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authorEric Andersen <andersen@codepoet.org>2003-01-27 17:41:19 +0000
committerEric Andersen <andersen@codepoet.org>2003-01-27 17:41:19 +0000
commit66a3af9d7c83e6b649caec4b6dd0cb252ddf76f1 (patch)
treef9e264e3e3a687505070dd8707eb29f35ad97234
parent22237017a7abee1bc6c664c255a783e9dfe2b037 (diff)
downloadbusybox-66a3af9d7c83e6b649caec4b6dd0cb252ddf76f1.tar.gz
This seems sufficient for ifup and ifdown to actually work
as advertised. Works for me (at least with glibc)
-rw-r--r--networking/ifupdown.c90
-rw-r--r--networking/libiproute/ip_parse_common_args.c2
-rw-r--r--networking/libiproute/ipaddress.c2
3 files changed, 59 insertions, 35 deletions
diff --git a/networking/ifupdown.c b/networking/ifupdown.c
index f33dbc43c..fcedfd0cf 100644
--- a/networking/ifupdown.c
+++ b/networking/ifupdown.c
@@ -107,6 +107,33 @@ static char no_act = 0;
static char verbose = 0;
static char **environ = NULL;
+#ifdef CONFIG_FEATURE_IFUPDOWN_IP
+static int count_netmask_bits(char *dotted_quad)
+{
+ unsigned int a, b, c, d;
+ unsigned int res, result;
+ /* Found a netmask... Check if it is dotted quad */
+ if (sscanf(dotted_quad, "%u.%u.%u.%u", &a, &b, &c, &d) != 4)
+ return -1;
+ res = (a & 0x55) + ((a >> 1) & 0x55);
+ res = (res & 0x33) + ((res >> 2) & 0x33);
+ result = (res & 0x0F) + ((res >> 4) & 0x0F);
+
+ res = (b & 0x55) + ((b >> 1) & 0x55);
+ res = (res & 0x33) + ((res >> 2) & 0x33);
+ result += (res & 0x0F) + ((res >> 4) & 0x0F);
+
+ res = (c & 0x55) + ((c >> 1) & 0x55);
+ res = (res & 0x33) + ((res >> 2) & 0x33);
+ result += (res & 0x0F) + ((res >> 4) & 0x0F);
+
+ res = (d & 0x55) + ((d >> 1) & 0x55);
+ res = (res & 0x33) + ((res >> 2) & 0x33);
+ result += (res & 0x0F) + ((res >> 4) & 0x0F);
+ return ((int)result);
+}
+#endif
+
static void addstr(char **buf, size_t *len, size_t *pos, char *str, size_t str_length)
{
if (*pos + str_length >= *len) {
@@ -219,6 +246,21 @@ static char *parse(char *command, interface_defn_t *ifd)
if (varvalue) {
addstr(&result, &len, &pos, varvalue, xstrlen(varvalue));
} else {
+#ifdef CONFIG_FEATURE_IFUPDOWN_IP
+ /* Sigh... Add a special case for 'ip' to convert from
+ * dotted quad to bit count style netmasks. */
+ if (strncmp(command, "bnmask", 6)==0) {
+ int res;
+ varvalue = get_var("netmask", 7, ifd);
+ if (varvalue && (res=count_netmask_bits(varvalue)) > 0) {
+ char argument[255];
+ sprintf(argument, "%d", res);
+ addstr(&result, &len, &pos, argument, xstrlen(argument));
+ command = nextpercent + 1;
+ break;
+ }
+ }
+#endif
okay[opt_depth - 1] = 0;
}
@@ -428,7 +470,7 @@ static int loopback_up(interface_defn_t *ifd, execfn *exec)
static int loopback_down(interface_defn_t *ifd, execfn *exec)
{
#ifdef CONFIG_FEATURE_IFUPDOWN_IP
- if (!execute("ip -f inet addr flush dev %iface%", ifd, exec))
+ if (!execute("ip addr flush dev %iface%", ifd, exec))
return(0);
if (!execute("ip link set %iface% down", ifd, exec))
return(0);
@@ -445,7 +487,7 @@ static int static_up(interface_defn_t *ifd, execfn *exec)
#ifdef CONFIG_FEATURE_IFUPDOWN_IP
if (!execute("ip link set %iface% up", ifd, exec))
return(0);
- if (!execute("ip addr add %address%/%netmask% dev %iface%", ifd, exec))
+ if (!execute("ip addr add %address%/%bnmask% dev %iface%", ifd, exec))
return(0);
if (!execute("[[ ip route add default via %gateway% dev %iface% ]]", ifd, exec))
return(0);
@@ -464,9 +506,9 @@ static int static_up(interface_defn_t *ifd, execfn *exec)
static int static_down(interface_defn_t *ifd, execfn *exec)
{
#ifdef CONFIG_FEATURE_IFUPDOWN_IP
- if (!execute("[[ ip route del default via %gateway% dev %iface% ]]", ifd, exec))
- return(0);
- if (!execute("ip -f inet addr flush dev %iface%", ifd, exec))
+ //if (!execute("[[ ip route del default via %gateway% dev %iface% ]]", ifd, exec))
+ // return(0);
+ if (!execute("ip addr flush dev %iface%", ifd, exec))
return(0);
if (!execute("ip link set %iface% down", ifd, exec))
return(0);
@@ -897,11 +939,6 @@ static interfaces_file_t *read_interfaces(char *filename)
return defn;
}
-static int check(char *str)
-{
- return (str != NULL);
-}
-
static char *setlocalenv(char *format, char *name, char *value)
{
char *result;
@@ -1017,10 +1054,6 @@ static int execute_all(interface_defn_t *ifd, execfn *exec, const char *opt)
static int iface_up(interface_defn_t *iface)
{
- if (!iface->method->up(iface, check)) {
- return (-1);
- }
-
set_environ(iface, "start");
if (!execute_all(iface, doit, "pre-up")) {
return (0);
@@ -1037,9 +1070,6 @@ static int iface_up(interface_defn_t *iface)
static int iface_down(interface_defn_t *iface)
{
- if (!iface->method->down(iface, check)) {
- return (-1);
- }
set_environ(iface, "stop");
if (!execute_all(iface, doit, "down")) {
return (0);
@@ -1223,20 +1253,6 @@ extern int ifupdown_main(int argc, char **argv)
if (no_act) {
state_fp = fopen(statefile, "r");
- } else {
- state_fp = xfopen(statefile, "a+");
- }
-
- /* Read the previous state from the state file */
- if (state_fp != NULL) {
- char *start;
- while ((start = get_line_from_file(state_fp)) != NULL) {
- char *end_ptr;
- /* We should only need to check for a single character */
- end_ptr = start + strcspn(start, " \t\n");
- *end_ptr = '\0';
- state_list = llist_add_to(state_list, start);
- }
}
/* Create a list of interfaces to work on */
@@ -1249,6 +1265,7 @@ extern int ifupdown_main(int argc, char **argv)
target_list = llist_add_to(target_list, strdup(list->data));
list = list->link;
}
+ target_list = defn->autointerfaces;
}
} else {
target_list = llist_add_to(target_list, argv[optind]);
@@ -1285,12 +1302,10 @@ extern int ifupdown_main(int argc, char **argv)
}
} else {
/* ifdown */
- if (iface_state == NULL) {
+ if (iface_state) {
error_msg("interface %s not configured", iface);
continue;
}
- pch = strchr(iface_state->data, '=');
- liface = strdup(pch + 1);
}
}
@@ -1368,7 +1383,12 @@ extern int ifupdown_main(int argc, char **argv)
}
/* Actually write the new state */
- if (state_fp != NULL && !no_act) {
+ if (!no_act) {
+
+ if (state_fp)
+ fclose(state_fp);
+ state_fp = xfopen(statefile, "a+");
+
if (ftruncate(fileno(state_fp), 0) < 0) {
error_msg_and_die("failed to truncate statefile %s: %s", statefile, strerror(errno));
}
diff --git a/networking/libiproute/ip_parse_common_args.c b/networking/libiproute/ip_parse_common_args.c
index ac9d94916..4b4355ac1 100644
--- a/networking/libiproute/ip_parse_common_args.c
+++ b/networking/libiproute/ip_parse_common_args.c
@@ -47,6 +47,8 @@ void ip_parse_common_args(int *argcp, char ***argvp)
if (matches(opt, "-family") == 0) {
argc--;
argv++;
+ if (! argv[1])
+ show_usage();
if (strcmp(argv[1], "inet") == 0)
preferred_family = AF_INET;
else if (strcmp(argv[1], "inet6") == 0)
diff --git a/networking/libiproute/ipaddress.c b/networking/libiproute/ipaddress.c
index 88438179d..8eba90c77 100644
--- a/networking/libiproute/ipaddress.c
+++ b/networking/libiproute/ipaddress.c
@@ -524,8 +524,10 @@ extern int ipaddr_list_or_flush(int argc, char **argv, int flush)
exit(1);
}
if (filter.flushed == 0) {
+#if 0
if (round == 0)
fprintf(stderr, "Nothing to flush.\n");
+#endif
fflush(stdout);
return 0;
}