xref: /linux/include/linux/if_link.h (revision 367b8112fe2ea5c39a7bb4d263dcdd9b612fae18)
1 #ifndef _LINUX_IF_LINK_H
2 #define _LINUX_IF_LINK_H
3 
4 #include <linux/netlink.h>
5 
6 /* The struct should be in sync with struct net_device_stats */
7 struct rtnl_link_stats
8 {
9 	__u32	rx_packets;		/* total packets received	*/
10 	__u32	tx_packets;		/* total packets transmitted	*/
11 	__u32	rx_bytes;		/* total bytes received 	*/
12 	__u32	tx_bytes;		/* total bytes transmitted	*/
13 	__u32	rx_errors;		/* bad packets received		*/
14 	__u32	tx_errors;		/* packet transmit problems	*/
15 	__u32	rx_dropped;		/* no space in linux buffers	*/
16 	__u32	tx_dropped;		/* no space available in linux	*/
17 	__u32	multicast;		/* multicast packets received	*/
18 	__u32	collisions;
19 
20 	/* detailed rx_errors: */
21 	__u32	rx_length_errors;
22 	__u32	rx_over_errors;		/* receiver ring buff overflow	*/
23 	__u32	rx_crc_errors;		/* recved pkt with crc error	*/
24 	__u32	rx_frame_errors;	/* recv'd frame alignment error */
25 	__u32	rx_fifo_errors;		/* recv'r fifo overrun		*/
26 	__u32	rx_missed_errors;	/* receiver missed packet	*/
27 
28 	/* detailed tx_errors */
29 	__u32	tx_aborted_errors;
30 	__u32	tx_carrier_errors;
31 	__u32	tx_fifo_errors;
32 	__u32	tx_heartbeat_errors;
33 	__u32	tx_window_errors;
34 
35 	/* for cslip etc */
36 	__u32	rx_compressed;
37 	__u32	tx_compressed;
38 };
39 
40 /* The struct should be in sync with struct ifmap */
41 struct rtnl_link_ifmap
42 {
43 	__u64	mem_start;
44 	__u64	mem_end;
45 	__u64	base_addr;
46 	__u16	irq;
47 	__u8	dma;
48 	__u8	port;
49 };
50 
51 enum
52 {
53 	IFLA_UNSPEC,
54 	IFLA_ADDRESS,
55 	IFLA_BROADCAST,
56 	IFLA_IFNAME,
57 	IFLA_MTU,
58 	IFLA_LINK,
59 	IFLA_QDISC,
60 	IFLA_STATS,
61 	IFLA_COST,
62 #define IFLA_COST IFLA_COST
63 	IFLA_PRIORITY,
64 #define IFLA_PRIORITY IFLA_PRIORITY
65 	IFLA_MASTER,
66 #define IFLA_MASTER IFLA_MASTER
67 	IFLA_WIRELESS,		/* Wireless Extension event - see wireless.h */
68 #define IFLA_WIRELESS IFLA_WIRELESS
69 	IFLA_PROTINFO,		/* Protocol specific information for a link */
70 #define IFLA_PROTINFO IFLA_PROTINFO
71 	IFLA_TXQLEN,
72 #define IFLA_TXQLEN IFLA_TXQLEN
73 	IFLA_MAP,
74 #define IFLA_MAP IFLA_MAP
75 	IFLA_WEIGHT,
76 #define IFLA_WEIGHT IFLA_WEIGHT
77 	IFLA_OPERSTATE,
78 	IFLA_LINKMODE,
79 	IFLA_LINKINFO,
80 #define IFLA_LINKINFO IFLA_LINKINFO
81 	IFLA_NET_NS_PID,
82 	IFLA_IFALIAS,
83 	__IFLA_MAX
84 };
85 
86 
87 #define IFLA_MAX (__IFLA_MAX - 1)
88 
89 /* backwards compatibility for userspace */
90 #ifndef __KERNEL__
91 #define IFLA_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifinfomsg))))
92 #define IFLA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifinfomsg))
93 #endif
94 
95 /* ifi_flags.
96 
97    IFF_* flags.
98 
99    The only change is:
100    IFF_LOOPBACK, IFF_BROADCAST and IFF_POINTOPOINT are
101    more not changeable by user. They describe link media
102    characteristics and set by device driver.
103 
104    Comments:
105    - Combination IFF_BROADCAST|IFF_POINTOPOINT is invalid
106    - If neither of these three flags are set;
107      the interface is NBMA.
108 
109    - IFF_MULTICAST does not mean anything special:
110    multicasts can be used on all not-NBMA links.
111    IFF_MULTICAST means that this media uses special encapsulation
112    for multicast frames. Apparently, all IFF_POINTOPOINT and
113    IFF_BROADCAST devices are able to use multicasts too.
114  */
115 
116 /* IFLA_LINK.
117    For usual devices it is equal ifi_index.
118    If it is a "virtual interface" (f.e. tunnel), ifi_link
119    can point to real physical interface (f.e. for bandwidth calculations),
120    or maybe 0, what means, that real media is unknown (usual
121    for IPIP tunnels, when route to endpoint is allowed to change)
122  */
123 
124 /* Subtype attributes for IFLA_PROTINFO */
125 enum
126 {
127 	IFLA_INET6_UNSPEC,
128 	IFLA_INET6_FLAGS,	/* link flags			*/
129 	IFLA_INET6_CONF,	/* sysctl parameters		*/
130 	IFLA_INET6_STATS,	/* statistics			*/
131 	IFLA_INET6_MCAST,	/* MC things. What of them?	*/
132 	IFLA_INET6_CACHEINFO,	/* time values and max reasm size */
133 	IFLA_INET6_ICMP6STATS,	/* statistics (icmpv6)		*/
134 	__IFLA_INET6_MAX
135 };
136 
137 #define IFLA_INET6_MAX	(__IFLA_INET6_MAX - 1)
138 
139 struct ifla_cacheinfo
140 {
141 	__u32	max_reasm_len;
142 	__u32	tstamp;		/* ipv6InterfaceTable updated timestamp */
143 	__u32	reachable_time;
144 	__u32	retrans_time;
145 };
146 
147 enum
148 {
149 	IFLA_INFO_UNSPEC,
150 	IFLA_INFO_KIND,
151 	IFLA_INFO_DATA,
152 	IFLA_INFO_XSTATS,
153 	__IFLA_INFO_MAX,
154 };
155 
156 #define IFLA_INFO_MAX	(__IFLA_INFO_MAX - 1)
157 
158 /* VLAN section */
159 
160 enum
161 {
162 	IFLA_VLAN_UNSPEC,
163 	IFLA_VLAN_ID,
164 	IFLA_VLAN_FLAGS,
165 	IFLA_VLAN_EGRESS_QOS,
166 	IFLA_VLAN_INGRESS_QOS,
167 	__IFLA_VLAN_MAX,
168 };
169 
170 #define IFLA_VLAN_MAX	(__IFLA_VLAN_MAX - 1)
171 
172 struct ifla_vlan_flags {
173 	__u32	flags;
174 	__u32	mask;
175 };
176 
177 enum
178 {
179 	IFLA_VLAN_QOS_UNSPEC,
180 	IFLA_VLAN_QOS_MAPPING,
181 	__IFLA_VLAN_QOS_MAX
182 };
183 
184 #define IFLA_VLAN_QOS_MAX	(__IFLA_VLAN_QOS_MAX - 1)
185 
186 struct ifla_vlan_qos_mapping
187 {
188 	__u32 from;
189 	__u32 to;
190 };
191 
192 #endif /* _LINUX_IF_LINK_H */
193