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https://git.FreeBSD.org/src.git
synced 2024-10-19 02:29:40 +00:00
- add support for IPX (tested with mount -t nwfs and mars_nwe),
IP fast forwarding, SIOCGIFADDR, setting hardware address (not currently enabled in cm driver), multicasts (experimental) - add ARC_MAX_DATA, use IF_HANDOFF, remove arc_sprintf() and some unused variables - if_simloop logic is made more similar to ethernet - drop not ours packets early (if we are not in promiscous mode) Submitted by: mark tinguely (partially)
This commit is contained in:
Max Khon
parent
9a03c49d6c
commit
6cdcc15976
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=109771
@ -44,7 +44,7 @@
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/* #define CMSOFTCOPY */
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#define CMRETRANSMIT /**/
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#undef CM_DEBUG
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/* #define CM_DEBUG */
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#include <sys/param.h>
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#include <sys/systm.h>
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@ -346,7 +346,7 @@ cm_attach(sc, unit)
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#endif
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}
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if_printf(ifp, "link addr 0x%02x(%d)\n", linkaddress, linkaddress);
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if_printf(ifp, "link addr 0x%02x (%d)\n", linkaddress, linkaddress);
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return 0;
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}
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@ -531,7 +531,7 @@ cm_start(ifp)
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if (m->m_len < 2)
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m = m_pullup(m, 2);
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#endif
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cm_ram_ptr = buffer*512;
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cm_ram_ptr = buffer * 512;
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if (m == 0)
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return;
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@ -666,7 +666,7 @@ cm_srint(vsc)
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* (2*sizeof(ulong) - CM_HDRNEWLEN)), packet type dependent.
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*/
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cm_ram_ptr = buffer*512;
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cm_ram_ptr = buffer * 512;
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offset = GETMEM(cm_ram_ptr + 2);
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if (offset)
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len = 256 - offset;
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@ -844,7 +844,7 @@ cmintr(arg)
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return;
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do {
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#if defined(CM_DEBUG) && (CM_DEBUG>1)
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#if defined(CM_DEBUG) && (CM_DEBUG > 1)
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if_printf(ifp, "intr: status 0x%02x, intmask 0x%02x\n",
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isr, sc->sc_intmask);
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#endif
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@ -905,7 +905,7 @@ cmintr(arg)
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buffer = sc->sc_rx_act;
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/* look if buffer is marked invalid: */
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if (GETMEM(buffer*512) == 0) {
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if (GETMEM(buffer * 512) == 0) {
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/*
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* invalid marked buffer (or illegally
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* configured sender)
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@ -959,7 +959,7 @@ cmintr(arg)
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isr = GETREG(CMSTAT);
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maskedisr = isr & sc->sc_intmask;
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} while (maskedisr);
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#if defined(CM_DEBUG) && (CM_DEBUG>1)
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#if defined(CM_DEBUG) && (CM_DEBUG > 1)
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if_printf(ifp, "intr (exit): status 0x%02x, intmask 0x%02x\n",
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isr, sc->sc_intmask);
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#endif
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@ -1008,6 +1008,7 @@ cm_ioctl(ifp, command, data)
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switch (command) {
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case SIOCSIFADDR:
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case SIOCGIFADDR:
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case SIOCADDMULTI:
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case SIOCDELMULTI:
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case SIOCSIFMTU:
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@ -4,7 +4,7 @@
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KMOD= arcnet
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SRCS= if_arcsubr.c
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SRCS+= opt_inet.h opt_inet6.h
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SRCS+= opt_inet.h opt_inet6.h opt_ipx.h
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EXPORT_SYMS= arc_frag_init \
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arc_frag_next \
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@ -19,4 +19,7 @@ EXPORT_SYMS= arc_frag_init \
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opt_inet.h opt_inet6.h:
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echo "#define INET 1" > ${.TARGET}
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opt_ipx.h:
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echo "#define IPX 1" > ${.TARGET}
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.include <bsd.kmod.mk>
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@ -1950,6 +1950,8 @@ if_setlladdr(struct ifnet *ifp, const u_char *lladdr, int len)
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case IFT_ISO88025:
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case IFT_L2VLAN:
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bcopy(lladdr, ((struct arpcom *)ifp->if_softc)->ac_enaddr, len);
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/* FALLTHROUGH */
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case IFT_ARCNET:
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bcopy(lladdr, LLADDR(sdl), len);
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break;
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default:
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@ -77,12 +77,12 @@ struct arc_header {
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#define ARC_HDRNEWLEN 6
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#define ARC_HDRNEWLEN_EXC 10
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/* these lengths are data link layer length - 2*ARC_ADDR_LEN */
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/* these lengths are data link layer length - 2 * ARC_ADDR_LEN */
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#define ARC_MIN_LEN 1
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#define ARC_MIN_FORBID_LEN 254
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#define ARC_MAX_FORBID_LEN 256
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#define ARC_MAX_LEN 508
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#define ARC_MAX_DATA 504
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/* RFC 1051 */
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#define ARCTYPE_IP_OLD 240 /* IP protocol */
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@ -134,7 +134,6 @@ extern int arc_ipmtu; /* XXX new ip only, no RFC 1051! */
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void arc_ifattach(struct ifnet *, u_int8_t);
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void arc_ifdetach(struct ifnet *);
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void arc_storelladdr(struct ifnet *, u_int8_t);
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char *arc_sprintf(u_int8_t *);
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int arc_isphds(int);
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void arc_input(struct ifnet *, struct mbuf *);
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int arc_output(struct ifnet *, struct mbuf *,
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@ -40,6 +40,7 @@
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*/
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#include "opt_inet.h"
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#include "opt_inet6.h"
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#include "opt_ipx.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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@ -73,16 +74,24 @@
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#include <netinet6/nd6.h>
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#endif
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#ifdef IPX
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#include <netipx/ipx.h>
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#include <netipx/ipx_if.h>
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#endif
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MODULE_VERSION(arcnet, 1);
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#define ARCNET_ALLOW_BROKEN_ARP
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static struct mbuf *arc_defrag(struct ifnet *, struct mbuf *);
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static int arc_resolvemulti(struct ifnet *, struct sockaddr **,
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struct sockaddr *);
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u_int8_t arcbroadcastaddr = 0;
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#define senderr(e) { error = (e); goto bad;}
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#define SIN(s) ((struct sockaddr_in *)s)
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#define SIN(s) ((struct sockaddr_in *)s)
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#define SIPX(s) ((struct sockaddr_ipx *)s)
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/*
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* ARCnet output routine.
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@ -96,23 +105,18 @@ arc_output(ifp, m, dst, rt0)
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struct sockaddr *dst;
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struct rtentry *rt0;
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{
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struct mbuf *mcopy;
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struct rtentry *rt;
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struct arccom *ac;
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struct arc_header *ah;
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struct arphdr *arph;
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int error;
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u_int8_t atype, adst;
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#if __FreeBSD_version < 500000
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int s;
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#endif
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int loop_copy = 0;
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if ((ifp->if_flags & (IFF_UP|IFF_RUNNING)) != (IFF_UP|IFF_RUNNING))
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return(ENETDOWN); /* m, m1 aren't initialized yet */
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error = 0;
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ac = (struct arccom *)ifp;
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mcopy = NULL;
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if ((rt = rt0)) {
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if ((rt->rt_flags & RTF_UP) == 0) {
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@ -151,10 +155,6 @@ arc_output(ifp, m, dst, rt0)
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else if (!arpresolve(ifp, rt, m, dst, &adst, rt0))
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return 0; /* not resolved yet */
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/* If broadcasting on a simplex interface, loopback a copy */
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if ((m->m_flags & (M_BCAST|M_MCAST)) &&
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(ifp->if_flags & IFF_SIMPLEX))
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mcopy = m_copy(m, 0, (int)M_COPYALL);
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atype = (ifp->if_flags & IFF_LINK0) ?
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ARCTYPE_IP_OLD : ARCTYPE_IP;
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break;
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@ -171,8 +171,17 @@ arc_output(ifp, m, dst, rt0)
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atype = ARCTYPE_INET6;
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break;
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#endif
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#ifdef IPX
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case AF_IPX:
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adst = SIPX(dst)->sipx_addr.x_host.c_host[5];
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atype = ARCTYPE_IPX;
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if (adst == 0xff)
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adst = arcbroadcastaddr;
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break;
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#endif
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case AF_UNSPEC:
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loop_copy = -1;
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ah = (struct arc_header *)dst->sa_data;
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adst = ah->arc_dhost;
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atype = ah->arc_type;
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@ -188,9 +197,8 @@ arc_output(ifp, m, dst, rt0)
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* However, e.g., AmiTCP 3.0Beta used it... we make this
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* switchable for emergency cases. Not perfect, but...
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*/
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arph = mtod(m, struct arphdr *);
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if (ifp->if_flags & IFF_LINK2)
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arph->ar_pro = atype - 1;
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mtod(m, struct arphdr *)->ar_pro = atype - 1;
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#endif
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}
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break;
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@ -200,9 +208,6 @@ arc_output(ifp, m, dst, rt0)
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senderr(EAFNOSUPPORT);
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}
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if (mcopy)
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(void) if_simloop(ifp, mcopy, dst->sa_family, 0);
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M_PREPEND(m, ARC_HDRLEN, M_NOWAIT);
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if (m == 0)
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senderr(ENOBUFS);
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@ -211,31 +216,23 @@ arc_output(ifp, m, dst, rt0)
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ah->arc_dhost = adst;
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ah->arc_shost = *IF_LLADDR(ifp);
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if ((ifp->if_flags & IFF_SIMPLEX) && (loop_copy != -1)) {
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if ((m->m_flags & M_BCAST) || (loop_copy > 0)) {
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struct mbuf *n = m_copy(m, 0, (int)M_COPYALL);
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(void) if_simloop(ifp, n, dst->sa_family, ARC_HDRLEN);
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} else if (ah->arc_dhost == ah->arc_shost) {
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(void) if_simloop(ifp, m, dst->sa_family, ARC_HDRLEN);
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return (0); /* XXX */
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}
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}
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BPF_MTAP(ifp, m);
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#if __FreeBSD_version < 500000
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s = splimp();
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/*
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* Queue message on interface, and start output if interface
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* not yet active.
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*/
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if (IF_QFULL(&ifp->if_snd)) {
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IF_DROP(&ifp->if_snd);
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splx(s);
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senderr(ENOBUFS);
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}
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ifp->if_obytes += m->m_pkthdr.len;
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IF_ENQUEUE(&ifp->if_snd, m);
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if ((ifp->if_flags & IFF_OACTIVE) == 0)
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(*ifp->if_start)(ifp);
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splx(s);
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#else
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if (!IF_HANDOFF(&ifp->if_snd, m, ifp)) {
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m = 0;
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senderr(ENOBUFS);
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}
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#endif
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return (error);
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@ -277,7 +274,7 @@ arc_frag_next(ifp)
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return m;
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++ac->ac_seqid; /* make the seqid unique */
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tfrags = (m->m_pkthdr.len + 503) / 504;
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tfrags = (m->m_pkthdr.len + ARC_MAX_DATA - 1) / ARC_MAX_DATA;
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ac->fsflag = 2 * tfrags - 3;
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ac->sflag = 0;
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ac->rsflag = ac->fsflag;
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@ -292,7 +289,7 @@ arc_frag_next(ifp)
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/* split out next fragment and return it */
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if (ac->sflag < ac->fsflag) {
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/* we CAN'T have short packets here */
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ac->curr_frag = m_split(m, 504, M_NOWAIT);
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ac->curr_frag = m_split(m, ARC_MAX_DATA, M_NOWAIT);
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if (ac->curr_frag == 0) {
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m_freem(m);
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return 0;
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@ -523,12 +520,6 @@ arc_input(ifp, m)
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struct arc_header *ah;
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struct ifqueue *inq;
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u_int8_t atype;
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#ifdef INET
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struct arphdr *arph;
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#endif
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#if __FreeBSD_version < 500000
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int s;
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#endif
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if ((ifp->if_flags & IFF_UP) == 0) {
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m_freem(m);
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@ -543,10 +534,17 @@ arc_input(ifp, m)
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BPF_MTAP(ifp, m);
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ah = mtod(m, struct arc_header *);
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/* does this belong to us? */
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if ((ifp->if_flags & IFF_PROMISC) != 0
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&& ah->arc_dhost != arcbroadcastaddr
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&& ah->arc_dhost != *IF_LLADDR(ifp)) {
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m_freem(m);
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return;
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}
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ifp->if_ibytes += m->m_pkthdr.len;
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if (arcbroadcastaddr == ah->arc_dhost) {
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if (ah->arc_dhost == arcbroadcastaddr) {
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m->m_flags |= M_BCAST|M_MCAST;
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ifp->if_imcasts++;
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}
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@ -556,12 +554,16 @@ arc_input(ifp, m)
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#ifdef INET
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case ARCTYPE_IP:
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m_adj(m, ARC_HDRNEWLEN);
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if (ipflow_fastforward(m))
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return;
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schednetisr(NETISR_IP);
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inq = &ipintrq;
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break;
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case ARCTYPE_IP_OLD:
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m_adj(m, ARC_HDRLEN);
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if (ipflow_fastforward(m))
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return;
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schednetisr(NETISR_IP);
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inq = &ipintrq;
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break;
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@ -589,7 +591,6 @@ arc_input(ifp, m)
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m_adj(m, ARC_HDRLEN);
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schednetisr(NETISR_ARP);
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inq = &arpintrq;
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arph = mtod(m, struct arphdr *);
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#ifdef ARCNET_ALLOW_BROKEN_ARP
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mtod(m, struct arphdr *)->ar_pro = htons(ETHERTYPE_IP);
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#endif
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@ -601,40 +602,20 @@ arc_input(ifp, m)
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schednetisr(NETISR_IPV6);
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inq = &ip6intrq;
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break;
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#endif
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#ifdef IPX
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case ARCTYPE_IPX:
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m_adj(m, ARC_HDRNEWLEN);
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schednetisr(NETISR_IPX);
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inq = &ipxintrq;
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break;
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#endif
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default:
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m_freem(m);
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return;
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}
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#if __FreeBSD_version < 500000
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s = splimp();
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if (IF_QFULL(inq)) {
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IF_DROP(inq);
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m_freem(m);
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} else
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IF_ENQUEUE(inq, m);
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splx(s);
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#else
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IF_HANDOFF(inq, m, NULL);
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#endif
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}
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/*
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* Convert Arcnet address to printable (loggable) representation.
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*/
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static char digits[] = "0123456789abcdef";
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char *
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arc_sprintf(ap)
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u_int8_t *ap;
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{
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static char arcbuf[3];
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char *cp = arcbuf;
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*cp++ = digits[*ap >> 4];
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*cp++ = digits[*ap++ & 0xf];
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*cp = 0;
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return (arcbuf);
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}
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/*
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@ -665,6 +646,7 @@ arc_ifattach(ifp, lla)
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ifp->if_addrlen = 1;
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ifp->if_hdrlen = ARC_HDRLEN;
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ifp->if_mtu = 1500;
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ifp->if_resolvemulti = arc_resolvemulti;
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if (ifp->if_baudrate == 0)
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ifp->if_baudrate = 2500000;
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#if __FreeBSD_version < 500000
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@ -721,6 +703,26 @@ arc_ioctl(ifp, command, data)
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ifp->if_init(ifp->if_softc); /* before arpwhohas */
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arp_ifinit(ifp, ifa);
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break;
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#endif
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#ifdef IPX
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/*
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* XXX This code is probably wrong
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*/
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case AF_IPX:
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{
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struct ipx_addr *ina = &(IA_SIPX(ifa)->sipx_addr);
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if (ipx_nullhost(*ina))
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ina->x_host.c_host[5] = *IF_LLADDR(ifp);
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else
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arc_storelladdr(ifp, ina->x_host.c_host[5]);
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/*
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* Set new address
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*/
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ifp->if_init(ifp->if_softc);
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break;
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}
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#endif
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default:
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ifp->if_init(ifp->if_softc);
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@ -728,6 +730,16 @@ arc_ioctl(ifp, command, data)
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}
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break;
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case SIOCGIFADDR:
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{
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struct sockaddr *sa;
|
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sa = (struct sockaddr *) &ifr->ifr_data;
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bcopy(IF_LLADDR(ifp),
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(caddr_t) sa->sa_data, ARC_ADDR_LEN);
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}
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break;
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|
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case SIOCADDMULTI:
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case SIOCDELMULTI:
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if (ifr == NULL)
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@ -757,19 +769,82 @@ arc_ioctl(ifp, command, data)
|
||||
else
|
||||
ifp->if_mtu = ifr->ifr_mtu;
|
||||
break;
|
||||
|
||||
#if 0
|
||||
case SIOCGIFADDR:
|
||||
{
|
||||
struct sockaddr *sa;
|
||||
|
||||
sa = (struct sockaddr *) & ifr->ifr_data;
|
||||
bcopy(IFP2AC(ifp)->ac_enaddr,
|
||||
(caddr_t) sa->sa_data, ETHER_ADDR_LEN);
|
||||
}
|
||||
break;
|
||||
#endif
|
||||
}
|
||||
|
||||
return (error);
|
||||
}
|
||||
|
||||
/* based on ether_resolvemulti() */
|
||||
int
|
||||
arc_resolvemulti(ifp, llsa, sa)
|
||||
struct ifnet *ifp;
|
||||
struct sockaddr **llsa;
|
||||
struct sockaddr *sa;
|
||||
{
|
||||
struct sockaddr_dl *sdl;
|
||||
struct sockaddr_in *sin;
|
||||
#ifdef INET6
|
||||
struct sockaddr_in6 *sin6;
|
||||
#endif
|
||||
|
||||
switch(sa->sa_family) {
|
||||
case AF_LINK:
|
||||
/*
|
||||
* No mapping needed. Just check that it's a valid MC address.
|
||||
*/
|
||||
sdl = (struct sockaddr_dl *)sa;
|
||||
if (*LLADDR(sdl) != arcbroadcastaddr)
|
||||
return EADDRNOTAVAIL;
|
||||
*llsa = 0;
|
||||
return 0;
|
||||
#ifdef INET
|
||||
case AF_INET:
|
||||
sin = (struct sockaddr_in *)sa;
|
||||
if (!IN_MULTICAST(ntohl(sin->sin_addr.s_addr)))
|
||||
return EADDRNOTAVAIL;
|
||||
MALLOC(sdl, struct sockaddr_dl *, sizeof *sdl, M_IFMADDR,
|
||||
M_ZERO);
|
||||
sdl->sdl_len = sizeof *sdl;
|
||||
sdl->sdl_family = AF_LINK;
|
||||
sdl->sdl_index = ifp->if_index;
|
||||
sdl->sdl_type = IFT_ARCNET;
|
||||
sdl->sdl_alen = ARC_ADDR_LEN;
|
||||
*LLADDR(sdl) = 0;
|
||||
*llsa = (struct sockaddr *)sdl;
|
||||
return 0;
|
||||
#endif
|
||||
#ifdef INET6
|
||||
case AF_INET6:
|
||||
sin6 = (struct sockaddr_in6 *)sa;
|
||||
if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
|
||||
/*
|
||||
* An IP6 address of 0 means listen to all
|
||||
* of the Ethernet multicast address used for IP6.
|
||||
* (This is used for multicast routers.)
|
||||
*/
|
||||
ifp->if_flags |= IFF_ALLMULTI;
|
||||
*llsa = 0;
|
||||
return 0;
|
||||
}
|
||||
if (!IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr))
|
||||
return EADDRNOTAVAIL;
|
||||
MALLOC(sdl, struct sockaddr_dl *, sizeof *sdl, M_IFMADDR,
|
||||
M_ZERO);
|
||||
sdl->sdl_len = sizeof *sdl;
|
||||
sdl->sdl_family = AF_LINK;
|
||||
sdl->sdl_index = ifp->if_index;
|
||||
sdl->sdl_type = IFT_ARCNET;
|
||||
sdl->sdl_alen = ARC_ADDR_LEN;
|
||||
*LLADDR(sdl) = 0;
|
||||
*llsa = (struct sockaddr *)sdl;
|
||||
return 0;
|
||||
#endif
|
||||
|
||||
default:
|
||||
/*
|
||||
* Well, the text isn't quite right, but it's the name
|
||||
* that counts...
|
||||
*/
|
||||
return EAFNOSUPPORT;
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user