diff options
| -rw-r--r-- | networking/route.c | 337 |
1 files changed, 174 insertions, 163 deletions
diff --git a/networking/route.c b/networking/route.c index 76e76b4b7..5c4ce8ca3 100644 --- a/networking/route.c +++ b/networking/route.c @@ -15,7 +15,7 @@ * Foundation; either version 2 of the License, or (at * your option) any later version. * - * $Id: route.c,v 1.17 2002/07/03 11:46:34 andersen Exp $ + * $Id: route.c,v 1.18 2002/08/22 18:24:43 bug1 Exp $ * * displayroute() code added by Vladimir N. Oleynik <dzo@simtreas.ru> * adjustments by Larry Doolittle <LRDoolittle@lbl.gov> @@ -28,7 +28,7 @@ #include "inet_common.h" #include <net/route.h> #include <net/if.h> -#include <linux/param.h> // HZ +#include <linux/param.h> /* HZ */ #include <stdio.h> #include <errno.h> #include <fcntl.h> @@ -56,13 +56,13 @@ #define E_INTERN 2 #define E_NOSUPP 1 -#if defined (SIOCADDRTOLD) || defined (RTF_IRTT) /* route */ +#if defined (SIOCADDRTOLD) || defined (RTF_IRTT) /* route */ #define HAVE_NEW_ADDRT 1 #endif -#ifdef RTF_IRTT /* route */ +#ifdef RTF_IRTT /* route */ #define HAVE_RTF_IRTT 1 #endif -#ifdef RTF_REJECT /* route */ +#ifdef RTF_REJECT /* route */ #define HAVE_RTF_REJECT 1 #endif @@ -78,8 +78,7 @@ /* add or delete a route depending on action */ -static int -INET_setroute(int action, int options, char **args) +static int INET_setroute(int action, int options, char **args) { struct rtentry rt; char target[128], gateway[128] = "NONE"; @@ -90,38 +89,40 @@ INET_setroute(int action, int options, char **args) xflag = 0; if (*args == NULL) - show_usage(); - if (strcmp(*args, "-net")==0) { + show_usage(); + if (strcmp(*args, "-net") == 0) { xflag = 1; args++; - } else if (strcmp(*args, "-host")==0) { + } else if (strcmp(*args, "-host") == 0) { xflag = 2; args++; } if (*args == NULL) - show_usage(); + show_usage(); safe_strncpy(target, *args++, (sizeof target)); /* Clean out the RTREQ structure. */ memset((char *) &rt, 0, sizeof(struct rtentry)); - if ((isnet = INET_resolve(target, (struct sockaddr_in *)&rt.rt_dst, xflag!=1)) < 0) { + if ((isnet = + INET_resolve(target, (struct sockaddr_in *) &rt.rt_dst, + xflag != 1)) < 0) { error_msg(_("can't resolve %s"), target); - return EXIT_FAILURE; /* XXX change to E_something */ + return EXIT_FAILURE; /* XXX change to E_something */ } switch (xflag) { - case 1: - isnet = 1; - break; + case 1: + isnet = 1; + break; - case 2: - isnet = 0; - break; + case 2: + isnet = 0; + break; - default: - break; + default: + break; } /* Fill in the other fields. */ @@ -130,7 +131,7 @@ INET_setroute(int action, int options, char **args) rt.rt_flags &= ~RTF_HOST; while (*args) { - if (strcmp(*args, "metric")==0) { + if (strcmp(*args, "metric") == 0) { int metric; args++; @@ -140,20 +141,22 @@ INET_setroute(int action, int options, char **args) #if HAVE_NEW_ADDRT rt.rt_metric = metric + 1; #else - ENOSUPP("inet_setroute", "NEW_ADDRT (metric)"); /* XXX Fixme */ + ENOSUPP("inet_setroute", "NEW_ADDRT (metric)"); /* XXX Fixme */ #endif args++; continue; } - if (strcmp(*args, "netmask")==0) { + if (strcmp(*args, "netmask") == 0) { struct sockaddr mask; args++; if (!*args || mask_in_addr(rt)) show_usage(); netmask = *args; - if ((isnet = INET_resolve(netmask, (struct sockaddr_in *)&mask, 0)) < 0) { + if ((isnet = + INET_resolve(netmask, (struct sockaddr_in *) &mask, + 0)) < 0) { error_msg(_("can't resolve netmask %s"), netmask); return E_LOOKUP; } @@ -162,21 +165,21 @@ INET_setroute(int action, int options, char **args) continue; } - if (strcmp(*args, "gw")==0 || strcmp(*args, "gateway")==0) { + if (strcmp(*args, "gw") == 0 || strcmp(*args, "gateway") == 0) { args++; if (!*args) show_usage(); if (rt.rt_flags & RTF_GATEWAY) show_usage(); safe_strncpy(gateway, *args, (sizeof gateway)); - if ((isnet = INET_resolve(gateway, (struct sockaddr_in *)&rt.rt_gateway, 1)) < 0) { + if ((isnet = + INET_resolve(gateway, (struct sockaddr_in *) &rt.rt_gateway, + 1)) < 0) { error_msg(_("can't resolve gw %s"), gateway); return E_LOOKUP; } if (isnet) { - error_msg( - _("%s: cannot use a NETWORK as gateway!"), - gateway); + error_msg(_("%s: cannot use a NETWORK as gateway!"), gateway); return E_OPTERR; } rt.rt_flags |= RTF_GATEWAY; @@ -184,7 +187,7 @@ INET_setroute(int action, int options, char **args) continue; } - if (strcmp(*args, "mss")==0) { + if (strcmp(*args, "mss") == 0) { args++; rt.rt_flags |= RTF_MSS; if (!*args) @@ -198,7 +201,7 @@ INET_setroute(int action, int options, char **args) continue; } - if (strcmp(*args, "window")==0) { + if (strcmp(*args, "window") == 0) { args++; if (!*args) show_usage(); @@ -212,7 +215,7 @@ INET_setroute(int action, int options, char **args) continue; } - if (strcmp(*args, "irtt")==0) { + if (strcmp(*args, "irtt") == 0) { args++; if (!*args) show_usage(); @@ -220,44 +223,44 @@ INET_setroute(int action, int options, char **args) #if HAVE_RTF_IRTT rt.rt_flags |= RTF_IRTT; rt.rt_irtt = atoi(*(args - 1)); - rt.rt_irtt *= (HZ / 100); /* FIXME */ -#if 0 /* FIXME: do we need to check anything of this? */ + rt.rt_irtt *= (HZ / 100); /* FIXME */ +#if 0 /* FIXME: do we need to check anything of this? */ if (rt.rt_irtt < 1 || rt.rt_irtt > (120 * HZ)) { error_msg(_("Invalid initial rtt.")); return E_OPTERR; } #endif #else - ENOSUPP("inet_setroute", "RTF_IRTT"); /* XXX Fixme */ + ENOSUPP("inet_setroute", "RTF_IRTT"); /* XXX Fixme */ #endif continue; } - if (strcmp(*args, "reject")==0) { + if (strcmp(*args, "reject") == 0) { args++; #if HAVE_RTF_REJECT rt.rt_flags |= RTF_REJECT; #else - ENOSUPP("inet_setroute", "RTF_REJECT"); /* XXX Fixme */ + ENOSUPP("inet_setroute", "RTF_REJECT"); /* XXX Fixme */ #endif continue; } - if (strcmp(*args, "mod")==0) { + if (strcmp(*args, "mod") == 0) { args++; rt.rt_flags |= RTF_MODIFIED; continue; } - if (strcmp(*args, "dyn")==0) { + if (strcmp(*args, "dyn") == 0) { args++; rt.rt_flags |= RTF_DYNAMIC; continue; } - if (strcmp(*args, "reinstate")==0) { + if (strcmp(*args, "reinstate") == 0) { args++; rt.rt_flags |= RTF_REINSTATE; continue; } - if (strcmp(*args, "device")==0 || strcmp(*args, "dev")==0) { + if (strcmp(*args, "device") == 0 || strcmp(*args, "dev") == 0) { args++; if (rt.rt_dev || *args == NULL) show_usage(); @@ -268,7 +271,7 @@ INET_setroute(int action, int options, char **args) if (!rt.rt_dev) { rt.rt_dev = *args++; if (*args) - show_usage(); /* must be last to catch typos */ + show_usage(); /* must be last to catch typos */ } else { show_usage(); } @@ -282,11 +285,11 @@ INET_setroute(int action, int options, char **args) /* sanity checks.. */ if (mask_in_addr(rt)) { unsigned long mask = mask_in_addr(rt); + mask = ~ntohl(mask); if ((rt.rt_flags & RTF_HOST) && mask != 0xffffffff) { - error_msg( - _("netmask %.8x doesn't make sense with host route"), - (unsigned int)mask); + error_msg(_("netmask %.8x doesn't make sense with host route"), + (unsigned int) mask); return E_OPTERR; } if (mask & (mask + 1)) { @@ -356,9 +359,9 @@ static int INET6_setroute(int action, int options, char **args) } else { prefix_len = 128; } - if (INET6_resolve(target, (struct sockaddr_in6 *)&sa6) < 0) { + if (INET6_resolve(target, (struct sockaddr_in6 *) &sa6) < 0) { error_msg(_("can't resolve %s"), target); - return EXIT_FAILURE; /* XXX change to E_something */ + return EXIT_FAILURE; /* XXX change to E_something */ } } @@ -392,12 +395,12 @@ static int INET6_setroute(int action, int options, char **args) if (rt.rtmsg_flags & RTF_GATEWAY) show_usage(); strcpy(gateway, *args); - if (INET6_resolve(gateway, (struct sockaddr_in6 *)&sa6) < 0) { + if (INET6_resolve(gateway, (struct sockaddr_in6 *) &sa6) < 0) { error_msg(_("can't resolve gw %s"), gateway); return (E_LOOKUP); } memcpy(&rt.rtmsg_gateway, sa6.sin6_addr.s6_addr, - sizeof(struct in6_addr)); + sizeof(struct in6_addr)); rt.rtmsg_flags |= RTF_GATEWAY; args++; continue; @@ -463,95 +466,98 @@ static int INET6_setroute(int action, int options, char **args) #ifndef RTF_UP /* Keep this in sync with /usr/src/linux/include/linux/route.h */ -#define RTF_UP 0x0001 /* route usable */ -#define RTF_GATEWAY 0x0002 /* destination is a gateway */ -#define RTF_HOST 0x0004 /* host entry (net otherwise) */ -#define RTF_REINSTATE 0x0008 /* reinstate route after tmout */ -#define RTF_DYNAMIC 0x0010 /* created dyn. (by redirect) */ -#define RTF_MODIFIED 0x0020 /* modified dyn. (by redirect) */ -#define RTF_MTU 0x0040 /* specific MTU for this route */ +#define RTF_UP 0x0001 /* route usable */ +#define RTF_GATEWAY 0x0002 /* destination is a gateway */ +#define RTF_HOST 0x0004 /* host entry (net otherwise) */ +#define RTF_REINSTATE 0x0008 /* reinstate route after tmout */ +#define RTF_DYNAMIC 0x0010 /* created dyn. (by redirect) */ +#define RTF_MODIFIED 0x0020 /* modified dyn. (by redirect) */ +#define RTF_MTU 0x0040 /* specific MTU for this route */ #ifndef RTF_MSS -#define RTF_MSS RTF_MTU /* Compatibility :-( */ +#define RTF_MSS RTF_MTU /* Compatibility :-( */ #endif -#define RTF_WINDOW 0x0080 /* per route window clamping */ -#define RTF_IRTT 0x0100 /* Initial round trip time */ -#define RTF_REJECT 0x0200 /* Reject route */ +#define RTF_WINDOW 0x0080 /* per route window clamping */ +#define RTF_IRTT 0x0100 /* Initial round trip time */ +#define RTF_REJECT 0x0200 /* Reject route */ #endif void displayroutes(int noresolve, int netstatfmt) { char buff[256]; - int nl = 0 ; + int nl = 0; struct in_addr dest; struct in_addr gw; struct in_addr mask; int flgs, ref, use, metric, mtu, win, ir; char flags[64]; - unsigned long int d,g,m; + unsigned long int d, g, m; char sdest[16], sgw[16]; FILE *fp = xfopen("/proc/net/route", "r"); - if(noresolve) + if (noresolve) noresolve = 0x0fff; - while( fgets(buff, sizeof(buff), fp) != NULL ) { - if(nl) { + while (fgets(buff, sizeof(buff), fp) != NULL) { + if (nl) { int ifl = 0; int numeric; struct sockaddr_in s_addr; - while(buff[ifl]!=' ' && buff[ifl]!='\t' && buff[ifl]!='\0') + while (buff[ifl] != ' ' && buff[ifl] != '\t' && buff[ifl] != '\0') ifl++; - buff[ifl]=0; /* interface */ - if(sscanf(buff+ifl+1, "%lx%lx%X%d%d%d%lx%d%d%d", - &d, &g, &flgs, &ref, &use, &metric, &m, &mtu, &win, &ir )!=10) { - error_msg_and_die( "Unsuported kernel route format\n"); + buff[ifl] = 0; /* interface */ + if (sscanf(buff + ifl + 1, "%lx%lx%X%d%d%d%lx%d%d%d", + &d, &g, &flgs, &ref, &use, &metric, &m, &mtu, &win, + &ir) != 10) { + error_msg_and_die("Unsuported kernel route format\n"); } - if(nl==1) { + if (nl == 1) { printf("Kernel IP routing table\n"); - printf("Destination Gateway Genmask Flags %s Iface\n", - netstatfmt ? " MSS Window irtt" : "Metric Ref Use"); + printf + ("Destination Gateway Genmask Flags %s Iface\n", + netstatfmt ? " MSS Window irtt" : "Metric Ref Use"); } - ifl = 0; /* parse flags */ - if(flgs&RTF_UP) { - if(flgs&RTF_REJECT) - flags[ifl++]='!'; - else - flags[ifl++]='U'; - if(flgs&RTF_GATEWAY) - flags[ifl++]='G'; - if(flgs&RTF_HOST) - flags[ifl++]='H'; - if(flgs&RTF_REINSTATE) - flags[ifl++]='R'; - if(flgs&RTF_DYNAMIC) - flags[ifl++]='D'; - if(flgs&RTF_MODIFIED) - flags[ifl++]='M'; - flags[ifl]=0; - dest.s_addr = d; - gw.s_addr = g; - mask.s_addr = m; + ifl = 0; /* parse flags */ + if (flgs & RTF_UP) { + if (flgs & RTF_REJECT) + flags[ifl++] = '!'; + else + flags[ifl++] = 'U'; + if (flgs & RTF_GATEWAY) + flags[ifl++] = 'G'; + if (flgs & RTF_HOST) + flags[ifl++] = 'H'; + if (flgs & RTF_REINSTATE) + flags[ifl++] = 'R'; + if (flgs & RTF_DYNAMIC) + flags[ifl++] = 'D'; + if (flgs & RTF_MODIFIED) + flags[ifl++] = 'M'; + flags[ifl] = 0; + dest.s_addr = d; + gw.s_addr = g; + mask.s_addr = m; memset(&s_addr, 0, sizeof(struct sockaddr_in)); s_addr.sin_family = AF_INET; s_addr.sin_addr = dest; - numeric = noresolve | 0x8000; /* default instead of * */ + numeric = noresolve | 0x8000; /* default instead of * */ INET_rresolve(sdest, sizeof(sdest), &s_addr, numeric, m); - numeric = noresolve | 0x4000; /* host instead of net */ + numeric = noresolve | 0x4000; /* host instead of net */ s_addr.sin_addr = gw; INET_rresolve(sgw, sizeof(sgw), &s_addr, numeric, m); - printf("%-16s%-16s%-16s%-6s", sdest, sgw, inet_ntoa(mask), flags); - if ( netstatfmt ) - printf("%5d %-5d %6d %s\n", mtu, win, ir, buff); - else - printf("%-6d %-2d %7d %s\n", metric, ref, use, buff); + printf("%-16s%-16s%-16s%-6s", sdest, sgw, inet_ntoa(mask), + flags); + if (netstatfmt) + printf("%5d %-5d %6d %s\n", mtu, win, ir, buff); + else + printf("%-6d %-2d %7d %s\n", metric, ref, use, buff); } - } + } nl++; - } + } } #if CONFIG_FEATURE_IPV6 @@ -567,72 +573,75 @@ static void INET6_displayroutes(int noresolve) char addr6p[8][5], saddr6p[8][5], naddr6p[8][5]; FILE *fp = xfopen("/proc/net/ipv6_route", "r"); - flags[0]='U'; - if(noresolve) + flags[0] = 'U'; + + if (noresolve) noresolve = 0x0fff; - numeric = noresolve | 0x8000; /* default instead of * */ + numeric = noresolve | 0x8000; /* default instead of * */ printf("Kernel IPv6 routing table\n" - "Destination " - "Next Hop " - "Flags Metric Ref Use Iface\n"); + "Destination " + "Next Hop " + "Flags Metric Ref Use Iface\n"); - while( fgets(buff, sizeof(buff), fp) != NULL ) { + while (fgets(buff, sizeof(buff), fp) != NULL) { int ifl; - if(sscanf(buff, "%4s%4s%4s%4s%4s%4s%4s%4s %02x " - "%4s%4s%4s%4s%4s%4s%4s%4s %02x " - "%4s%4s%4s%4s%4s%4s%4s%4s %08x %08x %08x %08x %s\n", - addr6p[0], addr6p[1], addr6p[2], addr6p[3], - addr6p[4], addr6p[5], addr6p[6], addr6p[7], - &prefix_len, - saddr6p[0], saddr6p[1], saddr6p[2], saddr6p[3], - saddr6p[4], saddr6p[5], saddr6p[6], saddr6p[7], - &slen, - naddr6p[0], naddr6p[1], naddr6p[2], naddr6p[3], - naddr6p[4], naddr6p[5], naddr6p[6], naddr6p[7], - &metric, &use, &refcnt, &iflags, iface)!=31) { - error_msg_and_die( "Unsuported kernel route format\n"); + if (sscanf(buff, "%4s%4s%4s%4s%4s%4s%4s%4s %02x " + "%4s%4s%4s%4s%4s%4s%4s%4s %02x " + "%4s%4s%4s%4s%4s%4s%4s%4s %08x %08x %08x %08x %s\n", + addr6p[0], addr6p[1], addr6p[2], addr6p[3], + addr6p[4], addr6p[5], addr6p[6], addr6p[7], + &prefix_len, + saddr6p[0], saddr6p[1], saddr6p[2], saddr6p[3], + saddr6p[4], saddr6p[5], saddr6p[6], saddr6p[7], + &slen, + naddr6p[0], naddr6p[1], naddr6p[2], naddr6p[3], + naddr6p[4], naddr6p[5], naddr6p[6], naddr6p[7], + &metric, &use, &refcnt, &iflags, iface) != 31) { + error_msg_and_die("Unsuported kernel route format\n"); } - ifl = 1; /* parse flags */ + ifl = 1; /* parse flags */ if (!(iflags & RTF_UP)) continue; if (iflags & RTF_GATEWAY) - flags[ifl++]='G'; + flags[ifl++] = 'G'; if (iflags & RTF_HOST) - flags[ifl++]='H'; + flags[ifl++] = 'H'; if (iflags & RTF_DEFAULT) - flags[ifl++]='D'; + flags[ifl++] = 'D'; if (iflags & RTF_ADDRCONF) - flags[ifl++]='A'; + flags[ifl++] = 'A'; if (iflags & RTF_CACHE) - flags[ifl++]='C'; - flags[ifl]=0; + flags[ifl++] = 'C'; + flags[ifl] = 0; /* Fetch and resolve the target address. */ snprintf(addr6, sizeof(addr6), "%s:%s:%s:%s:%s:%s:%s:%s", - addr6p[0], addr6p[1], addr6p[2], addr6p[3], - addr6p[4], addr6p[5], addr6p[6], addr6p[7]); + addr6p[0], addr6p[1], addr6p[2], addr6p[3], + addr6p[4], addr6p[5], addr6p[6], addr6p[7]); inet_pton(AF_INET6, addr6, (struct sockaddr *) &saddr6.sin6_addr); - saddr6.sin6_family=AF_INET6; + saddr6.sin6_family = AF_INET6; - INET6_rresolve(addr6, sizeof(addr6), (struct sockaddr_in6 *) &saddr6, numeric); + INET6_rresolve(addr6, sizeof(addr6), (struct sockaddr_in6 *) &saddr6, + numeric); snprintf(addr6, sizeof(addr6), "%s/%d", addr6, prefix_len); /* Fetch and resolve the nexthop address. */ snprintf(naddr6, sizeof(naddr6), "%s:%s:%s:%s:%s:%s:%s:%s", - naddr6p[0], naddr6p[1], naddr6p[2], naddr6p[3], - naddr6p[4], naddr6p[5], naddr6p[6], naddr6p[7]); + naddr6p[0], naddr6p[1], naddr6p[2], naddr6p[3], + naddr6p[4], naddr6p[5], naddr6p[6], naddr6p[7]); inet_pton(AF_INET6, naddr6, (struct sockaddr *) &snaddr6.sin6_addr); - snaddr6.sin6_family=AF_INET6; + snaddr6.sin6_family = AF_INET6; - INET6_rresolve(naddr6, sizeof(naddr6), (struct sockaddr_in6 *) &snaddr6, numeric); + INET6_rresolve(naddr6, sizeof(naddr6), + (struct sockaddr_in6 *) &snaddr6, numeric); /* Print the info. */ printf("%-43s %-39s %-5s %-6d %-2d %7d %-8s\n", - addr6, naddr6, flags, metric, refcnt, use, iface); + addr6, naddr6, flags, metric, refcnt, use, iface); } } #endif @@ -641,56 +650,58 @@ int route_main(int argc, char **argv) { int opt; int what = 0; + #if CONFIG_FEATURE_IPV6 - int af=AF_INET; + int af = AF_INET; #endif - if ( !argv [1] || ( argv [1][0] == '-' )) { + if (!argv[1] || (argv[1][0] == '-')) { /* check options */ int noresolve = 0; int extended = 0; - + while ((opt = getopt(argc, argv, "A:ne")) > 0) { switch (opt) { - case 'n': - noresolve = 1; - break; - case 'e': - extended = 1; - break; - case 'A': + case 'n': + noresolve = 1; + break; + case 'e': + extended = 1; + break; + case 'A': #if CONFIG_FEATURE_IPV6 - if (strcmp(optarg, "inet6")==0) - af=AF_INET6; - break; + if (strcmp(optarg, "inet6") == 0) + af = AF_INET6; + break; #endif - default: - show_usage ( ); + default: + show_usage(); } } - + #if CONFIG_FEATURE_IPV6 - if (af==AF_INET6) + if (af == AF_INET6) INET6_displayroutes(*argv != NULL); else #endif - displayroutes ( noresolve, extended ); + displayroutes(noresolve, extended); return EXIT_SUCCESS; } else { /* check verb */ - if (strcmp( argv [1], "add")==0) + if (strcmp(argv[1], "add") == 0) what = RTACTION_ADD; - else if (strcmp( argv [1], "del")==0 || strcmp( argv [1], "delete")==0) + else if (strcmp(argv[1], "del") == 0 + || strcmp(argv[1], "delete") == 0) what = RTACTION_DEL; - else if (strcmp( argv [1], "flush")==0) + else if (strcmp(argv[1], "flush") == 0) what = RTACTION_FLUSH; else show_usage(); } #if CONFIG_FEATURE_IPV6 - if (af==AF_INET6) - return INET6_setroute(what, 0, argv+2); + if (af == AF_INET6) + return INET6_setroute(what, 0, argv + 2); #endif - return INET_setroute(what, 0, argv+2 ); + return INET_setroute(what, 0, argv + 2); } |