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author | 2019-09-24 13:28:37 +0000 | |
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committer | 2019-09-24 13:28:37 +0000 | |
commit | 7452ef6cb7be56a054f4bed2d1846ba874ab717c (patch) | |
tree | 2fe4f9f0a7f41909095caaf8c22b9b9b058b8a93 /extras/hicn-extra-plugin/devices/rtnetlink/rtnl.h | |
parent | 70a51ce9c175019f8394f523100a3c7066d3a4bc (diff) | |
parent | a0da41b243661a039481d2c254d7db8f55f18d2b (diff) |
Merge "[HICN-279] Added libmemif packaging."
Diffstat (limited to 'extras/hicn-extra-plugin/devices/rtnetlink/rtnl.h')
-rw-r--r-- | extras/hicn-extra-plugin/devices/rtnetlink/rtnl.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/extras/hicn-extra-plugin/devices/rtnetlink/rtnl.h b/extras/hicn-extra-plugin/devices/rtnetlink/rtnl.h new file mode 100644 index 000000000..3f96252c1 --- /dev/null +++ b/extras/hicn-extra-plugin/devices/rtnetlink/rtnl.h @@ -0,0 +1,60 @@ +/* + * Copyright (c) 2016-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef RTNL_H_ +#define RTNL_H_ + +#include <vlib/vlib.h> + +#include <linux/netlink.h> +#include <vppinfra/clib.h> + +typedef enum { + RTNL_ERR_UNKNOWN, +} rtnl_error_t; + +#define RTNL_NETNS_NAMELEN 128 + +/* + * RTNL stream implements an RTNL overlay + * for receiving continuous updates for a given namespace. + * When the stream is initially opened, dump requests are sent + * in order to retrieve the original state. + * handle_error is called any time synchronization cannot be + * achieved. When called, state is reset to its original state and + * new dump requests are sent. + */ + +typedef struct rtnl_stream_s { + char name[RTNL_NETNS_NAMELEN + 1]; + void (*recv_message)(struct nlmsghdr *hdr, uword opaque); + void (*error)(rtnl_error_t err, uword opaque); + uword opaque; +} rtnl_stream_t; + +u32 rtnl_stream_open(rtnl_stream_t *template); +void rtnl_stream_close(u32 handle); + +/* + * Executes a function in a synchronously executed thread in the + * given namespace. + * Returns 0 on success, and -errno on error. + */ +int rtnl_exec_in_namespace(u32 handle, void *(*fn)(void *), void *arg, void **ret); +int rtnl_exec_in_namespace_by_name(char *nsname, void *(*fn)(void *), void *arg, void **ret); + +u8 *format_rtnl_nsname2path(u8 *s, va_list *args); + +#endif |