added rts/cts flow control

[unix-history] / usr / src / sys / net / if_loop.c

diff --git a/usr/src/sys/net/if_loop.c b/usr/src/sys/net/if_loop.c
index dca1d80..f0ada98 100644 (file)
--- a/usr/src/sys/net/if_loop.c
+++ b/usr/src/sys/net/if_loop.c
@@ -14,7 +14,7 @@
  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  *
  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  *

- *     @(#)if_loop.c   7.5 (Berkeley) %G%
+ *     @(#)if_loop.c   7.9 (Berkeley) %G%

  */
 
 /*
  */
 
 /*


@@ -29,10 +29,11 @@
 #include "ioctl.h"
 
 #include "../net/if.h"
 #include "ioctl.h"
 
 #include "../net/if.h"

+#include "../net/if_types.h"

 #include "../net/netisr.h"
 #include "../net/route.h"
 
 #include "../net/netisr.h"
 #include "../net/route.h"
 

-#include "../machine/mtpr.h"
+#include "machine/mtpr.h"

 
 #ifdef INET
 #include "../netinet/in.h"
 
 #ifdef INET
 #include "../netinet/in.h"


@@ -46,6 +47,11 @@
 #include "../netns/ns_if.h"
 #endif
 
 #include "../netns/ns_if.h"
 #endif
 

+#ifdef ISO
+#include "../netiso/iso.h"
+#include "../netiso/iso_var.h"
+#endif
+

 #define        LOMTU   (1024+512)
 
 struct ifnet loif;
 #define        LOMTU   (1024+512)
 
 struct ifnet loif;


@@ -60,6 +66,9 @@ loattach()
        ifp->if_flags = IFF_LOOPBACK;
        ifp->if_ioctl = loioctl;
        ifp->if_output = looutput;
        ifp->if_flags = IFF_LOOPBACK;
        ifp->if_ioctl = loioctl;
        ifp->if_output = looutput;

+       ifp->if_type = IFT_LOOP;
+       ifp->if_hdrlen = 0;
+       ifp->if_addrlen = 0;

        if_attach(ifp);
 }
 
        if_attach(ifp);
 }
 


@@ -78,18 +87,19 @@ looutput(ifp, m, dst)
        m->m_pkthdr.rcvif = ifp;
 
 {struct mbuf *mm; int mlen = 0;
        m->m_pkthdr.rcvif = ifp;
 
 {struct mbuf *mm; int mlen = 0;

-for (mm = m; m; m = m->m_next) /* XXX debugging code -- sklwoer */
+for (mm = m; m; m = m->m_next) /* XXX debugging code -- sklower */

     mlen += m->m_len;
 m = mm;
 if (mlen != m->m_pkthdr.len) {
        if (Loop_Sanity)
                m_freem(Loop_Sanity);
     mlen += m->m_len;
 m = mm;
 if (mlen != m->m_pkthdr.len) {
        if (Loop_Sanity)
                m_freem(Loop_Sanity);

-       Loop_Sanity = m_copy(m, 0, M_COPYALL);
+       Loop_Sanity = m_copy(m, 0, (int)M_COPYALL);

 }
 }
 
        s = splimp();
        ifp->if_opackets++;
 }
 }
 
        s = splimp();
        ifp->if_opackets++;

+       ifp->if_obytes += m->m_pkthdr.len;

        switch (dst->sa_family) {
 
 #ifdef INET
        switch (dst->sa_family) {
 
 #ifdef INET


@@ -117,6 +127,19 @@ if (mlen != m->m_pkthdr.len) {
                IF_ENQUEUE(ifq, m);
                schednetisr(NETISR_NS);
                break;
                IF_ENQUEUE(ifq, m);
                schednetisr(NETISR_NS);
                break;

+#endif
+#ifdef ISO
+       case AF_ISO:
+               ifq = &clnlintrq;
+               if (IF_QFULL(ifq)) {
+                       IF_DROP(ifq);
+                       m_freem(m);
+                       splx(s);
+                       return (ENOBUFS);
+               }
+               IF_ENQUEUE(ifq, m);
+               schednetisr(NETISR_ISO);
+               break;

 #endif
        default:
                splx(s);
 #endif
        default:
                splx(s);


@@ -126,6 +149,7 @@ if (mlen != m->m_pkthdr.len) {
                return (EAFNOSUPPORT);
        }
        ifp->if_ipackets++;
                return (EAFNOSUPPORT);
        }
        ifp->if_ipackets++;

+       ifp->if_ibytes += m->m_pkthdr.len;

        splx(s);
        return (0);
 }
        splx(s);
        return (0);
 }