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📄 accf_data.c(1.95 KB)
📄 accf_dns.c(3.37 KB)
📄 accf_http.c(8.35 KB)
📁 cc
📄 dccp.h(2.48 KB)
📄 icmp6.h(26.97 KB)
📄 icmp_var.h(3.78 KB)
📄 if_ether.c(41.26 KB)
📄 if_ether.h(4.62 KB)
📄 igmp.c(98.93 KB)
📄 igmp.h(5.36 KB)
📄 igmp_var.h(8.69 KB)
📄 in.c(43.68 KB)
📄 in.h(25.81 KB)
📄 in_cksum.c(4.09 KB)
📄 in_debug.c(3.48 KB)
📄 in_fib.c(8.62 KB)
📄 in_fib.h(2.59 KB)
📄 in_fib_algo.c(18.68 KB)
📄 in_gif.c(11.76 KB)
📄 in_jail.c(10.31 KB)
📄 in_kdtrace.c(5.61 KB)
📄 in_kdtrace.h(3.31 KB)
📄 in_mcast.c(79.22 KB)
📄 in_pcb.c(90.89 KB)
📄 in_pcb.h(34.46 KB)
📄 in_pcbgroup.c(17.28 KB)
📄 in_prot.c(2.35 KB)
📄 in_proto.c(9.36 KB)
📄 in_rmx.c(4.99 KB)
📄 in_rss.c(11.27 KB)
📄 in_rss.h(2.42 KB)
📄 in_systm.h(2.57 KB)
📄 in_var.h(15.4 KB)
📄 ip.h(7.37 KB)
📄 ip6.h(8.93 KB)
📄 ip_carp.c(53.25 KB)
📄 ip_carp.h(6.79 KB)
📄 ip_divert.c(21.74 KB)
📄 ip_divert.h(2.32 KB)
📄 ip_dummynet.h(8.94 KB)
📄 ip_ecn.c(5.83 KB)
📄 ip_ecn.h(2.1 KB)
📄 ip_encap.c(10.59 KB)
📄 ip_encap.h(3.13 KB)
📄 ip_fastfwd.c(13.79 KB)
📄 ip_fw.h(34.29 KB)
📄 ip_gre.c(15.28 KB)
📄 ip_icmp.c(31.15 KB)
📄 ip_icmp.h(8.52 KB)
📄 ip_id.c(9.78 KB)
📄 ip_input.c(37.16 KB)
📄 ip_mroute.c(75.86 KB)
📄 ip_mroute.h(13.66 KB)
📄 ip_options.c(19.9 KB)
📄 ip_options.h(2.61 KB)
📄 ip_output.c(40.67 KB)
📄 ip_reass.c(22.42 KB)
📄 ip_var.h(11.48 KB)
📁 khelp
📁 libalias
📁 netdump
📄 pim.h(4.25 KB)
📄 pim_var.h(3.14 KB)
📄 raw_ip.c(28.58 KB)
📄 sctp.h(22.97 KB)
📄 sctp_asconf.c(100.05 KB)
📄 sctp_asconf.h(3.31 KB)
📄 sctp_auth.c(50.44 KB)
📄 sctp_auth.h(8.52 KB)
📄 sctp_bsd_addr.c(13.89 KB)
📄 sctp_bsd_addr.h(2.45 KB)
📄 sctp_cc_functions.c(68.75 KB)
📄 sctp_constants.h(34.12 KB)
📄 sctp_crc32.c(4.5 KB)
📄 sctp_crc32.h(2.07 KB)
📄 sctp_header.h(17.48 KB)
📄 sctp_indata.c(175.36 KB)
📄 sctp_indata.h(4.18 KB)
📄 sctp_input.c(183.57 KB)
📄 sctp_input.h(2.43 KB)
📄 sctp_kdtrace.c(7.51 KB)
📄 sctp_kdtrace.h(3.6 KB)
📄 sctp_lock_bsd.h(15.64 KB)
📄 sctp_module.c(5.16 KB)
📄 sctp_os.h(2.73 KB)
📄 sctp_os_bsd.h(15.04 KB)
📄 sctp_output.c(362.89 KB)
📄 sctp_output.h(6.38 KB)
📄 sctp_pcb.c(198.87 KB)
📄 sctp_pcb.h(19.31 KB)
📄 sctp_peeloff.c(5.74 KB)
📄 sctp_peeloff.h(2.05 KB)
📄 sctp_ss_functions.c(30.72 KB)
📄 sctp_structs.h(38.29 KB)
📄 sctp_syscalls.c(13.94 KB)
📄 sctp_sysctl.c(37.45 KB)
📄 sctp_sysctl.h(22.9 KB)
📄 sctp_timer.c(47.92 KB)
📄 sctp_timer.h(3.07 KB)
📄 sctp_uio.h(38.07 KB)
📄 sctp_usrreq.c(216.08 KB)
📄 sctp_var.h(12.21 KB)
📄 sctputil.c(212.13 KB)
📄 sctputil.h(11.69 KB)
📄 siftr.c(45.2 KB)
📄 tcp.h(18.3 KB)
📄 tcp_debug.c(5.9 KB)
📄 tcp_debug.h(2.65 KB)
📄 tcp_fastopen.c(37.98 KB)
📄 tcp_fastopen.h(3.7 KB)
📄 tcp_fsm.h(4.25 KB)
📄 tcp_hostcache.c(21.43 KB)
📄 tcp_hostcache.h(2.92 KB)
📄 tcp_hpts.c(57.55 KB)
📄 tcp_hpts.h(9.89 KB)
📄 tcp_input.c(115.95 KB)
📄 tcp_log_buf.c(76.37 KB)
📄 tcp_log_buf.h(14.88 KB)
📄 tcp_lro.c(36.38 KB)
📄 tcp_lro.h(4.43 KB)
📄 tcp_offload.c(5.48 KB)
📄 tcp_offload.h(2.09 KB)
📄 tcp_output.c(60.16 KB)
📄 tcp_pcap.c(12.67 KB)
📄 tcp_pcap.h(1.76 KB)
📄 tcp_ratelimit.c(43.8 KB)
📄 tcp_ratelimit.h(5.07 KB)
📄 tcp_reass.c(30.75 KB)
📄 tcp_sack.c(26.74 KB)
📄 tcp_seq.h(3.57 KB)
📁 tcp_stacks
📄 tcp_stats.c(8.47 KB)
📄 tcp_subr.c(92.74 KB)
📄 tcp_syncache.c(73 KB)
📄 tcp_syncache.h(5.16 KB)
📄 tcp_timer.c(31.04 KB)
📄 tcp_timer.h(9.29 KB)
📄 tcp_timewait.c(19.06 KB)
📄 tcp_usrreq.c(71.35 KB)
📄 tcp_var.h(43.48 KB)
📄 tcpip.h(2.29 KB)
📄 toecore.c(13.51 KB)
📄 toecore.h(5.13 KB)
📄 udp.h(2.49 KB)
📄 udp_usrreq.c(44.57 KB)
📄 udp_var.h(6.48 KB)
📄 udplite.h(1.91 KB)

Editing: in_rmx.c

/*-
 * Copyright 1994, 1995 Massachusetts Institute of Technology
 *
 * Permission to use, copy, modify, and distribute this software and
 * its documentation for any purpose and without fee is hereby
 * granted, provided that both the above copyright notice and this
 * permission notice appear in all copies, that both the above
 * copyright notice and this permission notice appear in all
 * supporting documentation, and that the name of M.I.T. not be used
 * in advertising or publicity pertaining to distribution of the
 * software without specific, written prior permission.  M.I.T. makes
 * no representations about the suitability of this software for any
 * purpose.  It is provided "as is" without express or implied
 * warranty.
 *
 * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''.  M.I.T. DISCLAIMS
 * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
 * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/sysctl.h>
#include <sys/socket.h>
#include <sys/mbuf.h>

#include <net/if.h>
#include <net/if_var.h>
#include <net/route.h>
#include <net/route/route_ctl.h>
#include <net/route/route_var.h>
#include <net/route/nhop.h>
#include <net/vnet.h>

#include <netinet/in.h>
#include <netinet/in_var.h>
#include <netinet/ip.h>
#include <netinet/ip_icmp.h>
#include <netinet/ip_var.h>

static int
rib4_preadd(u_int fibnum, const struct sockaddr *addr, const struct sockaddr *mask,
    struct nhop_object *nh)
{
	const struct sockaddr_in *addr4 = (const struct sockaddr_in *)addr;
	uint16_t nh_type;
	int rt_flags;

/* XXX: RTF_LOCAL && RTF_MULTICAST */

rt_flags = nhop_get_rtflags(nh);

if (rt_flags & RTF_HOST) {
		/*
		 * Backward compatibility:
		 * if the destination is broadcast,
		 * mark route as broadcast.
		 * This behavior was useful when route cloning
		 * was in place, so there was an explicit cloned
		 * route for every broadcasted address.
		 * Currently (2020-04) there is no kernel machinery
		 * to do route cloning, though someone might explicitly
		 * add these routes to support some cases with active-active
		 * load balancing. Given that, retain this support.
		 */
		if (in_broadcast(addr4->sin_addr, nh->nh_ifp)) {
			rt_flags |= RTF_BROADCAST;
			nhop_set_rtflags(nh, rt_flags);
			nh->nh_flags |= NHF_BROADCAST;
		}
	}

/*
	 * Check route MTU:
	 * inherit interface MTU if not set or
	 * check if MTU is too large.
	 */
	if (nh->nh_mtu == 0) {
		nh->nh_mtu = nh->nh_ifp->if_mtu;
	} else if (nh->nh_mtu > nh->nh_ifp->if_mtu)
		nh->nh_mtu = nh->nh_ifp->if_mtu;

/* Ensure that default route nhop has special flag */
	const struct sockaddr_in *mask4 = (const struct sockaddr_in *)mask;
	if ((rt_flags & RTF_HOST) == 0 && mask4 != NULL &&
	    mask4->sin_addr.s_addr == 0)
		nh->nh_flags |= NHF_DEFAULT;

/* Set nhop type to basic per-AF nhop */
	if (nhop_get_type(nh) == 0) {
		if (nh->nh_flags & NHF_GATEWAY)
			nh_type = NH_TYPE_IPV4_ETHER_NHOP;
		else
			nh_type = NH_TYPE_IPV4_ETHER_RSLV;

nhop_set_type(nh, nh_type);
	}

return (0);
}

/*
 * Initialize our routing tree.
 */
struct rib_head *
in_inithead(uint32_t fibnum)
{
	struct rib_head *rh;

rh = rt_table_init(32, AF_INET, fibnum);
	if (rh == NULL)
		return (NULL);

rh->rnh_preadd = rib4_preadd;

return (rh);
}

#ifdef VIMAGE
void
in_detachhead(struct rib_head *rh)
{

rt_table_destroy(rh);
}
#endif

/*
 * This zaps old routes when the interface goes down or interface
 * address is deleted.  In the latter case, it deletes static routes
 * that point to this address.  If we don't do this, we may end up
 * using the old address in the future.  The ones we always want to
 * get rid of are things like ARP entries, since the user might down
 * the interface, walk over to a completely different network, and
 * plug back in.
 */
struct in_ifadown_arg {
	struct ifaddr *ifa;
	int del;
};

static int
in_ifadownkill(const struct rtentry *rt, const struct nhop_object *nh,
    void *xap)
{
	struct in_ifadown_arg *ap = xap;

if (nh->nh_ifa != ap->ifa)
		return (0);

if ((nhop_get_rtflags(nh) & RTF_STATIC) != 0 && ap->del == 0)
		return (0);

return (1);
}

void
in_ifadown(struct ifaddr *ifa, int delete)
{
	struct in_ifadown_arg arg;

KASSERT(ifa->ifa_addr->sa_family == AF_INET,
	    ("%s: wrong family", __func__));

arg.ifa = ifa;
	arg.del = delete;

rib_foreach_table_walk_del(AF_INET, in_ifadownkill, &arg);
	ifa->ifa_flags &= ~IFA_ROUTE;		/* XXXlocking? */
}

003 File Manager

Editing: in_rmx.c

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