+/* vi: set sw=4 ts=4: */
/*
* ifupdown for busybox
* Copyright (c) 2002 Glenn McGrath <bug1@optushome.com.au>
+ * Copyright (c) 2003 Erik Andersen <andersen@codepoet.org>
*
* Based on ifupdown v 0.6.4 by Anthony Towns
* Copyright (c) 1999 Anthony Towns <aj@azure.humbug.org.au>
#define EUNDEFVAR 10002
#define EUNBALPER 10000
-typedef struct interface_defn_s interface_defn_t;
+
+#if 0
+#define debug_noise(fmt, args...) printf(fmt, ## args)
+#else
+#define debug_noise(fmt, args...)
+#endif
+
+/* Forward declaration */
+struct interface_defn_t;
typedef int (execfn)(char *command);
-typedef int (command_set)(interface_defn_t *ifd, execfn *e);
+typedef int (command_set)(struct interface_defn_t *ifd, execfn *e);
+
+extern llist_t *llist_add_to_end(llist_t *list_head, char *data)
+{
+ llist_t *new_item, *tmp, *prev;
+
+ new_item = xmalloc(sizeof(llist_t));
+ new_item->data = data;
+ new_item->link = NULL;
+
+ prev = NULL;
+ tmp = list_head;
+ while(tmp) {
+ prev = tmp;
+ tmp = tmp->link;
+ }
+ if (prev) {
+ prev->link = new_item;
+ } else {
+ list_head = new_item;
+ }
-typedef struct method_s {
+ return(list_head);
+}
+
+struct method_t
+{
char *name;
command_set *up;
command_set *down;
-} method_t;
+};
-typedef struct address_family_s {
+struct address_family_t
+{
char *name;
int n_methods;
- method_t *method;
-} address_family_t;
+ struct method_t *method;
+};
-typedef struct mapping_defn_s {
- struct mapping_defn_s *next;
+struct mapping_defn_t
+{
+ struct mapping_defn_t *next;
int max_matches;
int n_matches;
int max_mappings;
int n_mappings;
char **mapping;
-} mapping_defn_t;
+};
-typedef struct variable_s {
+struct variable_t
+{
char *name;
char *value;
-} variable_t;
+};
-struct interface_defn_s {
- struct interface_defn_s *next;
+struct interface_defn_t
+{
+ struct interface_defn_t *prev;
+ struct interface_defn_t *next;
char *iface;
- address_family_t *address_family;
- method_t *method;
+ struct address_family_t *address_family;
+ struct method_t *method;
int automatic;
int max_options;
int n_options;
- variable_t *option;
+ struct variable_t *option;
};
-typedef struct interfaces_file_s {
+struct interfaces_file_t
+{
llist_t *autointerfaces;
- interface_defn_t *ifaces;
- mapping_defn_t *mappings;
-} interfaces_file_t;
+ llist_t *ifaces;
+ struct mapping_defn_t *mappings;
+};
static char no_act = 0;
static char verbose = 0;
static char **environ = NULL;
#ifdef CONFIG_FEATURE_IFUPDOWN_IP
+
+static unsigned int count_bits(unsigned int a)
+{
+ unsigned int result;
+ result = (a & 0x55) + ((a >> 1) & 0x55);
+ result = (result & 0x33) + ((result >> 2) & 0x33);
+ return((result & 0x0F) + ((result >> 4) & 0x0F));
+}
+
static int count_netmask_bits(char *dotted_quad)
{
- unsigned int a, b, c, d;
- unsigned int res, result;
+ unsigned int result, a, b, c, d;
/* 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);
+ result = count_bits(a);
+ result += count_bits(b);
+ result += count_bits(c);
+ result += count_bits(d);
return ((int)result);
}
#endif
}
}
-static char *get_var(char *id, size_t idlen, interface_defn_t *ifd)
+static char *get_var(char *id, size_t idlen, struct interface_defn_t *ifd)
{
int i;
if (strncmpz(id, "iface", idlen) == 0) {
+ char *result;
+ static char label_buf[20];
+ strncpy(label_buf, ifd->iface, 19);
+ label_buf[19]=0;
+ result = strchr(label_buf, ':');
+ if (result) {
+ *result=0;
+ }
+ return( label_buf);
+ } else if (strncmpz(id, "label", idlen) == 0) {
return (ifd->iface);
} else {
for (i = 0; i < ifd->n_options; i++) {
return(NULL);
}
-static char *parse(char *command, interface_defn_t *ifd)
+static char *parse(char *command, struct interface_defn_t *ifd)
{
char *result = NULL;
while (*command) {
switch (*command) {
- default:
- addstr(&result, &len, &pos, command, 1);
- command++;
- break;
- case '\\':
- if (command[1]) {
- addstr(&result, &len, &pos, command + 1, 1);
- command += 2;
- } else {
+ default:
addstr(&result, &len, &pos, command, 1);
command++;
- }
- break;
- case '[':
- if (command[1] == '[' && opt_depth < MAX_OPT_DEPTH) {
- old_pos[opt_depth] = pos;
- okay[opt_depth] = 1;
- opt_depth++;
- command += 2;
- } else {
- addstr(&result, &len, &pos, "[", 1);
- command++;
- }
- break;
- case ']':
- if (command[1] == ']' && opt_depth > 1) {
- opt_depth--;
- if (!okay[opt_depth]) {
- pos = old_pos[opt_depth];
- result[pos] = '\0';
+ break;
+ case '\\':
+ if (command[1]) {
+ addstr(&result, &len, &pos, command + 1, 1);
+ command += 2;
+ } else {
+ addstr(&result, &len, &pos, command, 1);
+ command++;
}
- command += 2;
- } else {
- addstr(&result, &len, &pos, "]", 1);
- command++;
- }
- break;
- case '%':
- {
- char *nextpercent;
- char *varvalue;
-
- command++;
- nextpercent = strchr(command, '%');
- if (!nextpercent) {
- errno = EUNBALPER;
- free(result);
- return (NULL);
- }
+ break;
+ case '[':
+ if (command[1] == '[' && opt_depth < MAX_OPT_DEPTH) {
+ old_pos[opt_depth] = pos;
+ okay[opt_depth] = 1;
+ opt_depth++;
+ command += 2;
+ } else {
+ addstr(&result, &len, &pos, "[", 1);
+ command++;
+ }
+ break;
+ case ']':
+ if (command[1] == ']' && opt_depth > 1) {
+ opt_depth--;
+ if (!okay[opt_depth]) {
+ pos = old_pos[opt_depth];
+ result[pos] = '\0';
+ }
+ command += 2;
+ } else {
+ addstr(&result, &len, &pos, "]", 1);
+ command++;
+ }
+ break;
+ case '%':
+ {
+ char *nextpercent;
+ char *varvalue;
+
+ command++;
+ nextpercent = strchr(command, '%');
+ if (!nextpercent) {
+ errno = EUNBALPER;
+ free(result);
+ return (NULL);
+ }
- varvalue = get_var(command, nextpercent - command, ifd);
+ varvalue = get_var(command, nextpercent - command, ifd);
- if (varvalue) {
- addstr(&result, &len, &pos, varvalue, bb_strlen(varvalue));
- } else {
+ if (varvalue) {
+ addstr(&result, &len, &pos, varvalue, bb_strlen(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, bb_strlen(argument));
- command = nextpercent + 1;
- break;
- }
- }
+ /* 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, bb_strlen(argument));
+ command = nextpercent + 1;
+ break;
+ }
+ }
#endif
- okay[opt_depth - 1] = 0;
- }
+ okay[opt_depth - 1] = 0;
+ }
- command = nextpercent + 1;
- }
- break;
+ command = nextpercent + 1;
+ }
+ break;
}
}
return(result);
}
-static int execute(char *command, interface_defn_t *ifd, execfn *exec)
+static int execute(char *command, struct interface_defn_t *ifd, execfn *exec)
{
char *out;
int ret;
if (!out) {
return(0);
}
-
ret = (*exec) (out);
free(out);
- return(ret);
+ return(1);
}
#ifdef CONFIG_FEATURE_IFUPDOWN_IPX
-static int static_up_ipx(interface_defn_t *ifd, execfn *exec)
+static int static_up_ipx(struct interface_defn_t *ifd, execfn *exec)
{
- if (!execute("ipx_interface add %iface% %frame% %netnum%", ifd, exec)) {
- return(0);
- }
- return(1);
+ return(execute("ipx_interface add %iface% %frame% %netnum%", ifd, exec));
}
-static int static_down_ipx(interface_defn_t *ifd, execfn *exec)
+static int static_down_ipx(struct interface_defn_t *ifd, execfn *exec)
{
- if (!execute("ipx_interface del %iface% %frame%", ifd, exec)) {
- return(0);
- }
- return(1);
+ return(execute("ipx_interface del %iface% %frame%", ifd, exec));
}
-static int dynamic_up(interface_defn_t *ifd, execfn *exec)
+static int dynamic_up(struct interface_defn_t *ifd, execfn *exec)
{
- if (!execute("ipx_interface add %iface% %frame%", ifd, exec)) {
- return(0);
- }
- return(1);
+ return(execute("ipx_interface add %iface% %frame%", ifd, exec));
}
-static int dynamic_down(interface_defn_t *ifd, execfn *exec)
+static int dynamic_down(struct interface_defn_t *ifd, execfn *exec)
{
- if (!execute("ipx_interface del %iface% %frame%", ifd, exec)) {
- return(0);
- }
- return(1);
+ return(execute("ipx_interface del %iface% %frame%", ifd, exec));
}
-static method_t methods_ipx[] = {
+static struct method_t methods_ipx[] = {
{ "dynamic", dynamic_up, dynamic_down, },
{ "static", static_up_ipx, static_down_ipx, },
};
-address_family_t addr_ipx = {
+struct address_family_t addr_ipx = {
"ipx",
- sizeof(methods_ipx) / sizeof(method_t),
+ sizeof(methods_ipx) / sizeof(struct method_t),
methods_ipx
};
#endif /* IFUP_FEATURE_IPX */
#ifdef CONFIG_FEATURE_IFUPDOWN_IPV6
-static int loopback_up6(interface_defn_t *ifd, execfn *exec)
+static int loopback_up6(struct 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 ::1 dev %iface%", ifd, exec))
- return(0);
+ int result;
+ result = execute("ip link set %iface% up", ifd, exec);
+ result +=execute("ip addr add ::1 dev %iface% label %label%", ifd, exec);
+ return( result);
#else
- if (!execute("ifconfig %iface% add ::1", ifd, exec))
- return(0);
+ return( execute("ifconfig %iface% add ::1", ifd, exec));
#endif
- return(1);
}
-static int loopback_down6(interface_defn_t *ifd, execfn *exec)
+static int loopback_down6(struct interface_defn_t *ifd, execfn *exec)
{
#ifdef CONFIG_FEATURE_IFUPDOWN_IP
- if (!execute("ip link set %iface% down", ifd, exec))
- return(0);
+ return(execute("ip link set %iface% down", ifd, exec));
#else
- if (!execute("ifconfig %iface% del ::1", ifd, exec))
- return(0);
+ return(execute("ifconfig %iface% del ::1", ifd, exec));
#endif
- return(1);
}
-static int static_up6(interface_defn_t *ifd, execfn *exec)
+static int static_up6(struct interface_defn_t *ifd, execfn *exec)
{
+ int result;
#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))
- return(0);
- if (!execute("[[ ip route add ::/0 via %gateway% ]]", ifd, exec))
- return(0);
+ result = execute("ip link set %iface% up", ifd, exec);
+ result += execute("ip addr add %address%/%netmask% dev %iface% label %label%", ifd, exec);
+ result += execute("[[ ip route add ::/0 via %gateway% ]]", ifd, exec);
#else
- if (!execute("ifconfig %iface% [[media %media%]] [[hw %hwaddress%]] [[mtu %mtu%]] up", ifd, exec)) {
- return(0);
- }
- if (!execute("ifconfig %iface% add %address%/%netmask%", ifd, exec)) {
- return(0);
- }
- if (!execute("[[ route -A inet6 add ::/0 gw %gateway% ]]", ifd, exec)) {
- return(0);
- }
+ result = execute("ifconfig %iface% [[media %media%]] [[hw %hwaddress%]] [[mtu %mtu%]] up", ifd, exec);
+ result += execute("ifconfig %iface% add %address%/%netmask%", ifd, exec);
+ result += execute("[[ route -A inet6 add ::/0 gw %gateway% ]]", ifd, exec);
#endif
- return(1);
+ return( result);
}
-static int static_down6(interface_defn_t *ifd, execfn *exec)
+static int static_down6(struct interface_defn_t *ifd, execfn *exec)
{
#ifdef CONFIG_FEATURE_IFUPDOWN_IP
- if (!execute("ip link set %iface% down", ifd, exec))
- return(0);
+ return(execute("ip link set %iface% down", ifd, exec));
#else
- if (!execute("ifconfig %iface% down", ifd, exec)) {
- return(0);
- }
+ return(execute("ifconfig %iface% down", ifd, exec));
#endif
- return(1);
}
#ifdef CONFIG_FEATURE_IFUPDOWN_IP
-static int v4tunnel_up(interface_defn_t *ifd, execfn *exec)
+static int v4tunnel_up(struct interface_defn_t *ifd, execfn *exec)
{
- if (!execute("ip tunnel add %iface% mode sit remote %endpoint% [[local %local%]] [[ttl %ttl%]]", ifd, exec)) {
- return(0);
- }
- if (!execute("ip link set %iface% up", ifd, exec)) {
- return(0);
- }
- if (!execute("ip addr add %address%/%netmask% dev %iface%", ifd, exec)) {
- return(0);
- }
- if (!execute("[[ ip route add ::/0 via %gateway% ]]", ifd, exec)) {
- return(0);
- }
- return(1);
+ int result;
+ result = execute("ip tunnel add %iface% mode sit remote "
+ "%endpoint% [[local %local%]] [[ttl %ttl%]]", ifd, exec);
+ result += execute("ip link set %iface% up", ifd, exec);
+ result += execute("ip addr add %address%/%netmask% dev %iface% label %label%", ifd, exec);
+ result += execute("[[ ip route add ::/0 via %gateway% ]]", ifd, exec);
+ return( result);
}
-static int v4tunnel_down(interface_defn_t * ifd, execfn * exec)
+static int v4tunnel_down(struct interface_defn_t * ifd, execfn * exec)
{
- if (!execute("ip tunnel del %iface%", ifd, exec)) {
- return(0);
- }
- return(1);
+ return( execute("ip tunnel del %iface%", ifd, exec));
}
#endif
-static method_t methods6[] = {
+static struct method_t methods6[] = {
#ifdef CONFIG_FEATURE_IFUPDOWN_IP
{ "v4tunnel", v4tunnel_up, v4tunnel_down, },
#endif
{ "loopback", loopback_up6, loopback_down6, },
};
-address_family_t addr_inet6 = {
+struct address_family_t addr_inet6 = {
"inet6",
- sizeof(methods6) / sizeof(method_t),
+ sizeof(methods6) / sizeof(struct method_t),
methods6
};
#endif /* CONFIG_FEATURE_IFUPDOWN_IPV6 */
#ifdef CONFIG_FEATURE_IFUPDOWN_IPV4
-static int loopback_up(interface_defn_t *ifd, execfn *exec)
+static int loopback_up(struct 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 127.0.0.1/8 dev %iface%", ifd, exec))
- return(0);
+ int result;
+ result += execute("ip link set %iface% up", ifd, exec);
+ result += execute("ip addr add 127.0.0.1/8 dev %iface% label %label%", ifd, exec);
+ return(result);
#else
- if (!execute("ifconfig %iface% 127.0.0.1 up", ifd, exec)) {
- return(0);
- }
+ return( execute("ifconfig %iface% 127.0.0.1 up", ifd, exec));
#endif
- return(1);
}
-static int loopback_down(interface_defn_t *ifd, execfn *exec)
+static int loopback_down(struct interface_defn_t *ifd, execfn *exec)
{
#ifdef CONFIG_FEATURE_IFUPDOWN_IP
- if (!execute("ip addr flush dev %iface%", ifd, exec))
- return(0);
- if (!execute("ip link set %iface% down", ifd, exec))
- return(0);
+ int result;
+ result = execute("ip addr flush dev %iface%", ifd, exec);
+ result += execute("ip link set %iface% down", ifd, exec);
+ return(result);
#else
- if (!execute("ifconfig %iface% 127.0.0.1 down", ifd, exec)) {
- return(0);
- }
+ return( execute("ifconfig %iface% 127.0.0.1 down", ifd, exec));
#endif
- return(1);
}
-static int static_up(interface_defn_t *ifd, execfn *exec)
+static int static_up(struct interface_defn_t *ifd, execfn *exec)
{
+ int result;
#ifdef CONFIG_FEATURE_IFUPDOWN_IP
- if (!execute("ip link set %iface% up", ifd, exec))
- return(0);
- if (!execute("ip addr add %address%/%bnmask% [[broadcast %broadcast%]] dev %iface%", ifd, exec))
- return(0);
- if (!execute("[[ ip route add default via %gateway% dev %iface% ]]", ifd, exec))
- return(0);
+ result = execute("ip link set %iface% up", ifd, exec);
+ result += execute("ip addr add %address%/%bnmask% [[broadcast %broadcast%]] "
+ "dev %iface% label %label%", ifd, exec);
+ result += execute("[[ ip route add default via %gateway% dev %iface% ]]", ifd, exec);
#else
- if (!execute("ifconfig %iface% %address% netmask %netmask% [[broadcast %broadcast%]] [[pointopoint %pointopoint%]] [[media %media%]] [[mtu %mtu%]] [[hw %hwaddress%]] up",
- ifd, exec)) {
- return(0);
- }
- if (!execute("[[ route add default gw %gateway% %iface% ]]", ifd, exec)) {
- return(0);
- }
+ result = execute("ifconfig %iface% %address% netmask %netmask% "
+ "[[broadcast %broadcast%]] [[pointopoint %pointopoint%]] "
+ "[[media %media%]] [[mtu %mtu%]] [[hw %hwaddress%]] up",
+ ifd, exec);
+ result += execute("[[ route add default gw %gateway% %iface% ]]", ifd, exec);
#endif
- return(1);
+ return(result);
}
-static int static_down(interface_defn_t *ifd, execfn *exec)
+static int static_down(struct interface_defn_t *ifd, execfn *exec)
{
+ int result;
#ifdef CONFIG_FEATURE_IFUPDOWN_IP
- //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);
+ result = execute("ip addr flush dev %iface%", ifd, exec);
+ result += execute("ip link set %iface% down", ifd, exec);
#else
- if (!execute("[[ route del default gw %gateway% %iface% ]]", ifd, exec)) {
- return(0);
- }
- if (!execute("ifconfig %iface% down", ifd, exec)) {
- return(0);
- }
+ result = execute("[[ route del default gw %gateway% %iface% ]]", ifd, exec);
+ result += execute("ifconfig %iface% down", ifd, exec);
#endif
- return(1);
+ return(result);
}
static int execable(char *program)
return(0);
}
-static int dhcp_up(interface_defn_t *ifd, execfn *exec)
+static int dhcp_up(struct interface_defn_t *ifd, execfn *exec)
{
- if (execable("/sbin/dhclient")) {
- if (!execute("dhclient -pf /var/run/dhclient.%iface%.pid %iface%", ifd, exec)) {
- return(0);
- }
+ if (execable("/sbin/udhcpc")) {
+ return( execute("udhcpc -n -p /var/run/udhcpc.%iface%.pid -i "
+ "%iface% [[-H %hostname%]] [[-c %clientid%]]", ifd, exec));
} else if (execable("/sbin/pump")) {
- if (!execute("pump -i %iface% [[-h %hostname%]] [[-l %leasehours%]]", ifd, exec)) {
- return(0);
- }
- } else if (execable("/sbin/udhcpc")) {
- if (!execute("udhcpc -n -p /var/run/udhcpc.%iface%.pid -i %iface% [[-H %hostname%]] [[-c %clientid%]]", ifd, exec)) {
- return 0;
- }
+ return( execute("pump -i %iface% [[-h %hostname%]] [[-l %leasehours%]]", ifd, exec));
+ } else if (execable("/sbin/dhclient")) {
+ return( execute("dhclient -pf /var/run/dhclient.%iface%.pid %iface%", ifd, exec));
} else if (execable("/sbin/dhcpcd")) {
- if (!execute("dhcpcd [[-h %hostname%]] [[-i %vendor%]] [[-I %clientid%]] [[-l %leasetime%]] %iface%", ifd, exec)) {
- return(0);
- }
+ return( execute("dhcpcd [[-h %hostname%]] [[-i %vendor%]] [[-I %clientid%]] "
+ "[[-l %leasetime%]] %iface%", ifd, exec));
}
- return(1);
+ return(0);
}
-static int dhcp_down(interface_defn_t *ifd, execfn *exec)
+static int dhcp_down(struct interface_defn_t *ifd, execfn *exec)
{
- if (execable("/sbin/dhclient")) {
- if (!execute("kill -9 `cat /var/run/udhcpc.%iface%.pid`", ifd, exec)) {
- return(0);
- }
+ int result;
+ if (execable("/sbin/udhcpc")) {
+ execute("kill -9 `cat /var/run/udhcpc.%iface%.pid` 2>/dev/null", ifd, exec);
+ result = 0;
} else if (execable("/sbin/pump")) {
- if (!execute("pump -i %iface% -k", ifd, exec)) {
- return(0);
- }
- } else if (execable("/sbin/udhcpc")) {
- if (!execute("kill -9 `cat /var/run/udhcpc.%iface%.pid`", ifd, exec)) {
- return(0);
- }
+ result = execute("pump -i %iface% -k", ifd, exec);
+ } else if (execable("/sbin/dhclient")) {
+ execute("kill -9 `cat /var/run/udhcpc.%iface%.pid` 2>/dev/null", ifd, exec);
+ result = 0;
} else if (execable("/sbin/dhcpcd")) {
- if (!execute("dhcpcd -k %iface%", ifd, exec)) {
- return(0);
- }
- }
- if (!execute("ifconfig %iface% down", ifd, exec)) {
- return(0);
+ result = execute("dhcpcd -k %iface%", ifd, exec);
}
- return(1);
+ return (result || execute("ifconfig %iface% down", ifd, exec));
}
-static int bootp_up(interface_defn_t *ifd, execfn *exec)
+static int bootp_up(struct interface_defn_t *ifd, execfn *exec)
{
- if (!execute("bootpc [[--bootfile %bootfile%]] --dev %iface% [[--server %server%]] [[--hwaddr %hwaddr%]] --returniffail --serverbcast", ifd, exec)) {
- return 0;
- }
- return 1;
+ return( execute("bootpc [[--bootfile %bootfile%]] --dev %iface% "
+ "[[--server %server%]] [[--hwaddr %hwaddr%]] "
+ "--returniffail --serverbcast", ifd, exec));
}
-static int bootp_down(interface_defn_t *ifd, execfn *exec)
+static int bootp_down(struct interface_defn_t *ifd, execfn *exec)
{
- if (!execute("ifconfig down %iface%", ifd, exec)) {
- return 0;
- }
- return 1;
+ return( execute("ifconfig down %iface%", ifd, exec));
}
-static int ppp_up(interface_defn_t *ifd, execfn *exec)
+static int ppp_up(struct interface_defn_t *ifd, execfn *exec)
{
- if (!execute("pon [[%provider%]]", ifd, exec)) {
- return 0;
- }
- return 1;
+ return( execute("pon [[%provider%]]", ifd, exec));
}
-static int ppp_down(interface_defn_t *ifd, execfn *exec)
+static int ppp_down(struct interface_defn_t *ifd, execfn *exec)
{
- if (!execute("poff [[%provider%]]", ifd, exec)) {
- return 0;
- }
- return 1;
+ return( execute("poff [[%provider%]]", ifd, exec));
}
-static int wvdial_up(interface_defn_t *ifd, execfn *exec)
+static int wvdial_up(struct interface_defn_t *ifd, execfn *exec)
{
- if (!execute("/sbin/start-stop-daemon --start -x /usr/bin/wvdial -p /var/run/wvdial.%iface% -b -m -- [[ %provider% ]]", ifd, exec)) {
- return 0;
- }
- return 1;
+ return( execute("/sbin/start-stop-daemon --start -x /usr/bin/wvdial "
+ "-p /var/run/wvdial.%iface% -b -m -- [[ %provider% ]]", ifd, exec));
}
-static int wvdial_down(interface_defn_t *ifd, execfn *exec)
+static int wvdial_down(struct interface_defn_t *ifd, execfn *exec)
{
- if (!execute ("/sbin/start-stop-daemon --stop -x /usr/bin/wvdial -p /var/run/wvdial.%iface% -s 2", ifd, exec)) {
- return 0;
- }
- return 1;
+ return( execute("/sbin/start-stop-daemon --stop -x /usr/bin/wvdial "
+ "-p /var/run/wvdial.%iface% -s 2", ifd, exec));
}
-static method_t methods[] = {
+static struct method_t methods[] =
+{
{ "wvdial", wvdial_up, wvdial_down, },
{ "ppp", ppp_up, ppp_down, },
{ "static", static_up, static_down, },
{ "loopback", loopback_up, loopback_down, },
};
-address_family_t addr_inet = {
+struct address_family_t addr_inet =
+{
"inet",
- sizeof(methods) / sizeof(method_t),
+ sizeof(methods) / sizeof(struct method_t),
methods
};
return word;
}
-static address_family_t *get_address_family(address_family_t *af[], char *name)
+static struct address_family_t *get_address_family(struct address_family_t *af[], char *name)
{
int i;
return NULL;
}
-static method_t *get_method(address_family_t *af, char *name)
+static struct method_t *get_method(struct address_family_t *af, char *name)
{
int i;
return(NULL);
}
-static int duplicate_if(interface_defn_t *ifa, interface_defn_t *ifb)
+static int duplicate_if(struct interface_defn_t *ifa, struct interface_defn_t *ifb)
{
if (strcmp(ifa->iface, ifb->iface) != 0) {
return(0);
return(NULL);
}
-static interfaces_file_t *read_interfaces(char *filename)
+static struct interfaces_file_t *read_interfaces(char *filename)
{
#ifdef CONFIG_FEATURE_IFUPDOWN_MAPPING
- mapping_defn_t *currmap = NULL;
+ struct mapping_defn_t *currmap = NULL;
#endif
- interface_defn_t *currif = NULL;
- interfaces_file_t *defn;
+ struct interface_defn_t *currif = NULL;
+ struct interfaces_file_t *defn;
FILE *f;
char *firstword;
char *buf;
enum { NONE, IFACE, MAPPING } currently_processing = NONE;
- defn = xmalloc(sizeof(interfaces_file_t));
+ defn = xmalloc(sizeof(struct interfaces_file_t));
defn->autointerfaces = NULL;
defn->mappings = NULL;
defn->ifaces = NULL;
f = bb_xfopen(filename, "r");
- while ((buf = bb_get_line_from_file(f)) != NULL) {
+ while ((buf = bb_get_chomped_line_from_file(f)) != NULL) {
char *buf_ptr = buf;
/* Ignore comments */
if (strcmp(firstword, "mapping") == 0) {
#ifdef CONFIG_FEATURE_IFUPDOWN_MAPPING
- currmap = xmalloc(sizeof(mapping_defn_t));
+ currmap = xmalloc(sizeof(struct mapping_defn_t));
currmap->max_matches = 0;
currmap->n_matches = 0;
currmap->match = NULL;
currmap->mapping = NULL;
currmap->script = NULL;
{
- mapping_defn_t **where = &defn->mappings;
+ struct mapping_defn_t **where = &defn->mappings;
while (*where != NULL) {
where = &(*where)->next;
}
*where = currmap;
currmap->next = NULL;
}
+ debug_noise("Added mapping\n");
#endif
currently_processing = MAPPING;
} else if (strcmp(firstword, "iface") == 0) {
char *iface_name;
char *address_family_name;
char *method_name;
- address_family_t *addr_fams[] = {
+ struct address_family_t *addr_fams[] = {
#ifdef CONFIG_FEATURE_IFUPDOWN_IPV4
&addr_inet,
#endif
NULL
};
- currif = xmalloc(sizeof(interface_defn_t));
+ currif = xmalloc(sizeof(struct interface_defn_t));
iface_name = next_word(&buf_ptr);
address_family_name = next_word(&buf_ptr);
method_name = next_word(&buf_ptr);
currif->n_options = 0;
currif->option = NULL;
-
{
- interface_defn_t **where = &defn->ifaces;
-
- while (*where != NULL) {
- if (duplicate_if(*where, currif)) {
- bb_error_msg("duplicate interface \"%s\"", buf);
+ struct interface_defn_t *tmp;
+ llist_t *iface_list;
+ iface_list = defn->ifaces;
+ while (iface_list) {
+ tmp = (struct interface_defn_t *) iface_list->data;
+ if (duplicate_if(tmp, currif)) {
+ bb_error_msg("duplicate interface \"%s\"", tmp->iface);
return NULL;
}
- where = &(*where)->next;
+ iface_list = iface_list->link;
}
- *where = currif;
- currif->next = NULL;
+ defn->ifaces = llist_add_to_end(defn->ifaces, (char*)currif);
}
+ debug_noise("iface %s %s %s\n", currif->iface, address_family_name, method_name);
}
currently_processing = IFACE;
} else if (strcmp(firstword, "auto") == 0) {
}
/* Add the interface to the list */
- defn->autointerfaces = llist_add_to(defn->autointerfaces, strdup(firstword));
+ defn->autointerfaces = llist_add_to_end(defn->autointerfaces, strdup(firstword));
+ debug_noise("\nauto %s\n", firstword);
}
currently_processing = NONE;
} else {
switch (currently_processing) {
- case IFACE:
- {
- int i;
-
- if (bb_strlen(buf_ptr) == 0) {
- bb_error_msg("option with empty value \"%s\"", buf);
- return NULL;
- }
+ case IFACE:
+ {
+ int i;
- if (strcmp(firstword, "up") != 0
- && strcmp(firstword, "down") != 0
- && strcmp(firstword, "pre-up") != 0
- && strcmp(firstword, "post-down") != 0) {
- for (i = 0; i < currif->n_options; i++) {
- if (strcmp(currif->option[i].name, firstword) == 0) {
- bb_error_msg("duplicate option \"%s\"", buf);
+ if (bb_strlen(buf_ptr) == 0) {
+ bb_error_msg("option with empty value \"%s\"", buf);
return NULL;
}
+
+ if (strcmp(firstword, "up") != 0
+ && strcmp(firstword, "down") != 0
+ && strcmp(firstword, "pre-up") != 0
+ && strcmp(firstword, "post-down") != 0) {
+ for (i = 0; i < currif->n_options; i++) {
+ if (strcmp(currif->option[i].name, firstword) == 0) {
+ bb_error_msg("duplicate option \"%s\"", buf);
+ return NULL;
+ }
+ }
+ }
}
- }
- }
- if (currif->n_options >= currif->max_options) {
- variable_t *opt;
+ if (currif->n_options >= currif->max_options) {
+ struct variable_t *opt;
- currif->max_options = currif->max_options + 10;
- opt = xrealloc(currif->option, sizeof(*opt) * currif->max_options);
- currif->option = opt;
- }
- currif->option[currif->n_options].name = bb_xstrdup(firstword);
- currif->option[currif->n_options].value = bb_xstrdup(next_word(&buf_ptr));
- if (!currif->option[currif->n_options].name) {
- perror(filename);
- return NULL;
- }
- if (!currif->option[currif->n_options].value) {
- perror(filename);
- return NULL;
- }
- currif->n_options++;
- break;
- case MAPPING:
-#ifdef CONFIG_FEATURE_IFUPDOWN_MAPPING
- if (strcmp(firstword, "script") == 0) {
- if (currmap->script != NULL) {
- bb_error_msg("duplicate script in mapping \"%s\"", buf);
+ currif->max_options = currif->max_options + 10;
+ opt = xrealloc(currif->option, sizeof(*opt) * currif->max_options);
+ currif->option = opt;
+ }
+ currif->option[currif->n_options].name = bb_xstrdup(firstword);
+ currif->option[currif->n_options].value = bb_xstrdup(buf_ptr);
+ if (!currif->option[currif->n_options].name) {
+ perror(filename);
+ return NULL;
+ }
+ if (!currif->option[currif->n_options].value) {
+ perror(filename);
return NULL;
- } else {
- currmap->script = bb_xstrdup(next_word(&buf_ptr));
}
- } else if (strcmp(firstword, "map") == 0) {
- if (currmap->max_mappings == currmap->n_mappings) {
- currmap->max_mappings = currmap->max_mappings * 2 + 1;
- currmap->mapping = xrealloc(currmap->mapping, sizeof(char *) * currmap->max_mappings);
+ debug_noise("\t%s=%s\n", currif->option[currif->n_options].name,
+ currif->option[currif->n_options].value);
+ currif->n_options++;
+ break;
+ case MAPPING:
+#ifdef CONFIG_FEATURE_IFUPDOWN_MAPPING
+ if (strcmp(firstword, "script") == 0) {
+ if (currmap->script != NULL) {
+ bb_error_msg("duplicate script in mapping \"%s\"", buf);
+ return NULL;
+ } else {
+ currmap->script = bb_xstrdup(next_word(&buf_ptr));
+ }
+ } else if (strcmp(firstword, "map") == 0) {
+ if (currmap->max_mappings == currmap->n_mappings) {
+ currmap->max_mappings = currmap->max_mappings * 2 + 1;
+ currmap->mapping = xrealloc(currmap->mapping, sizeof(char *) * currmap->max_mappings);
+ }
+ currmap->mapping[currmap->n_mappings] = bb_xstrdup(next_word(&buf_ptr));
+ currmap->n_mappings++;
+ } else {
+ bb_error_msg("misplaced option \"%s\"", buf);
+ return NULL;
}
- currmap->mapping[currmap->n_mappings] = bb_xstrdup(next_word(&buf_ptr));
- currmap->n_mappings++;
- } else {
+#endif
+ break;
+ case NONE:
+ default:
bb_error_msg("misplaced option \"%s\"", buf);
return NULL;
- }
-#endif
- break;
- case NONE:
- default:
- bb_error_msg("misplaced option \"%s\"", buf);
- return NULL;
}
}
free(buf);
return result;
}
-static void set_environ(interface_defn_t *iface, char *mode)
+static void set_environ(struct interface_defn_t *iface, char *mode)
{
char **environend;
int i;
for (i = 0; i < iface->n_options; i++) {
if (strcmp(iface->option[i].name, "up") == 0
- || strcmp(iface->option[i].name, "down") == 0
- || strcmp(iface->option[i].name, "pre-up") == 0
- || strcmp(iface->option[i].name, "post-down") == 0) {
+ || strcmp(iface->option[i].name, "down") == 0
+ || strcmp(iface->option[i].name, "pre-up") == 0
+ || strcmp(iface->option[i].name, "post-down") == 0) {
continue;
}
*(environend++) = setlocalenv("IF_%s=%s", iface->option[i].name, iface->option[i].value);
static int doit(char *str)
{
if (verbose || no_act) {
- bb_error_msg("%s", str);
+ printf("%s\n", str);
}
if (!no_act) {
pid_t child;
fflush(NULL);
switch (child = fork()) {
- case -1: /* failure */
- return 0;
- case 0: /* child */
- execle("/bin/sh", "/bin/sh", "-c", str, NULL, environ);
- exit(127);
+ case -1: /* failure */
+ return 0;
+ case 0: /* child */
+ execle("/bin/sh", "/bin/sh", "-c", str, NULL, environ);
+ exit(127);
}
waitpid(child, &status, 0);
if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
return (1);
}
-static int execute_all(interface_defn_t *ifd, execfn *exec, const char *opt)
+static int execute_all(struct interface_defn_t *ifd, execfn *exec, const char *opt)
{
int i;
char *buf;
return (1);
}
-static int iface_up(interface_defn_t *iface)
+static int check(char *str) {
+ return str != NULL;
+}
+
+static int iface_up(struct interface_defn_t *iface)
{
+ int result;
+ if (!iface->method->up(iface,check)) return -1;
set_environ(iface, "start");
- if (!execute_all(iface, doit, "pre-up")) {
- return (0);
- }
- if (!iface->method->up(iface, doit)) {
- return (0);
- }
- if (!execute_all(iface, doit, "up")) {
- return (0);
- }
-
- return (1);
+ result = execute_all(iface, doit, "pre-up");
+ result += iface->method->up(iface, doit);
+ result += execute_all(iface, doit, "up");
+ return(result);
}
-static int iface_down(interface_defn_t *iface)
+static int iface_down(struct interface_defn_t *iface)
{
+ int result;
+ if (!iface->method->down(iface,check)) return -1;
set_environ(iface, "stop");
- if (!execute_all(iface, doit, "down")) {
- return (0);
- }
- if (!iface->method->down(iface, doit)) {
- return (0);
- }
- if (!execute_all(iface, doit, "post-down")) {
- return (0);
- }
- return (1);
+ result = execute_all(iface, doit, "down");
+ result += iface->method->down(iface, doit);
+ result += execute_all(iface, doit, "post-down");
+ return(result);
}
#ifdef CONFIG_FEATURE_IFUPDOWN_MAPPING
fflush(NULL);
switch (pid = fork()) {
- case -1: /* failure */
- close(infd[0]);
- close(infd[1]);
- close(outfd[0]);
- close(outfd[1]);
- return 0;
- case 0: /* child */
- dup2(infd[0], 0);
- dup2(outfd[1], 1);
- close(infd[0]);
- close(infd[1]);
- close(outfd[0]);
- close(outfd[1]);
- execvp(command, argv);
- exit(127);
- default: /* parent */
- *in = fdopen(infd[1], "w");
- *out = fdopen(outfd[0], "r");
- close(infd[0]);
- close(outfd[1]);
- return pid;
+ case -1: /* failure */
+ close(infd[0]);
+ close(infd[1]);
+ close(outfd[0]);
+ close(outfd[1]);
+ return 0;
+ case 0: /* child */
+ dup2(infd[0], 0);
+ dup2(outfd[1], 1);
+ close(infd[0]);
+ close(infd[1]);
+ close(outfd[0]);
+ close(outfd[1]);
+ execvp(command, argv);
+ exit(127);
+ default: /* parent */
+ *in = fdopen(infd[1], "w");
+ *out = fdopen(outfd[0], "r");
+ close(infd[0]);
+ close(outfd[1]);
+ return pid;
}
/* unreached */
}
-static int run_mapping(char *physical, char *logical, int len, mapping_defn_t * map)
+static int run_mapping(char *physical, char *logical, int len, struct mapping_defn_t * map)
{
FILE *in, *out;
int i, status;
while (search) {
if ((strncmp(search->data, iface, iface_len) == 0) &&
- (search->data[iface_len] == '=')) {
+ (search->data[iface_len] == '=')) {
return(search);
}
search = search->link;
extern int ifupdown_main(int argc, char **argv)
{
- int (*cmds) (interface_defn_t *) = NULL;
- interfaces_file_t *defn;
+ int (*cmds) (struct interface_defn_t *) = NULL;
+ struct interfaces_file_t *defn;
FILE *state_fp = NULL;
llist_t *state_list = NULL;
llist_t *target_list = NULL;
}
#ifdef CONFIG_FEATURE_IFUPDOWN_MAPPING
- while ((i = getopt(argc, argv, "i:hvnamf")) != -1) {
+ while ((i = getopt(argc, argv, "i:hvnamf")) != -1)
#else
- while ((i = getopt(argc, argv, "i:hvnaf")) != -1) {
+ while ((i = getopt(argc, argv, "i:hvnaf")) != -1)
#endif
- switch (i) {
- case 'i': /* interfaces */
- interfaces = bb_xstrdup(optarg);
- break;
- case 'v': /* verbose */
- verbose = 1;
- break;
- case 'a': /* all */
- do_all = 1;
- break;
- case 'n': /* no-act */
- no_act = 1;
- break;
+ {
+ switch (i) {
+ case 'i': /* interfaces */
+ interfaces = bb_xstrdup(optarg);
+ break;
+ case 'v': /* verbose */
+ verbose = 1;
+ break;
+ case 'a': /* all */
+ do_all = 1;
+ break;
+ case 'n': /* no-act */
+ no_act = 1;
+ break;
#ifdef CONFIG_FEATURE_IFUPDOWN_MAPPING
- case 'm': /* no-mappings */
- run_mappings = 0;
- break;
+ case 'm': /* no-mappings */
+ run_mappings = 0;
+ break;
#endif
- case 'f': /* force */
- force = 1;
- break;
- default:
- bb_show_usage();
- break;
+ case 'f': /* force */
+ force = 1;
+ break;
+ default:
+ bb_show_usage();
+ break;
+ }
}
- }
if (argc - optind > 0) {
if (do_all) {
}
}
+ debug_noise("reading %s file:\n", interfaces);
defn = read_interfaces(interfaces);
+ debug_noise("\ndone reading %s\n\n", interfaces);
if (no_act) {
state_fp = fopen(statefile, "r");
if (do_all) {
if (cmds == iface_up) {
target_list = defn->autointerfaces;
- } else if (cmds == iface_down) {
+ } else {
+#if 0
+ /* iface_down */
+ llist_t *new_item;
const llist_t *list = state_list;
while (list) {
- target_list = llist_add_to(target_list, strdup(list->data));
+ new_item = xmalloc(sizeof(llist_t));
+ new_item->data = strdup(list->data);
+ new_item->link = NULL;
+ list = target_list;
+ if (list == NULL)
+ target_list = new_item;
+ else {
+ while (list->link) {
+ list = list->link;
+ }
+ list = new_item;
+ }
list = list->link;
}
target_list = defn->autointerfaces;
- }
+#else
+
+ /* iface_down */
+ const llist_t *list = state_list;
+ while (list) {
+ target_list = llist_add_to_end(target_list, strdup(list->data));
+ list = list->link;
+ }
+ target_list = defn->autointerfaces;
+#endif
+ }
} else {
- target_list = llist_add_to(target_list, argv[optind]);
+ target_list = llist_add_to_end(target_list, argv[optind]);
}
/* Update the interfaces */
while (target_list) {
- interface_defn_t *currif;
+ llist_t *iface_list;
+ struct interface_defn_t *currif;
char *iface;
char *liface;
char *pch;
#ifdef CONFIG_FEATURE_IFUPDOWN_MAPPING
if ((cmds == iface_up) && run_mappings) {
- mapping_defn_t *currmap;
+ struct mapping_defn_t *currmap;
for (currmap = defn->mappings; currmap; currmap = currmap->next) {
if (fnmatch(currmap->match[i], liface, 0) != 0)
continue;
if (verbose) {
- bb_error_msg("Running mapping script %s on %s", currmap->script, liface);
+ printf("Running mapping script %s on %s\n", currmap->script, liface);
}
run_mapping(iface, liface, sizeof(liface), currmap);
break;
}
#endif
- for (currif = defn->ifaces; currif; currif = currif->next) {
+
+ iface_list = defn->ifaces;
+ while (iface_list) {
+ currif = (struct interface_defn_t *) iface_list->data;
if (strcmp(liface, currif->iface) == 0) {
char *oldiface = currif->iface;
okay = 1;
currif->iface = iface;
- if (verbose) {
- bb_error_msg("Configuring interface %s=%s (%s)", iface, liface, currif->address_family->name);
- }
+ debug_noise("\nConfiguring interface %s (%s)\n", liface, currif->address_family->name);
/* Call the cmds function pointer, does either iface_up() or iface_down() */
if (cmds(currif) == -1) {
- printf
- ("Don't seem to be have all the variables for %s/%s.\n",
- liface, currif->address_family->name);
+ bb_error_msg("Don't seem to be have all the variables for %s/%s.",
+ liface, currif->address_family->name);
}
currif->iface = oldiface;
}
+ iface_list = iface_list->link;
+ }
+ if (verbose) {
+ printf("\n");
}
if (!okay && !force) {
- bb_error_msg("Ignoring unknown interface %s=%s.", iface, liface);
+ bb_error_msg("Ignoring unknown interface %s", liface);
} else {
llist_t *iface_state = find_iface_state(state_list, iface);
char *newiface = xmalloc(bb_strlen(iface) + 1 + bb_strlen(liface) + 1);
sprintf(newiface, "%s=%s", iface, liface);
if (iface_state == NULL) {
- state_list = llist_add_to(state_list, newiface);
+ state_list = llist_add_to_end(state_list, newiface);
} else {
free(iface_state->data);
iface_state->data = newiface;
projects / oweals / busybox.git / commitdiff