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Make ifconfig ifN -vnet <jname|jid> actually work:

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- fix ifconfig to ignore the non-existent interface in the current
  network stack in case of '-vnet'.
- in ifconfig: actually use the local variables defined for the
  vnet functions rather than modifying the global.

Reviewed by:	rwatson
Approved by:	re (kib)
This commit is contained in:
Bjoern A. Zeeb 2009-07-26 11:25:57 +00:00
parent 5592fb2f9b
commit 00dc5f8e66
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=195890
1 changed files with 20 additions and 7 deletions
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27
sbin/ifconfig/ifconfig.c
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@ -252,6 +252,19 @@ main(int argc, char *argv[])
ifconfig(argc, argv, 1, NULL);
exit(0);
}
/*
* NOTE: We have to special-case the `-vnet' command
* right here as we would otherwise fail when trying
* to find the interface as it lives in another vnet.
*/
if (argc > 0 && (strcmp(argv[0], "-vnet") == 0)) {
iflen = strlcpy(name, ifname, sizeof(name));
if (iflen >= sizeof(name))
errx(1, "%s: interface name too long",
ifname);
ifconfig(argc, argv, 0, NULL);
exit(0);
}
errx(1, "interface %s does not exist", ifname);
}
}
@ -636,10 +649,10 @@ setifvnet(const char *jname, int dummy __unused, int s,
struct ifreq my_ifr;
memcpy(&my_ifr, &ifr, sizeof(my_ifr));
ifr.ifr_jid = jail_getid(jname);
if (ifr.ifr_jid < 0)
my_ifr.ifr_jid = jail_getid(jname);
if (my_ifr.ifr_jid < 0)
errx(1, "%s", jail_errmsg);
if (ioctl(s, SIOCSIFVNET, &ifr) < 0)
if (ioctl(s, SIOCSIFVNET, &my_ifr) < 0)
err(1, "SIOCSIFVNET");
}
@ -650,11 +663,11 @@ setifrvnet(const char *jname, int dummy __unused, int s,
struct ifreq my_ifr;
memcpy(&my_ifr, &ifr, sizeof(my_ifr));
ifr.ifr_jid = jail_getid(jname);
if (ifr.ifr_jid < 0)
my_ifr.ifr_jid = jail_getid(jname);
if (my_ifr.ifr_jid < 0)
errx(1, "%s", jail_errmsg);
if (ioctl(s, SIOCSIFRVNET, &ifr) < 0)
err(1, "SIOCSIFRVNET");
if (ioctl(s, SIOCSIFRVNET, &my_ifr) < 0)
err(1, "SIOCSIFRVNET(%d, %s)", my_ifr.ifr_jid, my_ifr.ifr_name);
}
static void