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https://github.com/freebsd/freebsd-src
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Remove obsoleted KPIs that were used to access interface address lists.
This commit is contained in:
Gleb Smirnoff
parent
38e1a6585b
commit
19e09f447f
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=353868
4
UPDATING
4
UPDATING
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@ -26,6 +26,10 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 13.x IS SLOW:
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disable the most expensive debugging functionality run
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"ln -s 'abort:false,junk:false' /etc/malloc.conf".)
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20191021:
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KPIs for network drivers to access interface addresses have changed.
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Users need to recompile NIC driver modules together with kernel.
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20191021:
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The net.link.tap.user_open sysctl no longer prevents user opening of
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already created /dev/tapNN devices. Access is still controlled by
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105
sys/net/if.c
105
sys/net/if.c
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@ -1767,40 +1767,6 @@ if_data_copy(struct ifnet *ifp, struct if_data *ifd)
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ifd->ifi_noproto = ifp->if_get_counter(ifp, IFCOUNTER_NOPROTO);
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}
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/*
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* Wrapper functions for struct ifnet address list locking macros. These are
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* used by kernel modules to avoid encoding programming interface or binary
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* interface assumptions that may be violated when kernel-internal locking
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* approaches change.
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*/
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void
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if_addr_rlock(struct ifnet *ifp)
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{
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epoch_enter_preempt(net_epoch_preempt, curthread->td_et);
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}
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void
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if_addr_runlock(struct ifnet *ifp)
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{
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epoch_exit_preempt(net_epoch_preempt, curthread->td_et);
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}
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void
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if_maddr_rlock(if_t ifp)
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{
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epoch_enter_preempt(net_epoch_preempt, curthread->td_et);
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}
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void
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if_maddr_runlock(if_t ifp)
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{
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epoch_exit_preempt(net_epoch_preempt, curthread->td_et);
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}
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/*
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* Initialization, destruction and refcounting functions for ifaddrs.
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*/
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@ -4405,77 +4371,6 @@ if_input(if_t ifp, struct mbuf* sendmp)
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}
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/* XXX */
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#ifndef ETH_ADDR_LEN
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#define ETH_ADDR_LEN 6
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#endif
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int
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if_setupmultiaddr(if_t ifp, void *mta, int *cnt, int max)
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{
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struct ifmultiaddr *ifma;
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uint8_t *lmta = (uint8_t *)mta;
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int mcnt = 0;
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CK_STAILQ_FOREACH(ifma, &((struct ifnet *)ifp)->if_multiaddrs, ifma_link) {
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if (ifma->ifma_addr->sa_family != AF_LINK)
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continue;
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if (mcnt == max)
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break;
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bcopy(LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
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&lmta[mcnt * ETH_ADDR_LEN], ETH_ADDR_LEN);
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mcnt++;
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}
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*cnt = mcnt;
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return (0);
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}
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int
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if_multiaddr_array(if_t ifp, void *mta, int *cnt, int max)
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{
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int error;
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if_maddr_rlock(ifp);
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error = if_setupmultiaddr(ifp, mta, cnt, max);
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if_maddr_runlock(ifp);
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return (error);
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}
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int
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if_multiaddr_count(if_t ifp, int max)
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{
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struct ifmultiaddr *ifma;
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int count;
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count = 0;
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if_maddr_rlock(ifp);
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CK_STAILQ_FOREACH(ifma, &((struct ifnet *)ifp)->if_multiaddrs, ifma_link) {
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if (ifma->ifma_addr->sa_family != AF_LINK)
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continue;
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count++;
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if (count == max)
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break;
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}
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if_maddr_runlock(ifp);
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return (count);
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}
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int
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if_multi_apply(struct ifnet *ifp, int (*filter)(void *, struct ifmultiaddr *, int), void *arg)
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{
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struct ifmultiaddr *ifma;
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int cnt = 0;
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if_maddr_rlock(ifp);
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CK_STAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link)
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cnt += filter(arg, ifma, cnt);
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if_maddr_runlock(ifp);
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return (cnt);
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}
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struct mbuf *
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if_dequeue(if_t ifp)
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{
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@ -449,16 +449,6 @@ struct ifnet {
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#define NET_EPOCH_WAIT() epoch_wait_preempt(net_epoch_preempt)
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#define NET_EPOCH_ASSERT() MPASS(in_epoch(net_epoch_preempt))
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/*
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* Function variations on locking macros intended to be used by loadable
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* kernel modules in order to divorce them from the internals of address list
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* locking.
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*/
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void if_addr_rlock(struct ifnet *ifp); /* if_addrhead */
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void if_addr_runlock(struct ifnet *ifp); /* if_addrhead */
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void if_maddr_rlock(if_t ifp); /* if_multiaddrs */
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void if_maddr_runlock(if_t ifp); /* if_multiaddrs */
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#ifdef _KERNEL
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/* interface link layer address change event */
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typedef void (*iflladdr_event_handler_t)(void *, struct ifnet *);
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@ -773,12 +763,6 @@ u_int if_foreach_lladdr(if_t, iflladdr_cb_t, void *);
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u_int if_foreach_llmaddr(if_t, iflladdr_cb_t, void *);
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u_int if_lladdr_count(if_t);
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u_int if_llmaddr_count(if_t);
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int if_multiaddr_count(if_t ifp, int max);
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/* Obsoleted multicast management functions. */
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int if_setupmultiaddr(if_t ifp, void *mta, int *cnt, int max);
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int if_multiaddr_array(if_t ifp, void *mta, int *cnt, int max);
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int if_multi_apply(struct ifnet *ifp, int (*filter)(void *, struct ifmultiaddr *, int), void *arg);
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int if_getamcount(if_t ifp);
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struct ifaddr * if_getifaddr(if_t ifp);
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@ -60,7 +60,7 @@
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* in the range 5 to 9.
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*/
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#undef __FreeBSD_version
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#define __FreeBSD_version 1300053 /* Master, propagated to newvers */
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#define __FreeBSD_version 1300054 /* Master, propagated to newvers */
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/*
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* __FreeBSD_kernel__ indicates that this system uses the kernel of FreeBSD,
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