projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 72c68388 | 1 | /* if.c 4.7 82/02/03 */ |
| 1bfd8df7 BJ |
2 | |
| 3 | #include "../h/param.h" | |
| 4 | #include "../h/systm.h" | |
| 8a13b737 BJ |
5 | #include "../net/in.h" |
| 6 | #include "../net/in_systm.h" | |
| 1bfd8df7 BJ |
7 | #include "../net/if.h" |
| 8 | ||
| 85ce71f2 BJ |
9 | ifinit() |
| 10 | { | |
| 11 | register struct ifnet *ifp; | |
| 12 | ||
| 13 | for (ifp = ifnet; ifp; ifp = ifp->if_next) | |
| 14 | if (ifp->if_init) | |
| 15 | (*ifp->if_init)(); | |
| 16 | } | |
| 17 | ||
| 18 | ifubareset(uban) | |
| 19 | int uban; | |
| 20 | { | |
| 21 | register struct ifnet *ifp; | |
| 22 | ||
| 23 | for (ifp = ifnet; ifp; ifp = ifp->if_next) | |
| 24 | if (ifp->if_ubareset) | |
| 25 | (*ifp->if_ubareset)(uban); | |
| 26 | } | |
| 27 | ||
| 405c9168 BJ |
28 | if_attach(ifp) |
| 29 | struct ifnet *ifp; | |
| 30 | { | |
| 31 | ||
| 32 | COUNT(IF_ATTACH); | |
| 33 | ifp->if_next = ifnet; | |
| 34 | ifnet = ifp; | |
| 35 | } | |
| 36 | ||
| 4ad99bae BJ |
37 | /*ARGSUSED*/ |
| 38 | struct ifnet * | |
| 1bfd8df7 BJ |
39 | if_ifwithaddr(in) |
| 40 | struct in_addr in; | |
| 41 | { | |
| 42 | register struct ifnet *ifp; | |
| 43 | ||
| 4ad99bae | 44 | COUNT(IF_IFWITHADDR); |
| 1bfd8df7 BJ |
45 | for (ifp = ifnet; ifp; ifp = ifp->if_next) |
| 46 | if (ifp->if_addr.s_addr == in.s_addr) | |
| 47 | break; | |
| 1bfd8df7 BJ |
48 | return (ifp); |
| 49 | } | |
| 50 | ||
| 4ad99bae BJ |
51 | /*ARGSUSED*/ |
| 52 | struct ifnet * | |
| 1bfd8df7 BJ |
53 | if_ifonnetof(in) |
| 54 | struct in_addr in; | |
| 55 | { | |
| 56 | register struct ifnet *ifp; | |
| 1bfd8df7 BJ |
57 | int net; |
| 58 | ||
| 4ad99bae | 59 | COUNT(IF_IFONNETOF); |
| 8a13b737 | 60 | net = in.s_net; /* XXX */ |
| 1bfd8df7 BJ |
61 | for (ifp = ifnet; ifp; ifp = ifp->if_next) |
| 62 | if (ifp->if_net == net) | |
| 63 | break; | |
| 1bfd8df7 BJ |
64 | return (ifp); |
| 65 | } | |
| 66 | ||
| f1b2fa5b | 67 | /*ARGSUSED*/ |
| 8a13b737 BJ |
68 | struct ifnet * |
| 69 | if_gatewayfor(addr) | |
| 70 | struct in_addr addr; | |
| 71 | { | |
| 72 | ||
| 73 | COUNT(IF_GATEWAYFOR); | |
| 74 | return (0); | |
| 75 | } | |
| f1b2fa5b BJ |
76 | |
| 77 | struct in_addr | |
| 78 | if_makeaddr(net, host) | |
| 79 | int net, host; | |
| 80 | { | |
| 81 | u_long addr; | |
| 82 | ||
| 83 | if (net < 128) | |
| 85ce71f2 | 84 | addr = (net << 24) | host; |
| f1b2fa5b | 85 | else if (net < 65536) |
| 85ce71f2 | 86 | addr = (net << 16) | host; |
| f1b2fa5b | 87 | else |
| 85ce71f2 | 88 | addr = (net << 8) | host; |
| 72c68388 | 89 | #ifdef vax |
| f1b2fa5b | 90 | addr = htonl(addr); |
| 72c68388 | 91 | #endif |
| f1b2fa5b BJ |
92 | return (*(struct in_addr *)&addr); |
| 93 | } |