Author: melifaro
Date: Sun Jul 19 09:29:27 2020
New Revision: 363319
URL: https://svnweb.freebsd.org/changeset/base/363319

Log:
  Transition from rtrequest1_fib() to rib_action().
  
  Remove all variations of rtrequest <rtrequest1_fib, rtrequest_fib,
   in6_rtrequest, rtrequest_fib> and their uses and switch to
  to rib_action(). This is part of the new routing KPI.
  
  Submitted by: Neel Chauhan <neel AT neelc DOT org>
  Differential Revision:        https://reviews.freebsd.org/D25546

Modified:
  head/sys/fs/nfsclient/nfs_clvfsops.c
  head/sys/net/if.c
  head/sys/net/route.c
  head/sys/net/route.h
  head/sys/netinet6/in6_rmx.c
  head/sys/netinet6/in6_var.h
  head/sys/netinet6/nd6.c
  head/sys/netinet6/nd6_rtr.c

Modified: head/sys/fs/nfsclient/nfs_clvfsops.c
==============================================================================
--- head/sys/fs/nfsclient/nfs_clvfsops.c        Sun Jul 19 06:59:09 2020        
(r363318)
+++ head/sys/fs/nfsclient/nfs_clvfsops.c        Sun Jul 19 09:29:27 2020        
(r363319)
@@ -68,6 +68,7 @@ __FBSDID("$FreeBSD$");
 
 #include <net/if.h>
 #include <net/route.h>
+#include <net/route/route_ctl.h>
 #include <netinet/in.h>
 
 #include <fs/nfs/nfsport.h>
@@ -466,6 +467,8 @@ nfs_mountroot(struct mount *mp)
            nd->mygateway.sin_addr.s_addr != 0) {
                struct sockaddr_in mask, sin;
                struct epoch_tracker et;
+               struct rt_addrinfo info;
+               struct rib_cmd_info rc;
 
                bzero((caddr_t)&mask, sizeof(mask));
                sin = mask;
@@ -474,10 +477,14 @@ nfs_mountroot(struct mount *mp)
                 /* XXX MRT use table 0 for this sort of thing */
                NET_EPOCH_ENTER(et);
                CURVNET_SET(TD_TO_VNET(td));
-               error = rtrequest_fib(RTM_ADD, (struct sockaddr *)&sin,
-                   (struct sockaddr *)&nd->mygateway,
-                   (struct sockaddr *)&mask,
-                   RTF_UP | RTF_GATEWAY, NULL, RT_DEFAULT_FIB);
+
+               bzero((caddr_t)&info, sizeof(info));
+               info.rti_flags = RTF_UP | RTF_GATEWAY;
+               info.rti_info[RTAX_DST] = (struct sockaddr *)&sin;
+               info.rti_info[RTAX_GATEWAY] = (struct sockaddr *)&nd->mygateway;
+               info.rti_info[RTAX_NETMASK] = (struct sockaddr *)&mask;
+
+               error = rib_action(RT_DEFAULT_FIB, RTM_ADD, &info, &rc);
                CURVNET_RESTORE();
                NET_EPOCH_EXIT(et);
                if (error)

Modified: head/sys/net/if.c
==============================================================================
--- head/sys/net/if.c   Sun Jul 19 06:59:09 2020        (r363318)
+++ head/sys/net/if.c   Sun Jul 19 09:29:27 2020        (r363319)
@@ -80,6 +80,7 @@
 #include <net/if_vlan_var.h>
 #include <net/radix.h>
 #include <net/route.h>
+#include <net/route/route_ctl.h>
 #include <net/vnet.h>
 
 #if defined(INET) || defined(INET6)
@@ -1845,6 +1846,7 @@ static int
 ifa_maintain_loopback_route(int cmd, const char *otype, struct ifaddr *ifa,
     struct sockaddr *ia)
 {
+       struct rib_cmd_info rc;
        struct epoch_tracker et;
        int error;
        struct rt_addrinfo info;
@@ -1872,7 +1874,7 @@ ifa_maintain_loopback_route(int cmd, const char *otype
        info.rti_info[RTAX_GATEWAY] = (struct sockaddr *)&null_sdl;
        link_init_sdl(ifp, (struct sockaddr *)&null_sdl, ifp->if_type);
 
-       error = rtrequest1_fib(cmd, &info, NULL, ifp->if_fib);
+       error = rib_action(ifp->if_fib, cmd, &info, &rc);
        NET_EPOCH_EXIT(et);
 
        if (rti_ifa != NULL)

Modified: head/sys/net/route.c
==============================================================================
--- head/sys/net/route.c        Sun Jul 19 06:59:09 2020        (r363318)
+++ head/sys/net/route.c        Sun Jul 19 09:29:27 2020        (r363319)
@@ -470,7 +470,7 @@ int
 rib_add_redirect(u_int fibnum, struct sockaddr *dst, struct sockaddr *gateway,
     struct sockaddr *author, struct ifnet *ifp, int flags, int lifetime_sec)
 {
-       struct rtentry *rt;
+       struct rib_cmd_info rc;
        int error;
        struct rt_addrinfo info;
        struct rt_metrics rti_rmx;
@@ -504,7 +504,7 @@ rib_add_redirect(u_int fibnum, struct sockaddr *dst, s
        info.rti_mflags |= RTV_EXPIRE;
        info.rti_rmx = &rti_rmx;
 
-       error = rtrequest1_fib(RTM_ADD, &info, &rt, fibnum);
+       error = rib_action(fibnum, RTM_ADD, &info, &rc);
        ifa_free(ifa);
 
        if (error != 0) {
@@ -512,9 +512,9 @@ rib_add_redirect(u_int fibnum, struct sockaddr *dst, s
                return (error);
        }
 
-       RT_LOCK(rt);
-       flags = rt->rt_flags;
-       RT_UNLOCK(rt);
+       RT_LOCK(rc.rc_rt);
+       flags = rc.rc_rt->rt_flags;
+       RT_UNLOCK(rc.rc_rt);
 
        RTSTAT_INC(rts_dynamic);
 
@@ -602,33 +602,7 @@ ifa_ifwithroute(int flags, const struct sockaddr *dst,
        return (ifa);
 }
 
-/*
- * Do appropriate manipulations of a routing tree given
- * all the bits of info needed
- */
-int
-rtrequest_fib(int req,
-       struct sockaddr *dst,
-       struct sockaddr *gateway,
-       struct sockaddr *netmask,
-       int flags,
-       struct rtentry **ret_nrt,
-       u_int fibnum)
-{
-       struct rt_addrinfo info;
 
-       if (dst->sa_len == 0)
-               return(EINVAL);
-
-       bzero((caddr_t)&info, sizeof(info));
-       info.rti_flags = flags;
-       info.rti_info[RTAX_DST] = dst;
-       info.rti_info[RTAX_GATEWAY] = gateway;
-       info.rti_info[RTAX_NETMASK] = netmask;
-       return rtrequest1_fib(req, &info, ret_nrt, fibnum);
-}
-
-
 /*
  * Copy most of @rt data into @info.
  *
@@ -1148,73 +1122,6 @@ rt_mpath_unlink(struct rib_head *rnh, struct rt_addrin
 }
 #endif
 
-int
-rtrequest1_fib(int req, struct rt_addrinfo *info, struct rtentry **ret_nrt,
-                               u_int fibnum)
-{
-       const struct sockaddr *dst;
-       struct rib_head *rnh;
-       struct rib_cmd_info rc;
-       int error;
-
-       KASSERT((fibnum < rt_numfibs), ("rtrequest1_fib: bad fibnum"));
-       KASSERT((info->rti_flags & RTF_RNH_LOCKED) == 0, ("rtrequest1_fib: 
locked"));
-       NET_EPOCH_ASSERT();
-
-       dst = info->rti_info[RTAX_DST];
-
-       switch (dst->sa_family) {
-       case AF_INET6:
-       case AF_INET:
-               /* We support multiple FIBs. */
-               break;
-       default:
-               fibnum = RT_DEFAULT_FIB;
-               break;
-       }
-
-       /*
-        * Find the correct routing tree to use for this Address Family
-        */
-       rnh = rt_tables_get_rnh(fibnum, dst->sa_family);
-       if (rnh == NULL)
-               return (EAFNOSUPPORT);
-
-       /*
-        * If we are adding a host route then we don't want to put
-        * a netmask in the tree, nor do we want to clone it.
-        */
-       if (info->rti_flags & RTF_HOST)
-               info->rti_info[RTAX_NETMASK] = NULL;
-
-       bzero(&rc, sizeof(struct rib_cmd_info));
-       error = 0;
-       switch (req) {
-       case RTM_DELETE:
-               error = del_route(rnh, info, &rc);
-               break;
-       case RTM_RESOLVE:
-               /*
-                * resolve was only used for route cloning
-                * here for compat
-                */
-               break;
-       case RTM_ADD:
-               error = add_route(rnh, info, &rc);
-               break;
-       case RTM_CHANGE:
-               error = change_route(rnh, info, &rc);
-               break;
-       default:
-               error = EOPNOTSUPP;
-       }
-
-       if (ret_nrt != NULL)
-               *ret_nrt = rc.rc_rt;
-
-       return (error);
-}
-
 void
 rt_setmetrics(const struct rt_addrinfo *info, struct rtentry *rt)
 {
@@ -1258,7 +1165,7 @@ rtinit1(struct ifaddr *ifa, int cmd, int flags, int fi
        struct epoch_tracker et;
        struct sockaddr *dst;
        struct sockaddr *netmask;
-       struct rtentry *rt = NULL;
+       struct rib_cmd_info rc;
        struct rt_addrinfo info;
        int error = 0;
        int startfib, endfib;
@@ -1349,7 +1256,7 @@ rtinit1(struct ifaddr *ifa, int cmd, int flags, int fi
                                if (rn == NULL) 
                                        error = ESRCH;
                                else {
-                                       rt = RNTORT(rn);
+                                       struct rtentry *rt = RNTORT(rn);
                                        /*
                                         * for interface route the gateway
                                         * gateway is sockaddr_dl, so
@@ -1389,14 +1296,14 @@ rtinit1(struct ifaddr *ifa, int cmd, int flags, int fi
                        info.rti_info[RTAX_GATEWAY] = ifa->ifa_addr;
                info.rti_info[RTAX_NETMASK] = netmask;
                NET_EPOCH_ENTER(et);
-               error = rtrequest1_fib(cmd, &info, &rt, fibnum);
-               if (error == 0 && rt != NULL) {
+               error = rib_action(fibnum, cmd, &info, &rc);
+               if (error == 0 && rc.rc_rt != NULL) {
                        /*
                         * notify any listening routing agents of the change
                         */
 
                        /* TODO: interface routes/aliases */
-                       rt_newaddrmsg_fib(cmd, ifa, rt, fibnum);
+                       rt_newaddrmsg_fib(cmd, ifa, rc.rc_rt, fibnum);
                        didwork = 1;
                }
                NET_EPOCH_EXIT(et);

Modified: head/sys/net/route.h
==============================================================================
--- head/sys/net/route.h        Sun Jul 19 06:59:09 2020        (r363318)
+++ head/sys/net/route.h        Sun Jul 19 09:29:27 2020        (r363319)
@@ -411,9 +411,6 @@ int  rtinit(struct ifaddr *, int, int);
  * but this will change.. 
  */
 int     rtioctl_fib(u_long, caddr_t, u_int);
-int     rtrequest_fib(int, struct sockaddr *,
-           struct sockaddr *, struct sockaddr *, int, struct rtentry **, 
u_int);
-int     rtrequest1_fib(int, struct rt_addrinfo *, struct rtentry **, u_int);
 int    rib_lookup_info(uint32_t, const struct sockaddr *, uint32_t, uint32_t,
            struct rt_addrinfo *);
 void   rib_free_info(struct rt_addrinfo *info);

Modified: head/sys/netinet6/in6_rmx.c
==============================================================================
--- head/sys/netinet6/in6_rmx.c Sun Jul 19 06:59:09 2020        (r363318)
+++ head/sys/netinet6/in6_rmx.c Sun Jul 19 09:29:27 2020        (r363319)
@@ -185,14 +185,3 @@ in6_detachhead(void **head, int off)
 }
 #endif
 
-/*
- * Extended API for IPv6 FIB support.
- */
-int
-in6_rtrequest(int req, struct sockaddr *dst, struct sockaddr *gw,
-    struct sockaddr *mask, int flags, struct rtentry **ret_nrt, u_int fibnum)
-{
-
-       return (rtrequest_fib(req, dst, gw, mask, flags, ret_nrt, fibnum));
-}
-

Modified: head/sys/netinet6/in6_var.h
==============================================================================
--- head/sys/netinet6/in6_var.h Sun Jul 19 06:59:09 2020        (r363318)
+++ head/sys/netinet6/in6_var.h Sun Jul 19 09:29:27 2020        (r363319)
@@ -915,8 +915,6 @@ void        in6_newaddrmsg(struct in6_ifaddr *, int);
  * Extended API for IPv6 FIB support.
  */
 struct mbuf *ip6_tryforward(struct mbuf *);
-int    in6_rtrequest(int, struct sockaddr *, struct sockaddr *,
-           struct sockaddr *, int, struct rtentry **, u_int);
 #endif /* _KERNEL */
 
 #endif /* _NETINET6_IN6_VAR_H_ */

Modified: head/sys/netinet6/nd6.c
==============================================================================
--- head/sys/netinet6/nd6.c     Sun Jul 19 06:59:09 2020        (r363318)
+++ head/sys/netinet6/nd6.c     Sun Jul 19 09:29:27 2020        (r363319)
@@ -1564,6 +1564,7 @@ nd6_free_redirect(const struct llentry *ln)
        int fibnum;
        struct sockaddr_in6 sin6;
        struct rt_addrinfo info;
+       struct rib_cmd_info rc;
        struct epoch_tracker et;
 
        lltable_fill_sa_entry(ln, (struct sockaddr *)&sin6);
@@ -1573,7 +1574,7 @@ nd6_free_redirect(const struct llentry *ln)
 
        NET_EPOCH_ENTER(et);
        for (fibnum = 0; fibnum < rt_numfibs; fibnum++)
-               rtrequest1_fib(RTM_DELETE, &info, NULL, fibnum);
+               rib_action(fibnum, RTM_DELETE, &info, &rc);
        NET_EPOCH_EXIT(et);
 }
 

Modified: head/sys/netinet6/nd6_rtr.c
==============================================================================
--- head/sys/netinet6/nd6_rtr.c Sun Jul 19 06:59:09 2020        (r363318)
+++ head/sys/netinet6/nd6_rtr.c Sun Jul 19 09:29:27 2020        (r363319)
@@ -674,7 +674,8 @@ static void
 defrouter_addreq(struct nd_defrouter *new)
 {
        struct sockaddr_in6 def, mask, gate;
-       struct rtentry *newrt = NULL;
+       struct rt_addrinfo info;
+       struct rib_cmd_info rc;
        unsigned int fibnum;
        int error;
 
@@ -688,11 +689,16 @@ defrouter_addreq(struct nd_defrouter *new)
        gate.sin6_addr = new->rtaddr;
        fibnum = new->ifp->if_fib;
 
-       error = in6_rtrequest(RTM_ADD, (struct sockaddr *)&def,
-           (struct sockaddr *)&gate, (struct sockaddr *)&mask,
-           RTF_GATEWAY, &newrt, fibnum);
-       if (newrt != NULL)
-               rt_routemsg(RTM_ADD, newrt, new->ifp, 0, fibnum);
+       bzero((caddr_t)&info, sizeof(info));
+       info.rti_flags = RTF_GATEWAY;
+       info.rti_info[RTAX_DST] = (struct sockaddr *)&def;
+       info.rti_info[RTAX_GATEWAY] = (struct sockaddr *)&gate;
+       info.rti_info[RTAX_NETMASK] = (struct sockaddr *)&mask;
+
+       NET_EPOCH_ASSERT();
+       error = rib_action(fibnum, RTM_ADD, &info, &rc);
+       if (rc.rc_rt != NULL)
+               rt_routemsg(RTM_ADD, rc.rc_rt, new->ifp, 0, fibnum);
        if (error == 0)
                new->installed = 1;
 }
@@ -706,7 +712,8 @@ static void
 defrouter_delreq(struct nd_defrouter *dr)
 {
        struct sockaddr_in6 def, mask, gate;
-       struct rtentry *oldrt = NULL;
+       struct rt_addrinfo info;
+       struct rib_cmd_info rc;
        struct epoch_tracker et;
        unsigned int fibnum;
 
@@ -720,12 +727,16 @@ defrouter_delreq(struct nd_defrouter *dr)
        gate.sin6_addr = dr->rtaddr;
        fibnum = dr->ifp->if_fib;
 
+       bzero((caddr_t)&info, sizeof(info));
+       info.rti_flags = RTF_GATEWAY;
+       info.rti_info[RTAX_DST] = (struct sockaddr *)&def;
+       info.rti_info[RTAX_GATEWAY] = (struct sockaddr *)&gate;
+       info.rti_info[RTAX_NETMASK] = (struct sockaddr *)&mask;
+
        NET_EPOCH_ENTER(et);
-       in6_rtrequest(RTM_DELETE, (struct sockaddr *)&def,
-           (struct sockaddr *)&gate,
-           (struct sockaddr *)&mask, RTF_GATEWAY, &oldrt, fibnum);
-       if (oldrt != NULL)
-               rt_routemsg(RTM_DELETE, oldrt, dr->ifp, 0, fibnum);
+       rib_action(fibnum, RTM_DELETE, &info, &rc);
+       if (rc.rc_rt != NULL)
+               rt_routemsg(RTM_DELETE, rc.rc_rt, dr->ifp, 0, fibnum);
        NET_EPOCH_EXIT(et);
 
        dr->installed = 0;
@@ -2009,7 +2020,6 @@ static int
 nd6_prefix_onlink_rtrequest(struct nd_prefix *pr, struct ifaddr *ifa)
 {
        struct sockaddr_dl_short sdl;
-       struct rtentry *rt;
        struct sockaddr_in6 mask6;
        u_long rtflags;
        int error, a_failure, fibnum, maxfib;
@@ -2034,11 +2044,17 @@ nd6_prefix_onlink_rtrequest(struct nd_prefix *pr, stru
        }
        a_failure = 0;
        for (; fibnum < maxfib; fibnum++) {
+               struct rt_addrinfo info;
+               struct rib_cmd_info rc;
 
-               rt = NULL;
-               error = in6_rtrequest(RTM_ADD,
-                   (struct sockaddr *)&pr->ndpr_prefix, (struct sockaddr 
*)&sdl,
-                   (struct sockaddr *)&mask6, rtflags, &rt, fibnum);
+               bzero((caddr_t)&info, sizeof(info));
+               info.rti_flags = rtflags;
+               info.rti_info[RTAX_DST] = (struct sockaddr *)&pr->ndpr_prefix;
+               info.rti_info[RTAX_GATEWAY] = (struct sockaddr *)&sdl;
+               info.rti_info[RTAX_NETMASK] = (struct sockaddr *)&mask6;
+
+               NET_EPOCH_ASSERT();
+               error = rib_action(fibnum, RTM_ADD, &info, &rc);
                if (error != 0) {
                        char ip6buf[INET6_ADDRSTRLEN];
                        char ip6bufg[INET6_ADDRSTRLEN];
@@ -2061,7 +2077,7 @@ nd6_prefix_onlink_rtrequest(struct nd_prefix *pr, stru
                }
 
                pr->ndpr_stateflags |= NDPRF_ONLINK;
-               rt_routemsg(RTM_ADD, rt, pr->ndpr_ifp, 0, fibnum);
+               rt_routemsg(RTM_ADD, rc.rc_rt, pr->ndpr_ifp, 0, fibnum);
        }
 
        /* Return the last error we got. */
@@ -2158,7 +2174,6 @@ nd6_prefix_offlink(struct nd_prefix *pr)
        struct ifnet *ifp = pr->ndpr_ifp;
        struct nd_prefix *opr;
        struct sockaddr_in6 sa6, mask6;
-       struct rtentry *rt;
        char ip6buf[INET6_ADDRSTRLEN];
        uint64_t genid;
        int fibnum, maxfib, a_failure;
@@ -2191,9 +2206,17 @@ nd6_prefix_offlink(struct nd_prefix *pr)
        a_failure = 0;
        NET_EPOCH_ENTER(et);
        for (; fibnum < maxfib; fibnum++) {
-               rt = NULL;
-               error = in6_rtrequest(RTM_DELETE, (struct sockaddr *)&sa6, NULL,
-                   (struct sockaddr *)&mask6, 0, &rt, fibnum);
+               struct rt_addrinfo info;
+               struct rib_cmd_info rc;
+
+               bzero((caddr_t)&info, sizeof(info));
+               info.rti_flags = RTF_GATEWAY;
+               info.rti_info[RTAX_DST] = (struct sockaddr *)&sa6;
+               info.rti_info[RTAX_GATEWAY] = NULL;
+               info.rti_info[RTAX_NETMASK] = (struct sockaddr *)&mask6;
+
+               NET_EPOCH_ASSERT();
+               error = rib_action(fibnum, RTM_DELETE, &info, &rc);
                if (error != 0) {
                        /* Save last error to return, see rtinit(). */
                        a_failure = error;
@@ -2201,7 +2224,7 @@ nd6_prefix_offlink(struct nd_prefix *pr)
                }
 
                /* report route deletion to the routing socket. */
-               rt_routemsg(RTM_DELETE, rt, ifp, 0, fibnum);
+               rt_routemsg(RTM_DELETE, rc.rc_rt, ifp, 0, fibnum);
        }
        NET_EPOCH_EXIT(et);
        error = a_failure;
_______________________________________________
svn-src-head@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/svn-src-head
To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"

Reply via email to