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Option to allow ifupdown use ip commands instead of ifconfig, add flush

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command to ipaddr, patch by Bastian Blank
This commit is contained in:
Glenn L McGrath 2003-01-13 21:40:38 +00:00
parent 4e486a5d00
commit d66370cd73
5 changed files with 170 additions and 27 deletions
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32
include/usage.h
View File

@ -878,28 +878,28 @@
#define ifup_full_usage \
"Usage: ifup <options> <ifaces...>\n\n" \
"Options:\n" \
"\t-h, --help\t\tthis help\n" \
"\t-a, --all\t\tde/configure all interfaces automatically\n" \
"\t-i, --interfaces FILE\tuse FILE for interface definitions\n" \
"\t-n, --no-act\t\tprint out what would happen, but don't do it\n" \
"\t\t\t\t(note that this option doesn't disable mappings)\n" \
"\t-v, --verbose\t\tprint out what would happen before doing it\n" \
"\t--no-mappings\t\tdon't run any mappings\n" \
"\t--force\t\t\tforce de/configuration\n"
"\t-h\tthis help\n" \
"\t-a\tde/configure all interfaces automatically\n" \
"\t-i FILE\tuse FILE for interface definitions\n" \
"\t-n\tprint out what would happen, but don't do it\n" \
"\t\t\t(note that this option doesn't disable mappings)\n" \
"\t-v\tprint out what would happen before doing it\n" \
"\t-m\tdon't run any mappings\n" \
"\t-f\tforce de/configuration\n"
#define ifdown_trivial_usage \
"<-ahinv> <ifaces...>"
#define ifdown_full_usage \
"Usage: ifdown <options> <ifaces...>\n\n" \
"Options:\n" \
"\t-h, --help\t\tthis help\n" \
"\t-a, --all\t\tde/configure all interfaces automatically\n" \
"\t-i, --interfaces FILE\tuse FILE for interface definitions\n" \
"\t-n, --no-act\t\tprint out what would happen, but don't do it\n" \
"\t\t\t\t(note that this option doesn't disable mappings)\n" \
"\t-v, --verbose\t\tprint out what would happen before doing it\n" \
"\t--no-mappings\t\tdon't run any mappings\n" \
"\t--force\t\t\tforce de/configuration\n"
"\t-h\tthis help\n" \
"\t-a\tde/configure all interfaces automatically\n" \
"\t-i FILE\tuse FILE for interface definitions\n" \
"\t-n\tprint out what would happen, but don't do it\n" \
"\t\t(note that this option doesn't disable mappings)\n" \
"\t-v\tprint out what would happen before doing it\n" \
"\t-m\tdon't run any mappings\n" \
"\t-f\tforce de/configuration\n"
#define init_trivial_usage \
""

11
networking/Config.in
View File

@ -96,6 +96,13 @@ config CONFIG_IFUPDOWN
help
Please submit a patch to add help text for this item.
config CONFIG_FEATURE_IFUPDOWN_IP
bool " Use ip applet"
default n
depends on CONFIG_IFUPDOWN && CONFIG_IP && CONFIG_FEATURE_IP_ADDRESS && CONFIG_FEATURE_IP_LINK && CONFIG_FEATURE_IP_ROUTE
help
Please submit a patch to add help text for this item.
config CONFIG_FEATURE_IFUPDOWN_IPV4
bool " Enable support for IPv4"
default y
@ -104,14 +111,14 @@ config CONFIG_FEATURE_IFUPDOWN_IPV4
Please submit a patch to add help text for this item.
config CONFIG_FEATURE_IFUPDOWN_IPV6
bool " Enable support for IPv6 (requires ip command)"
bool " Enable support for IPv6"
default n
depends on CONFIG_IFUPDOWN
help
Please submit a patch to add help text for this item.
config CONFIG_FEATURE_IFUPDOWN_IPX
bool " Enable support for IPX (requires ipx_interface command)"
bool " Enable support for IPX"
default n
depends on CONFIG_IFUPDOWN
help

69
networking/ifupdown.c
View File

@ -307,22 +307,40 @@ address_family_t addr_ipx = {
#ifdef CONFIG_FEATURE_IFUPDOWN_IPV6
static int loopback_up6(interface_defn_t *ifd, execfn *exec)
{
if (!execute("ifconfig %iface% add ::1", ifd, 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);
#else
if (!execute("ifconfig %iface% add ::1", ifd, exec))
return(0);
#endif
return(1);
}
static int loopback_down6(interface_defn_t *ifd, execfn *exec)
{
if (!execute("ifconfig %iface% del ::1", ifd, exec)) {
#ifdef CONFIG_FEATURE_IFUPDOWN_IP
if (!execute("ip link set %iface% down", ifd, exec))
return(0);
}
#else
if (!execute("ifconfig %iface% del ::1", ifd, exec))
return(0);
#endif
return(1);
}
static int static_up6(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))
return(0);
if (!execute("[[ ip route add ::/0 via %gateway% ]]", ifd, exec))
return(0);
#else
if (!execute("ifconfig %iface% [[media %media%]] [[hw %hwaddress%]] [[mtu %mtu%]] up", ifd, exec)) {
return(0);
}
@ -332,17 +350,24 @@ static int static_up6(interface_defn_t *ifd, execfn *exec)
if (!execute("[[ route -A inet6 add ::/0 gw %gateway% ]]", ifd, exec)) {
return(0);
}
#endif
return(1);
}
static int static_down6(interface_defn_t *ifd, execfn *exec)
{
#ifdef CONFIG_FEATURE_IFUPDOWN_IP
if (!execute("ip link set %iface% down", ifd, exec))
return(0);
#else
if (!execute("ifconfig %iface% down", ifd, exec)) {
return(0);
}
#endif
return(1);
}
#ifdef CONFIG_FEATURE_IFUPDOWN_IP
static int v4tunnel_up(interface_defn_t *ifd, execfn *exec)
{
if (!execute("ip tunnel add %iface% mode sit remote %endpoint% [[local %local%]] [[ttl %ttl%]]", ifd, exec)) {
@ -367,9 +392,12 @@ static int v4tunnel_down(interface_defn_t * ifd, execfn * exec)
}
return(1);
}
#endif
static method_t methods6[] = {
#ifdef CONFIG_FEATURE_IFUPDOWN_IP
{ "v4tunnel", v4tunnel_up, v4tunnel_down, },
#endif
{ "static", static_up6, static_down6, },
{ "loopback", loopback_up6, loopback_down6, },
};
@ -384,22 +412,44 @@ address_family_t addr_inet6 = {
#ifdef CONFIG_FEATURE_IFUPDOWN_IPV4
static int loopback_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 127.0.0.1 dev %iface%", ifd, exec))
return(0);
#else
if (!execute("ifconfig %iface% 127.0.0.1 up", ifd, exec)) {
return(0);
}
#endif
return(1);
}
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))
return(0);
if (!execute("ip link set %iface% down", ifd, exec))
return(0);
#else
if (!execute("ifconfig %iface% 127.0.0.1 down", ifd, exec)) {
return(0);
}
#endif
return(1);
}
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))
return(0);
if (!execute("[[ ip route add default via %gateway% dev %iface% ]]", ifd, exec))
return(0);
#else
if (!execute("ifconfig %iface% %address% netmask %netmask% [[broadcast %broadcast%]] [[pointopoint %pointopoint%]] [[media %media%]] [[mtu %mtu%]] [[hw %hwaddress%]] up",
ifd, exec)) {
return(0);
@ -407,17 +457,27 @@ static int static_up(interface_defn_t *ifd, execfn *exec)
if (!execute("[[ route add default gw %gateway% %iface% ]]", ifd, exec)) {
return(0);
}
#endif
return(1);
}
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))
return(0);
if (!execute("ip link set %iface% down", ifd, exec))
return(0);
#else
if (!execute("[[ route del default gw %gateway% %iface% ]]", ifd, exec)) {
return(0);
}
if (!execute("ifconfig %iface% down", ifd, exec)) {
return(0);
}
#endif
return(1);
}
@ -936,7 +996,6 @@ static int doit(char *str)
case 0: /* child */
execle("/bin/sh", "/bin/sh", "-c", str, NULL, environ);
exit(127);
default: /* parent */
}
waitpid(child, &status, 0);
if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {

83
networking/libiproute/ipaddress.c
View File

@ -42,6 +42,10 @@ static struct
int flags, flagmask;
int up;
char *label;
int flushed;
char *flushb;
int flushp;
int flushe;
struct rtnl_handle *rth;
} filter;
@ -191,6 +195,16 @@ static int print_linkinfo(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg
return 0;
}
static int flush_update(void)
{
if (rtnl_send(filter.rth, filter.flushb, filter.flushp) < 0) {
perror("Failed to send flush request\n");
return -1;
}
filter.flushp = 0;
return 0;
}
static int print_addrinfo(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
{
FILE *fp = (FILE*)arg;
@ -208,6 +222,9 @@ static int print_addrinfo(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg
return -1;
}
if (filter.flushb && n->nlmsg_type != RTM_NEWADDR)
return 0;
memset(rta_tb, 0, sizeof(rta_tb));
parse_rtattr(rta_tb, IFA_MAX, IFA_RTA(ifa), n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
@ -242,6 +259,22 @@ static int print_addrinfo(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg
}
}
if (filter.flushb) {
struct nlmsghdr *fn;
if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) {
if (flush_update())
return -1;
}
fn = (struct nlmsghdr*)(filter.flushb + NLMSG_ALIGN(filter.flushp));
memcpy(fn, n, n->nlmsg_len);
fn->nlmsg_type = RTM_DELADDR;
fn->nlmsg_flags = NLM_F_REQUEST;
fn->nlmsg_seq = ++filter.rth->seq;
filter.flushp = (((char*)fn) + n->nlmsg_len) - filter.flushb;
filter.flushed++;
return 0;
}
if (n->nlmsg_type == RTM_DELADDR)
fprintf(fp, "Deleted ");
@ -382,7 +415,7 @@ static void ipaddr_reset_filter(int _oneline)
filter.oneline = _oneline;
}
extern int ipaddr_list(int argc, char **argv)
extern int ipaddr_list_or_flush(int argc, char **argv, int flush)
{
const char *option[] = { "to", "scope", "up", "label", "dev", 0 };
struct nlmsg_list *linfo = NULL;
@ -398,6 +431,17 @@ extern int ipaddr_list(int argc, char **argv)
if (filter.family == AF_UNSPEC)
filter.family = preferred_family;
if (flush) {
if (argc <= 0) {
fprintf(stderr, "Flush requires arguments.\n");
return -1;
}
if (filter.family == AF_PACKET) {
fprintf(stderr, "Cannot flush link addresses.\n");
return -1;
}
}
while (argc > 0) {
const unsigned short option_num = compare_string_array(option, *argv);
switch (option_num) {
@ -461,6 +505,37 @@ extern int ipaddr_list(int argc, char **argv)
}
}
if (flush) {
int round = 0;
char flushb[4096-512];
filter.flushb = flushb;
filter.flushp = 0;
filter.flushe = sizeof(flushb);
filter.rth = &rth;
for (;;) {
if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) {
perror("Cannot send dump request");
exit(1);
}
filter.flushed = 0;
if (rtnl_dump_filter(&rth, print_addrinfo, stdout, NULL, NULL) < 0) {
fprintf(stderr, "Flush terminated\n");
exit(1);
}
if (filter.flushed == 0) {
if (round == 0)
fprintf(stderr, "Nothing to flush.\n");
fflush(stdout);
return 0;
}
round++;
if (flush_update() < 0)
exit(1);
}
}
if (filter.family != AF_PACKET) {
if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) {
perror_msg_and_die("Cannot send dump request");
@ -727,7 +802,7 @@ static int ipaddr_modify(int cmd, int argc, char **argv)
extern int do_ipaddr(int argc, char **argv)
{
const char *commands[] = { "add", "delete", "list", "show", "lst", 0 };
const char *commands[] = { "add", "delete", "list", "show", "lst", "flush", 0 };
unsigned short command_num = 2;
if (*argv) {
@ -741,7 +816,9 @@ extern int do_ipaddr(int argc, char **argv)
case 2: /* list */
case 3: /* show */
case 4: /* lst */
return ipaddr_list(argc-1, argv+1);
return ipaddr_list_or_flush(argc-1, argv+1, 0);
case 5: /* flush */
return ipaddr_list_or_flush(argc-1, argv+1, 1);
}
error_msg_and_die("Unknown command %s", *argv);
}

2
networking/libiproute/iplink.c
View File

@ -334,7 +334,7 @@ static int ipaddr_list_link(int argc, char **argv)
{
preferred_family = AF_PACKET;
do_link = 1;
return ipaddr_list(argc, argv);
return ipaddr_list_or_flush(argc, argv, 0);
}
int do_iplink(int argc, char **argv)