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41#ifndef __LIBCFS_IOCTL_H__
42#define __LIBCFS_IOCTL_H__
43
44#define LIBCFS_IOCTL_VERSION 0x0001000a
45
46struct libcfs_ioctl_data {
47 __u32 ioc_len;
48 __u32 ioc_version;
49
50 __u64 ioc_nid;
51 __u64 ioc_u64[1];
52
53 __u32 ioc_flags;
54 __u32 ioc_count;
55 __u32 ioc_net;
56 __u32 ioc_u32[7];
57
58 __u32 ioc_inllen1;
59 char *ioc_inlbuf1;
60 __u32 ioc_inllen2;
61 char *ioc_inlbuf2;
62
63 __u32 ioc_plen1;
64 char *ioc_pbuf1;
65 __u32 ioc_plen2;
66 char *ioc_pbuf2;
67
68 char ioc_bulk[0];
69};
70
71#define ioc_priority ioc_u32[0]
72
73struct libcfs_ioctl_hdr {
74 __u32 ioc_len;
75 __u32 ioc_version;
76};
77
78struct libcfs_debug_ioctl_data {
79 struct libcfs_ioctl_hdr hdr;
80 unsigned int subs;
81 unsigned int debug;
82};
83
84#define LIBCFS_IOC_INIT(data) \
85do { \
86 memset(&data, 0, sizeof(data)); \
87 data.ioc_version = LIBCFS_IOCTL_VERSION; \
88 data.ioc_len = sizeof(data); \
89} while (0)
90
91struct libcfs_ioctl_handler {
92 struct list_head item;
93 int (*handle_ioctl)(unsigned int cmd, struct libcfs_ioctl_data *data);
94};
95
96#define DECLARE_IOCTL_HANDLER(ident, func) \
97 struct libcfs_ioctl_handler ident = { \
98 LIST_HEAD_INIT(ident.item), \
99 func \
100 }
101
102
103#define LIBCFS_IOC_DEBUG_MASK _IOWR('f', 250, long)
104
105
106#define IOC_LIBCFS_TYPE 'e'
107#define IOC_LIBCFS_MIN_NR 30
108
109#define IOC_LIBCFS_PANIC _IOWR('e', 30, long)
110#define IOC_LIBCFS_CLEAR_DEBUG _IOWR('e', 31, long)
111#define IOC_LIBCFS_MARK_DEBUG _IOWR('e', 32, long)
112#define IOC_LIBCFS_MEMHOG _IOWR('e', 36, long)
113#define IOC_LIBCFS_PING_TEST _IOWR('e', 37, long)
114
115#define IOC_LIBCFS_GET_NI _IOWR('e', 50, long)
116#define IOC_LIBCFS_FAIL_NID _IOWR('e', 51, long)
117#define IOC_LIBCFS_ADD_ROUTE _IOWR('e', 52, long)
118#define IOC_LIBCFS_DEL_ROUTE _IOWR('e', 53, long)
119#define IOC_LIBCFS_GET_ROUTE _IOWR('e', 54, long)
120#define IOC_LIBCFS_NOTIFY_ROUTER _IOWR('e', 55, long)
121#define IOC_LIBCFS_UNCONFIGURE _IOWR('e', 56, long)
122#define IOC_LIBCFS_PORTALS_COMPATIBILITY _IOWR('e', 57, long)
123#define IOC_LIBCFS_LNET_DIST _IOWR('e', 58, long)
124#define IOC_LIBCFS_CONFIGURE _IOWR('e', 59, long)
125#define IOC_LIBCFS_TESTPROTOCOMPAT _IOWR('e', 60, long)
126#define IOC_LIBCFS_PING _IOWR('e', 61, long)
127#define IOC_LIBCFS_DEBUG_PEER _IOWR('e', 62, long)
128#define IOC_LIBCFS_LNETST _IOWR('e', 63, long)
129
130#define IOC_LIBCFS_REGISTER_MYNID _IOWR('e', 70, long)
131#define IOC_LIBCFS_CLOSE_CONNECTION _IOWR('e', 71, long)
132#define IOC_LIBCFS_PUSH_CONNECTION _IOWR('e', 72, long)
133#define IOC_LIBCFS_GET_CONN _IOWR('e', 73, long)
134#define IOC_LIBCFS_DEL_PEER _IOWR('e', 74, long)
135#define IOC_LIBCFS_ADD_PEER _IOWR('e', 75, long)
136#define IOC_LIBCFS_GET_PEER _IOWR('e', 76, long)
137#define IOC_LIBCFS_GET_TXDESC _IOWR('e', 77, long)
138#define IOC_LIBCFS_ADD_INTERFACE _IOWR('e', 78, long)
139#define IOC_LIBCFS_DEL_INTERFACE _IOWR('e', 79, long)
140#define IOC_LIBCFS_GET_INTERFACE _IOWR('e', 80, long)
141
142#define IOC_LIBCFS_MAX_NR 80
143
144static inline int libcfs_ioctl_packlen(struct libcfs_ioctl_data *data)
145{
146 int len = sizeof(*data);
147
148 len += cfs_size_round(data->ioc_inllen1);
149 len += cfs_size_round(data->ioc_inllen2);
150 return len;
151}
152
153static inline int libcfs_ioctl_is_invalid(struct libcfs_ioctl_data *data)
154{
155 if (data->ioc_len > (1<<30)) {
156 CERROR("LIBCFS ioctl: ioc_len larger than 1<<30\n");
157 return 1;
158 }
159 if (data->ioc_inllen1 > (1<<30)) {
160 CERROR("LIBCFS ioctl: ioc_inllen1 larger than 1<<30\n");
161 return 1;
162 }
163 if (data->ioc_inllen2 > (1<<30)) {
164 CERROR("LIBCFS ioctl: ioc_inllen2 larger than 1<<30\n");
165 return 1;
166 }
167 if (data->ioc_inlbuf1 && !data->ioc_inllen1) {
168 CERROR("LIBCFS ioctl: inlbuf1 pointer but 0 length\n");
169 return 1;
170 }
171 if (data->ioc_inlbuf2 && !data->ioc_inllen2) {
172 CERROR("LIBCFS ioctl: inlbuf2 pointer but 0 length\n");
173 return 1;
174 }
175 if (data->ioc_pbuf1 && !data->ioc_plen1) {
176 CERROR("LIBCFS ioctl: pbuf1 pointer but 0 length\n");
177 return 1;
178 }
179 if (data->ioc_pbuf2 && !data->ioc_plen2) {
180 CERROR("LIBCFS ioctl: pbuf2 pointer but 0 length\n");
181 return 1;
182 }
183 if (data->ioc_plen1 && !data->ioc_pbuf1) {
184 CERROR("LIBCFS ioctl: plen1 nonzero but no pbuf1 pointer\n");
185 return 1;
186 }
187 if (data->ioc_plen2 && !data->ioc_pbuf2) {
188 CERROR("LIBCFS ioctl: plen2 nonzero but no pbuf2 pointer\n");
189 return 1;
190 }
191 if ((__u32)libcfs_ioctl_packlen(data) != data->ioc_len) {
192 CERROR("LIBCFS ioctl: packlen != ioc_len\n");
193 return 1;
194 }
195 if (data->ioc_inllen1 &&
196 data->ioc_bulk[data->ioc_inllen1 - 1] != '\0') {
197 CERROR("LIBCFS ioctl: inlbuf1 not 0 terminated\n");
198 return 1;
199 }
200 if (data->ioc_inllen2 &&
201 data->ioc_bulk[cfs_size_round(data->ioc_inllen1) +
202 data->ioc_inllen2 - 1] != '\0') {
203 CERROR("LIBCFS ioctl: inlbuf2 not 0 terminated\n");
204 return 1;
205 }
206 return 0;
207}
208
209int libcfs_register_ioctl(struct libcfs_ioctl_handler *hand);
210int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand);
211int libcfs_ioctl_getdata(char *buf, char *end, void *arg);
212int libcfs_ioctl_popdata(void *arg, void *buf, int size);
213
214#endif
215