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authpf: Start using libpfctl

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Use pfctl_kill_states() rather than the DIOCKILLSTATES ioctl directly.

MFC after:	1 week
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D30057
This commit is contained in:
Kristof Provost 2021-04-30 10:26:52 +02:00
parent 2a00c4db93
commit 2b2ed4a697
2 changed files with 20 additions and 18 deletions
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35
contrib/pf/authpf/authpf.c
View file

@ -36,6 +36,7 @@ __FBSDID("$FreeBSD$");
#ifdef __FreeBSD__
#include <inttypes.h>
#endif
#include <libpfctl.h>
#include <login_cap.h>
#include <pwd.h>
#include <grp.h>
@ -889,37 +890,37 @@ change_table(int add, const char *ip_src)
static void
authpf_kill_states(void)
{
struct pfioc_state_kill psk;
struct pfctl_kill kill;
struct pf_addr target;
memset(&psk, 0, sizeof(psk));
memset(&kill, 0, sizeof(kill));
memset(&target, 0, sizeof(target));
if (inet_pton(AF_INET, ipsrc, &target.v4) == 1)
psk.psk_af = AF_INET;
kill.af = AF_INET;
else if (inet_pton(AF_INET6, ipsrc, &target.v6) == 1)
psk.psk_af = AF_INET6;
kill.af = AF_INET6;
else {
syslog(LOG_ERR, "inet_pton(%s) failed", ipsrc);
return;
}
/* Kill all states from ipsrc */
memcpy(&psk.psk_src.addr.v.a.addr, &target,
sizeof(psk.psk_src.addr.v.a.addr));
memset(&psk.psk_src.addr.v.a.mask, 0xff,
sizeof(psk.psk_src.addr.v.a.mask));
if (ioctl(dev, DIOCKILLSTATES, &psk))
syslog(LOG_ERR, "DIOCKILLSTATES failed (%m)");
memcpy(&kill.src.addr.v.a.addr, &target,
sizeof(kill.src.addr.v.a.addr));
memset(&kill.src.addr.v.a.mask, 0xff,
sizeof(kill.src.addr.v.a.mask));
if (pfctl_kill_states(dev, &kill, NULL))
syslog(LOG_ERR, "pfctl_kill_states() failed (%m)");
/* Kill all states to ipsrc */
memset(&psk.psk_src, 0, sizeof(psk.psk_src));
memcpy(&psk.psk_dst.addr.v.a.addr, &target,
sizeof(psk.psk_dst.addr.v.a.addr));
memset(&psk.psk_dst.addr.v.a.mask, 0xff,
sizeof(psk.psk_dst.addr.v.a.mask));
if (ioctl(dev, DIOCKILLSTATES, &psk))
syslog(LOG_ERR, "DIOCKILLSTATES failed (%m)");
memset(&kill.src, 0, sizeof(kill.src));
memcpy(&kill.dst.addr.v.a.addr, &target,
sizeof(kill.dst.addr.v.a.addr));
memset(&kill.dst.addr.v.a.mask, 0xff,
sizeof(kill.dst.addr.v.a.mask));
if (pfctl_kill_states(dev, &kill, NULL))
syslog(LOG_ERR, "pfctl_kill_states() failed (%m)");
}
/* signal handler that makes us go away properly */

3
usr.sbin/authpf/Makefile
View file

@ -12,8 +12,9 @@ SRCS= authpf.c
# XXX ALTQ:
CFLAGS+= -DENABLE_ALTQ
CFLAGS+= -I${SRCTOP}/lib/libpfctl -I${OBJTOP}/lib/libpfctl
LIBADD= m util
LIBADD= m util pfctl
WARNS?= 3