ifdown is the counterpart to ifup and disables one or all ethernet
interfaces.
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
include/net.h | 4 +++
net/ifup.c | 69 +++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 73 insertions(+)
diff --git a/include/net.h b/include/net.h
index 23e3759905..583dc14ed5 100644
--- a/include/net.h
+++ b/include/net.h
@@ -488,6 +488,10 @@ int ifup_edev(struct eth_device *edev, unsigned flags);
int ifup(const char *name, unsigned flags);
int ifup_all(unsigned flags);
+void ifdown_edev(struct eth_device *edev);
+int ifdown(const char *name);
+void ifdown_all(void);
+
extern struct list_head netdev_list;
#define for_each_netdev(netdev) list_for_each_entry(netdev, &netdev_list, list)
diff --git a/net/ifup.c b/net/ifup.c
index fa2c52ff8b..b76b4bc44c 100644
--- a/net/ifup.c
+++ b/net/ifup.c
@@ -237,6 +237,12 @@ int ifup_edev(struct eth_device *edev, unsigned flags)
return 0;
}
+void ifdown_edev(struct eth_device *edev)
+{
+ eth_close(edev);
+ edev->ifup = false;
+}
+
int ifup(const char *ethname, unsigned flags)
{
struct eth_device *edev;
@@ -253,6 +259,19 @@ int ifup(const char *ethname, unsigned flags)
return ifup_edev(edev, flags);
}
+int ifdown(const char *ethname)
+{
+ struct eth_device *edev;
+
+ edev = eth_get_byname(ethname);
+ if (!edev)
+ return -ENODEV;
+
+ ifdown_edev(edev);
+
+ return 0;
+}
+
static int net_ifup_force_detect;
int ifup_all(unsigned flags)
@@ -286,6 +305,14 @@ int ifup_all(unsigned flags)
return 0;
}
+void ifdown_all(void)
+{
+ struct eth_device *edev;
+
+ for_each_netdev(edev)
+ ifdown_edev(edev);
+}
+
static int ifup_all_init(void)
{
globalvar_add_simple_bool("net.ifup_force_detect", &net_ifup_force_detect);
@@ -346,4 +373,46 @@ BAREBOX_CMD_START(ifup)
BAREBOX_CMD_HELP(cmd_ifup_help)
BAREBOX_CMD_END
+static int do_ifdown(int argc, char *argv[])
+{
+ int opt;
+ int all = 0;
+
+ while ((opt = getopt(argc, argv, "a")) > 0) {
+ switch (opt) {
+ case 'a':
+ all = 1;
+ break;
+ }
+ }
+
+ if (all) {
+ ifdown_all();
+ return 0;
+ }
+
+ if (argc == optind)
+ return COMMAND_ERROR_USAGE;
+
+ return ifdown(argv[optind]);
+}
+
+
+
+BAREBOX_CMD_HELP_START(ifdown)
+BAREBOX_CMD_HELP_TEXT("Disable a network interface")
+BAREBOX_CMD_HELP_TEXT("")
+BAREBOX_CMD_HELP_TEXT("Options:")
+BAREBOX_CMD_HELP_OPT ("-a", "disable all interfaces")
+BAREBOX_CMD_HELP_END
+
+BAREBOX_CMD_START(ifdown)
+ .cmd = do_ifdown,
+ BAREBOX_CMD_DESC("disable a network interface")
+ BAREBOX_CMD_OPTS("[-a] [INTF]")
+ BAREBOX_CMD_GROUP(CMD_GRP_NET)
+ BAREBOX_CMD_COMPLETE(eth_complete)
+ BAREBOX_CMD_HELP(cmd_ifdown_help)
+BAREBOX_CMD_END
+
#endif
--
2.25.1
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