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Posted to commits@nuttx.apache.org by xi...@apache.org on 2021/01/17 06:52:47 UTC
[incubator-nuttx] branch master updated: netpacket/if_addr: add
interface address header
This is an automated email from the ASF dual-hosted git repository.
xiaoxiang pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-nuttx.git
The following commit(s) were added to refs/heads/master by this push:
new 92259cb netpacket/if_addr: add interface address header
92259cb is described below
commit 92259cb19409aff1ca0fc4f8bf15ad4e72df14b1
Author: chao.an <an...@xiaomi.com>
AuthorDate: Tue Jan 5 20:16:17 2021 +0800
netpacket/if_addr: add interface address header
Signed-off-by: chao.an <an...@xiaomi.com>
---
include/netpacket/if_addr.h | 112 ++++++++++++++++++++++++++++++++++++++++++++
include/netpacket/netlink.h | 33 +------------
2 files changed, 114 insertions(+), 31 deletions(-)
diff --git a/include/netpacket/if_addr.h b/include/netpacket/if_addr.h
new file mode 100644
index 0000000..a86bd4e
--- /dev/null
+++ b/include/netpacket/if_addr.h
@@ -0,0 +1,112 @@
+/****************************************************************************
+ * include/netpacket/if_addr.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership. The
+ * ASF licenses this file to you 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 __INCLUDE_NETPACKET_IF_ADDR_H
+#define __INCLUDE_NETPACKET_IF_ADDR_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <sys/types.h>
+#include <netpacket/netlink.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#define IFA_MAX (__IFA_MAX - 1)
+
+/* ifa_flags */
+
+#define IFA_F_SECONDARY 0x01
+#define IFA_F_TEMPORARY IFA_F_SECONDARY
+
+#define IFA_F_NODAD 0x02
+#define IFA_F_OPTIMISTIC 0x04
+#define IFA_F_DADFAILED 0x08
+#define IFA_F_HOMEADDRESS 0x10
+#define IFA_F_DEPRECATED 0x20
+#define IFA_F_TENTATIVE 0x40
+#define IFA_F_PERMANENT 0x80
+#define IFA_F_MANAGETEMPADDR 0x100
+#define IFA_F_NOPREFIXROUTE 0x200
+#define IFA_F_MCAUTOJOIN 0x400
+#define IFA_F_STABLE_PRIVACY 0x800
+
+/* backwards compatibility for userspace */
+
+#define IFA_RTA(r) ((FAR struct rtattr *)(((FAR char *)(r)) + \
+ NLMSG_ALIGN(sizeof(struct ifaddrmsg))))
+#define IFA_PAYLOAD(n) NLMSG_PAYLOAD(n, sizeof(struct ifaddrmsg))
+
+/****************************************************************************
+ * Public Type Definitions
+ ****************************************************************************/
+
+/* RTM_NEWADDR, RTM_DELADDR, RTM_GETADDR
+ *
+ * Add, remove or receive information about an IP address associated with
+ * an interface. These messages contain an ifaddrmsg structure, optionally
+ * followed by rtattr routing attributes.
+ */
+
+struct ifaddrmsg
+{
+ uint8_t ifa_family; /* Address type: AF_INET or AF_INET6 */
+ uint8_t ifa_prefixlen; /* Prefix length of address */
+ uint8_t ifa_flags; /* Address flags. See IFA_F_* definitions */
+ uint8_t ifa_scope; /* Address scope */
+ int32_t ifa_index; /* Unique interface index */
+};
+
+/* Important comment:
+ * IFA_ADDRESS is prefix address, rather than local interface address.
+ * It makes no difference for normally configured broadcast interfaces,
+ * but for point-to-point IFA_ADDRESS is DESTINATION address,
+ * local address is supplied in IFA_LOCAL attribute.
+ *
+ * IFA_FLAGS is a u32 attribute that extends the u8 field ifa_flags.
+ * If present, the value from struct ifaddrmsg will be ignored.
+ */
+
+enum
+{
+ IFA_UNSPEC,
+ IFA_ADDRESS,
+ IFA_LOCAL,
+ IFA_LABEL,
+ IFA_BROADCAST,
+ IFA_ANYCAST,
+ IFA_CACHEINFO,
+ IFA_MULTICAST,
+ IFA_FLAGS,
+ __IFA_MAX,
+};
+
+struct ifa_cacheinfo
+{
+ uint32_t ifa_prefered;
+ uint32_t ifa_valid;
+ uint32_t cstamp; /* created timestamp, hundredths of seconds */
+ uint32_t tstamp; /* updated timestamp, hundredths of seconds */
+};
+
+#endif /* __INCLUDE_NETPACKET_IF_ADDR_H */
diff --git a/include/netpacket/netlink.h b/include/netpacket/netlink.h
index f0afa9f..b3f238d 100644
--- a/include/netpacket/netlink.h
+++ b/include/netpacket/netlink.h
@@ -46,6 +46,8 @@
#include <sys/socket.h>
#include <stdint.h>
+#include <netpacket/if_addr.h>
+
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
@@ -291,21 +293,6 @@
#define RTM_BASE 16
#define RTM_MAX 67
-/* Definitions for struct ifaddrmsg ****************************************/
-
-#define IFA_RTA(r) ((FAR struct rtattr *) \
- (((FAR char *)(r)) + \
- NLMSG_ALIGN(sizeof(struct ifaddrmsg))))
-#define IFA_PAYLOAD(n) NLMSG_PAYLOAD(n, sizeof(struct ifaddrmsg))
-
-/* ifa_flags definitions: ifa_flags is a flag word of IFA_F_SECONDARY for
- * secondary address (old alias interface), IFA_F_PERMANENT for a permanent
- * address set by the user and other undocumented flags.
- */
-
-#define IFA_F_SECONDARY 0x01
-#define IFA_F_PERMANENT 0x80
-
/* Definitions for struct ifinfomsg *****************************************/
#define IFLA_RTA(r) ((FAR struct rtattr *) \
@@ -483,22 +470,6 @@ struct rtgenmsg
uint8_t rtgen_family;
};
-/* RTM_NEWADDR, RTM_DELADDR, RTM_GETADDR
- *
- * Add, remove or receive information about an IP address associated with
- * an interface. These messages contain an ifaddrmsg structure, optionally
- * followed by rtattr routing attributes.
- */
-
-struct ifaddrmsg
-{
- uint8_t ifa_family; /* Address type: AF_INET or AF_INET6 */
- uint8_t ifa_prefixlen; /* Prefix length of address */
- uint8_t ifa_flags; /* Address flags. See IFA_F_* definitions */
- uint8_t ifa_scope; /* Address scope */
- int32_t ifa_index; /* Unique interface index */
-};
-
/* RTM_NEWNEIGH, RTM_DELNEIGH, RTM_GETNEIGH
* Add, remove or receive information about a neighbor table entry (e.g.,
* an ARP entry). The message contains an ndmsg structure.