813)
@@ -349,12 +349,14 @@ in6_getaddr(const char *s, int which)
bzero(&hints, sizeof(struct addrinfo));
hints.ai_family = AF_INET6;
error = getaddrinfo(s, NULL, &hints, &res);
+ if (error != 0) {
+ if (inet_pton(AF_INET6, s, &sin->sin6_addr) != 1)
+ errx(1, "%s: bad value", s);
+ } else {
+ bcopy(res->ai_addr, sin, res->ai_addrlen);
+ freeaddrinfo(res);
+ }
}
- if (error != 0) {
- if (inet_pton(AF_INET6, s, &sin->sin6_addr) != 1)
- errx(1, "%s: bad value", s);
- } else
- bcopy(res->ai_addr, sin, res->ai_addrlen);
}
static int
Modified: stable/11/sbin/ifconfig/ifclone.c
==============================================================================
--- stable/11/sbin/ifconfig/ifclone.c Wed May 24 20:41:26 2017 (r318812)
+++ stable/11/sbin/ifconfig/ifclone.c Wed May 24 20:52:47 2017 (r318813)
@@ -87,6 +87,7 @@ list_cloners(void)
putchar('\n');
free(buf);
+ close(s);
}
struct clone_defcb {
Modified: stable/11/sbin/ifconfig/ifconfig.c
==============================================================================
--- stable/11/sbin/ifconfig/ifconfig.c Wed May 24 20:41:26 2017 (r318812)
+++ stable/11/sbin/ifconfig/ifconfig.c Wed May 24 20:52:47 2017 (r318813)
@@ -106,7 +106,7 @@ static int ifconfig(int argc, char *cons
static void status(const struct afswtch *afp, const struct sockaddr_dl *sdl,
struct ifaddrs *ifa);
static void tunnel_status(int s);
-static void usage(void);
+static void usage(void) _Noreturn;
static struct afswtch *af_getbyname(const char *name);
static struct afswtch *af_getbyfamily(int af);
@@ -802,26 +802,24 @@ top:
*/
p = (setaddr ? &setifdstaddr_cmd : &setifaddr_cmd);
}
- if (p->c_u.c_func || p->c_u.c_func2) {
- if (p->c_parameter == NEXTARG) {
- if (argv[1] == NULL)
- errx(1, "'%s' requires argument",
- p->c_name);
- p->c_u.c_func(argv[1], 0, s, afp);
+ if (p->c_parameter == NEXTARG && p->c_u.c_func) {
+ if (argv[1] == NULL)
+ errx(1, "'%s' requires argument",
+ p->c_name);
+ p->c_u.c_func(argv[1], 0, s, afp);
+ argc--, argv++;
+ } else if (p->c_parameter == OPTARG && p->c_u.c_func) {
+ p->c_u.c_func(argv[1], 0, s, afp);
+ if (argv[1] != NULL)
argc--, argv++;
- } else if (p->c_parameter == OPTARG) {
- p->c_u.c_func(argv[1], 0, s, afp);
- if (argv[1] != NULL)
- argc--, argv++;
- } else if (p->c_parameter == NEXTARG2) {
- if (argc < 3)
- errx(1, "'%s' requires 2 arguments",
- p->c_name);
- p->c_u.c_func2(argv[1], argv[2], s, afp);
- argc -= 2, argv += 2;
- } else
- p->c_u.c_func(*argv, p->c_parameter, s, afp);
- }
+ } else if (p->c_parameter == NEXTARG2 && p->c_u.c_func2) {
+ if (argc < 3)
+ errx(1, "'%s' requires 2 arguments",
+ p->c_name);
+ p->c_u.c_func2(argv[1], argv[2], s, afp);
+ argc -= 2, argv += 2;
+ } else if (p->c_u.c_func)
+ p->c_u.c_func(*argv, p->c_parameter, s, afp);
argc--, argv++;
}
@@ -1297,8 +1295,8 @@ printb(const char *s, unsigned v, const
printf("%s=%o", s, v);
else
printf("%s=%x", s, v);
- bits++;
if (bits) {
+ bits++;
putchar('<');
while ((i = *bits++) != '\0') {
if (v & (1 << (i-1))) {
@@ -1376,8 +1374,11 @@ ifmaybeload(const char *name)
}
}
- /* not present, we should try to load it */
- kldload(ifkind);
+ /*
+ * Try to load the module. But ignore failures, because ifconfig can't
+ * infer the names of all drivers (eg mlx4en(4)).
+ */
+ (void) kldload(ifkind);
}
static struct cmd basic_cmds[] = {
Modified: stable/11/sbin/ifconfig/iflagg.c
==============================================================================
--- stable/11/sbin/ifconfig/iflagg.c Wed May 24 20:41:26 2017 (r318812)
+++ stable/11/sbin/ifconfig/iflagg.c Wed May 24 20:52:47 2017 (r318813)
@@ -200,24 +200,17 @@ static void
lagg_status(int s)
{
struct lagg_protos lpr[] = LAGG_PROTOS;
- struct lagg_reqport rp, rpbuf[LAGG_MAX_PORTS];
+ struct lagg_reqport rpbuf[LAGG_MAX_PORTS];
struct lagg_reqall ra;
struct lagg_reqopts ro;
struct lagg_reqflags rf;
struct lacp_opreq *lp;
const char *proto = "<unknown>";
- int i, isport = 0;
+ int i;
- bzero(&rp, sizeof(rp));
bzero(&ra, sizeof(ra));
bzero(&ro, sizeof(ro));
- strlcpy(rp.rp_ifname, name, sizeof(rp.rp_ifname));
- strlcpy(rp.rp_portname, name, sizeof(rp.rp_portname));
-
- if (ioctl(s, SIOCGLAGGPORT, &rp) == 0)
- isport = 1;
-
strlcpy(ra.ra_ifname, name, sizeof(ra.ra_ifname));
ra.ra_size = sizeof(rpbuf);
ra.ra_port = rpbuf;
@@ -257,8 +250,6 @@ lagg_status(int s)
sep = ",";
}
}
- if (isport)
- printf(" laggdev %s", rp.rp_ifname);
putchar('\n');
if (verbose) {
printf("\tlagg options:\n");
Modified: stable/11/sbin/ifconfig/ifpfsync.c
==============================================================================
--- stable/11/sbin/ifconfig/ifpfsync.c Wed May 24 20:41:26 2017 (r318812)
+++ stable/11/sbin/ifconfig/ifpfsync.c Wed May 24 20:52:47 2017 (r318813)
@@ -120,6 +120,7 @@ setpfsync_syncpeer(const char *val, int
if (ioctl(s, SIOCSETPFSYNC, (caddr_t)&ifr) == -1)
err(1, "SIOCSETPFSYNC");
+ freeaddrinfo(peerres);
}
/* ARGSUSED */
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