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net: Routes dump and restore

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Same here -- run ip tool and that's it.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Pavel Emelyanov
2012-08-02 08:31:46 +04:00
parent fc1eb96783
commit a6439860cd
5 changed files with 22 additions and 0 deletions
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1
image.c
View File

@@ -120,6 +120,7 @@ struct cr_fd_desc_tmpl fdset_template[CR_FD_MAX] = {
FD_ENTRY(MOUNTPOINTS, "mountpoints-%d", show_mountpoints),
FD_ENTRY(NETDEV, "netdev-%d", show_netdevices),
FD_ENTRY(IFADDR, "ifaddr-%d", show_ifaddrs),
FD_ENTRY(ROUTE, "route-%d", show_routes),
};
static struct cr_fdset *alloc_cr_fdset(int nr)

1
include/crtools.h
View File

@@ -48,6 +48,7 @@ enum {
CR_FD_MOUNTPOINTS,
CR_FD_NETDEV,
CR_FD_IFADDR,
CR_FD_ROUTE,
_CR_FD_NS_TO,
CR_FD_PSTREE,

1
include/image.h
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@@ -59,6 +59,7 @@
#define NETDEV_MAGIC 0x57373951 /* Yaroslavl */
#define IFADDR_MAGIC RAW_IMAGE_MAGIC
#define ROUTE_MAGIC RAW_IMAGE_MAGIC
#define PAGE_IMAGE_SIZE 4096
#define PAGE_RSS 1

1
include/net.h
View File

@@ -3,6 +3,7 @@
struct cr_options;
void show_netdevices(int fd, struct cr_options *);
void show_ifaddrs(int fd, struct cr_options *);
void show_routes(int fd, struct cr_options *);
struct cr_fdset;
int dump_net_ns(int pid, struct cr_fdset *);

18
net.c
View File

@@ -232,6 +232,11 @@ static inline int dump_ifaddr(struct cr_fdset *fds)
return run_ip_tool("addr", "save", -1, fdset_fd(fds, CR_FD_IFADDR));
}
static inline int dump_route(struct cr_fdset *fds)
{
return run_ip_tool("route", "save", -1, fdset_fd(fds, CR_FD_ROUTE));
}
static int restore_ip_dump(int type, int pid, char *cmd)
{
int fd, ret;
@@ -250,11 +255,20 @@ static inline int restore_ifaddr(int pid)
return restore_ip_dump(CR_FD_IFADDR, pid, "addr");
}
static inline int restore_route(int pid)
{
return restore_ip_dump(CR_FD_ROUTE, pid, "route");
}
void show_ifaddrs(int fd, struct cr_options *o)
{
BUG_ON(1);
}
void show_routes(int fd, struct cr_options *o)
{
BUG_ON(1);
}
int dump_net_ns(int pid, struct cr_fdset *fds)
{
@@ -265,6 +279,8 @@ int dump_net_ns(int pid, struct cr_fdset *fds)
ret = dump_links(fds);
if (!ret)
ret = dump_ifaddr(fds);
if (!ret)
ret = dump_route(fds);
return ret;
}
@@ -276,6 +292,8 @@ int prepare_net_ns(int pid)
ret = restore_links(pid);
if (!ret)
ret = restore_ifaddr(pid);
if (!ret)
ret = restore_route(pid);
return ret;
}