1: /*
2: * Zebra configuration command interface routine
3: * Copyright (C) 1997, 98 Kunihiro Ishiguro
4: *
5: * This file is part of GNU Zebra.
6: *
7: * GNU Zebra is free software; you can redistribute it and/or modify
8: * it under the terms of the GNU General Public License as published
9: * by the Free Software Foundation; either version 2, or (at your
10: * option) any later version.
11: *
12: * GNU Zebra is distributed in the hope that it will be useful, but
13: * WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15: * General Public License for more details.
16: *
17: * You should have received a copy of the GNU General Public License
18: * along with GNU Zebra; see the file COPYING. If not, write to the
19: * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20: * Boston, MA 02111-1307, USA.
21: */
22:
23: #ifndef _ZEBRA_COMMAND_H
24: #define _ZEBRA_COMMAND_H
25:
26: #include "vector.h"
27: #include "vty.h"
28: #include "lib/route_types.h"
29:
30: /* Host configuration variable */
31: struct host
32: {
33: /* Host name of this router. */
34: char *name;
35:
36: /* Password for vty interface. */
37: char *password;
38: char *password_encrypt;
39:
40: /* Enable password */
41: char *enable;
42: char *enable_encrypt;
43:
44: /* System wide terminal lines. */
45: int lines;
46:
47: /* Log filename. */
48: char *logfile;
49:
50: /* config file name of this host */
51: char *config;
52:
53: /* Flags for services */
54: int advanced;
55: int encrypt;
56:
57: /* Banner configuration. */
58: const char *motd;
59: char *motdfile;
60: };
61:
62: /* There are some command levels which called from command node. */
63: enum node_type
64: {
65: AUTH_NODE, /* Authentication mode of vty interface. */
66: RESTRICTED_NODE, /* Restricted view mode */
67: VIEW_NODE, /* View node. Default mode of vty interface. */
68: AUTH_ENABLE_NODE, /* Authentication mode for change enable. */
69: ENABLE_NODE, /* Enable node. */
70: CONFIG_NODE, /* Config node. Default mode of config file. */
71: SERVICE_NODE, /* Service node. */
72: DEBUG_NODE, /* Debug node. */
73: AAA_NODE, /* AAA node. */
74: KEYCHAIN_NODE, /* Key-chain node. */
75: KEYCHAIN_KEY_NODE, /* Key-chain key node. */
76: INTERFACE_NODE, /* Interface mode node. */
77: ZEBRA_NODE, /* zebra connection node. */
78: TABLE_NODE, /* rtm_table selection node. */
79: RIP_NODE, /* RIP protocol mode node. */
80: RIPNG_NODE, /* RIPng protocol mode node. */
81: BABEL_NODE, /* Babel protocol mode node. */
82: BGP_NODE, /* BGP protocol mode which includes BGP4+ */
83: BGP_VPNV4_NODE, /* BGP MPLS-VPN PE exchange. */
84: BGP_IPV4_NODE, /* BGP IPv4 unicast address family. */
85: BGP_IPV4M_NODE, /* BGP IPv4 multicast address family. */
86: BGP_IPV6_NODE, /* BGP IPv6 address family */
87: BGP_IPV6M_NODE, /* BGP IPv6 multicast address family. */
88: OSPF_NODE, /* OSPF protocol mode */
89: OSPF6_NODE, /* OSPF protocol for IPv6 mode */
90: ISIS_NODE, /* ISIS protocol mode */
91: MASC_NODE, /* MASC for multicast. */
92: IRDP_NODE, /* ICMP Router Discovery Protocol mode. */
93: IP_NODE, /* Static ip route node. */
94: ACCESS_NODE, /* Access list node. */
95: PREFIX_NODE, /* Prefix list node. */
96: ACCESS_IPV6_NODE, /* Access list node. */
97: PREFIX_IPV6_NODE, /* Prefix list node. */
98: AS_LIST_NODE, /* AS list node. */
99: COMMUNITY_LIST_NODE, /* Community list node. */
100: RMAP_NODE, /* Route map node. */
101: SMUX_NODE, /* SNMP configuration node. */
102: DUMP_NODE, /* Packet dump node. */
103: FORWARDING_NODE, /* IP forwarding node. */
104: PROTOCOL_NODE, /* protocol filtering node */
105: VTY_NODE, /* Vty node. */
106: };
107:
108: /* Node which has some commands and prompt string and configuration
109: function pointer . */
110: struct cmd_node
111: {
112: /* Node index. */
113: enum node_type node;
114:
115: /* Prompt character at vty interface. */
116: const char *prompt;
117:
118: /* Is this node's configuration goes to vtysh ? */
119: int vtysh;
120:
121: /* Node's configuration write function */
122: int (*func) (struct vty *);
123:
124: /* Vector of this node's command list. */
125: vector cmd_vector;
126: };
127:
128: enum
129: {
130: CMD_ATTR_DEPRECATED = 1,
131: CMD_ATTR_HIDDEN,
132: };
133:
134: /* Structure of command element. */
135: struct cmd_element
136: {
137: const char *string; /* Command specification by string. */
138: int (*func) (struct cmd_element *, struct vty *, int, const char *[]);
139: const char *doc; /* Documentation of this command. */
140: int daemon; /* Daemon to which this command belong. */
141: vector strvec; /* Pointing out each description vector. */
142: unsigned int cmdsize; /* Command index count. */
143: char *config; /* Configuration string */
144: vector subconfig; /* Sub configuration string */
145: u_char attr; /* Command attributes */
146: };
147:
148: /* Command description structure. */
149: struct desc
150: {
151: char *cmd; /* Command string. */
152: char *str; /* Command's description. */
153: };
154:
155: /* Return value of the commands. */
156: #define CMD_SUCCESS 0
157: #define CMD_WARNING 1
158: #define CMD_ERR_NO_MATCH 2
159: #define CMD_ERR_AMBIGUOUS 3
160: #define CMD_ERR_INCOMPLETE 4
161: #define CMD_ERR_EXEED_ARGC_MAX 5
162: #define CMD_ERR_NOTHING_TODO 6
163: #define CMD_COMPLETE_FULL_MATCH 7
164: #define CMD_COMPLETE_MATCH 8
165: #define CMD_COMPLETE_LIST_MATCH 9
166: #define CMD_SUCCESS_DAEMON 10
167:
168: /* Argc max counts. */
169: #define CMD_ARGC_MAX 25
170:
171: /* Turn off these macros when uisng cpp with extract.pl */
172: #ifndef VTYSH_EXTRACT_PL
173:
174: /* helper defines for end-user DEFUN* macros */
175: #define DEFUN_CMD_ELEMENT(funcname, cmdname, cmdstr, helpstr, attrs, dnum) \
176: struct cmd_element cmdname = \
177: { \
178: .string = cmdstr, \
179: .func = funcname, \
180: .doc = helpstr, \
181: .attr = attrs, \
182: .daemon = dnum, \
183: };
184:
185: #define DEFUN_CMD_FUNC_DECL(funcname) \
186: static int funcname (struct cmd_element *, struct vty *, int, const char *[]);
187:
188: #define DEFUN_CMD_FUNC_TEXT(funcname) \
189: static int funcname \
190: (struct cmd_element *self __attribute__ ((unused)), \
191: struct vty *vty __attribute__ ((unused)), \
192: int argc __attribute__ ((unused)), \
193: const char *argv[] __attribute__ ((unused)) )
194:
195: /* DEFUN for vty command interafce. Little bit hacky ;-). */
196: #define DEFUN(funcname, cmdname, cmdstr, helpstr) \
197: DEFUN_CMD_FUNC_DECL(funcname) \
198: DEFUN_CMD_ELEMENT(funcname, cmdname, cmdstr, helpstr, 0, 0) \
199: DEFUN_CMD_FUNC_TEXT(funcname)
200:
201: #define DEFUN_ATTR(funcname, cmdname, cmdstr, helpstr, attr) \
202: DEFUN_CMD_FUNC_DECL(funcname) \
203: DEFUN_CMD_ELEMENT(funcname, cmdname, cmdstr, helpstr, attr, 0) \
204: DEFUN_CMD_FUNC_TEXT(funcname)
205:
206: #define DEFUN_HIDDEN(funcname, cmdname, cmdstr, helpstr) \
207: DEFUN_ATTR (funcname, cmdname, cmdstr, helpstr, CMD_ATTR_HIDDEN)
208:
209: #define DEFUN_DEPRECATED(funcname, cmdname, cmdstr, helpstr) \
210: DEFUN_ATTR (funcname, cmdname, cmdstr, helpstr, CMD_ATTR_DEPRECATED) \
211:
212: /* DEFUN_NOSH for commands that vtysh should ignore */
213: #define DEFUN_NOSH(funcname, cmdname, cmdstr, helpstr) \
214: DEFUN(funcname, cmdname, cmdstr, helpstr)
215:
216: /* DEFSH for vtysh. */
217: #define DEFSH(daemon, cmdname, cmdstr, helpstr) \
218: DEFUN_CMD_ELEMENT(NULL, cmdname, cmdstr, helpstr, 0, daemon) \
219:
220: /* DEFUN + DEFSH */
221: #define DEFUNSH(daemon, funcname, cmdname, cmdstr, helpstr) \
222: DEFUN_CMD_FUNC_DECL(funcname) \
223: DEFUN_CMD_ELEMENT(funcname, cmdname, cmdstr, helpstr, 0, daemon) \
224: DEFUN_CMD_FUNC_TEXT(funcname)
225:
226: /* DEFUN + DEFSH with attributes */
227: #define DEFUNSH_ATTR(daemon, funcname, cmdname, cmdstr, helpstr, attr) \
228: DEFUN_CMD_FUNC_DECL(funcname) \
229: DEFUN_CMD_ELEMENT(funcname, cmdname, cmdstr, helpstr, attr, daemon) \
230: DEFUN_CMD_FUNC_TEXT(funcname)
231:
232: #define DEFUNSH_HIDDEN(daemon, funcname, cmdname, cmdstr, helpstr) \
233: DEFUNSH_ATTR (daemon, funcname, cmdname, cmdstr, helpstr, CMD_ATTR_HIDDEN)
234:
235: #define DEFUNSH_DEPRECATED(daemon, funcname, cmdname, cmdstr, helpstr) \
236: DEFUNSH_ATTR (daemon, funcname, cmdname, cmdstr, helpstr, CMD_ATTR_DEPRECATED)
237:
238: /* ALIAS macro which define existing command's alias. */
239: #define ALIAS(funcname, cmdname, cmdstr, helpstr) \
240: DEFUN_CMD_ELEMENT(funcname, cmdname, cmdstr, helpstr, 0, 0)
241:
242: #define ALIAS_ATTR(funcname, cmdname, cmdstr, helpstr, attr) \
243: DEFUN_CMD_ELEMENT(funcname, cmdname, cmdstr, helpstr, attr, 0)
244:
245: #define ALIAS_HIDDEN(funcname, cmdname, cmdstr, helpstr) \
246: DEFUN_CMD_ELEMENT(funcname, cmdname, cmdstr, helpstr, CMD_ATTR_HIDDEN, 0)
247:
248: #define ALIAS_DEPRECATED(funcname, cmdname, cmdstr, helpstr) \
249: DEFUN_CMD_ELEMENT(funcname, cmdname, cmdstr, helpstr, CMD_ATTR_DEPRECATED, 0)
250:
251: #define ALIAS_SH(daemon, funcname, cmdname, cmdstr, helpstr) \
252: DEFUN_CMD_ELEMENT(funcname, cmdname, cmdstr, helpstr, 0, daemon)
253:
254: #define ALIAS_SH_HIDDEN(daemon, funcname, cmdname, cmdstr, helpstr) \
255: DEFUN_CMD_ELEMENT(funcname, cmdname, cmdstr, helpstr, CMD_ATTR_HIDDEN, daemon)
256:
257: #define ALIAS_SH_DEPRECATED(daemon, funcname, cmdname, cmdstr, helpstr) \
258: DEFUN_CMD_ELEMENT(funcname, cmdname, cmdstr, helpstr, CMD_ATTR_DEPRECATED, daemon)
259:
260: #endif /* VTYSH_EXTRACT_PL */
261:
262: /* Some macroes */
263: #define CMD_OPTION(S) ((S[0]) == '[')
264: #define CMD_VARIABLE(S) (((S[0]) >= 'A' && (S[0]) <= 'Z') || ((S[0]) == '<'))
265: #define CMD_VARARG(S) ((S[0]) == '.')
266: #define CMD_RANGE(S) ((S[0] == '<'))
267:
268: #define CMD_IPV4(S) ((strcmp ((S), "A.B.C.D") == 0))
269: #define CMD_IPV4_PREFIX(S) ((strcmp ((S), "A.B.C.D/M") == 0))
270: #define CMD_IPV6(S) ((strcmp ((S), "X:X::X:X") == 0))
271: #define CMD_IPV6_PREFIX(S) ((strcmp ((S), "X:X::X:X/M") == 0))
272:
273: /* Common descriptions. */
274: #define SHOW_STR "Show running system information\n"
275: #define IP_STR "IP information\n"
276: #define IPV6_STR "IPv6 information\n"
277: #define NO_STR "Negate a command or set its defaults\n"
278: #define REDIST_STR "Redistribute information from another routing protocol\n"
279: #define CLEAR_STR "Reset functions\n"
280: #define RIP_STR "RIP information\n"
281: #define BGP_STR "BGP information\n"
282: #define OSPF_STR "OSPF information\n"
283: #define NEIGHBOR_STR "Specify neighbor router\n"
284: #define DEBUG_STR "Debugging functions (see also 'undebug')\n"
285: #define UNDEBUG_STR "Disable debugging functions (see also 'debug')\n"
286: #define ROUTER_STR "Enable a routing process\n"
287: #define AS_STR "AS number\n"
288: #define MBGP_STR "MBGP information\n"
289: #define MATCH_STR "Match values from routing table\n"
290: #define SET_STR "Set values in destination routing protocol\n"
291: #define OUT_STR "Filter outgoing routing updates\n"
292: #define IN_STR "Filter incoming routing updates\n"
293: #define V4NOTATION_STR "specify by IPv4 address notation(e.g. 0.0.0.0)\n"
294: #define OSPF6_NUMBER_STR "Specify by number\n"
295: #define INTERFACE_STR "Interface infomation\n"
296: #define IFNAME_STR "Interface name(e.g. ep0)\n"
297: #define IP6_STR "IPv6 Information\n"
298: #define OSPF6_STR "Open Shortest Path First (OSPF) for IPv6\n"
299: #define OSPF6_ROUTER_STR "Enable a routing process\n"
300: #define OSPF6_INSTANCE_STR "<1-65535> Instance ID\n"
301: #define SECONDS_STR "<1-65535> Seconds\n"
302: #define ROUTE_STR "Routing Table\n"
303: #define PREFIX_LIST_STR "Build a prefix list\n"
304: #define OSPF6_DUMP_TYPE_LIST \
305: "(neighbor|interface|area|lsa|zebra|config|dbex|spf|route|lsdb|redistribute|hook|asbr|prefix|abr)"
306: #define ISIS_STR "IS-IS information\n"
307: #define AREA_TAG_STR "[area tag]\n"
308:
309: #define CONF_BACKUP_EXT ".sav"
310:
311: /* IPv4 only machine should not accept IPv6 address for peer's IP
312: address. So we replace VTY command string like below. */
313: #ifdef HAVE_IPV6
314: #define NEIGHBOR_CMD "neighbor (A.B.C.D|X:X::X:X) "
315: #define NO_NEIGHBOR_CMD "no neighbor (A.B.C.D|X:X::X:X) "
316: #define NEIGHBOR_ADDR_STR "Neighbor address\nIPv6 address\n"
317: #define NEIGHBOR_CMD2 "neighbor (A.B.C.D|X:X::X:X|WORD) "
318: #define NO_NEIGHBOR_CMD2 "no neighbor (A.B.C.D|X:X::X:X|WORD) "
319: #define NEIGHBOR_ADDR_STR2 "Neighbor address\nNeighbor IPv6 address\nNeighbor tag\n"
320: #else
321: #define NEIGHBOR_CMD "neighbor A.B.C.D "
322: #define NO_NEIGHBOR_CMD "no neighbor A.B.C.D "
323: #define NEIGHBOR_ADDR_STR "Neighbor address\n"
324: #define NEIGHBOR_CMD2 "neighbor (A.B.C.D|WORD) "
325: #define NO_NEIGHBOR_CMD2 "no neighbor (A.B.C.D|WORD) "
326: #define NEIGHBOR_ADDR_STR2 "Neighbor address\nNeighbor tag\n"
327: #endif /* HAVE_IPV6 */
328:
329: /* Prototypes. */
330: extern void install_node (struct cmd_node *, int (*) (struct vty *));
331: extern void install_default (enum node_type);
332: extern void install_element (enum node_type, struct cmd_element *);
333: extern void sort_node (void);
334:
335: /* Concatenates argv[shift] through argv[argc-1] into a single NUL-terminated
336: string with a space between each element (allocated using
337: XMALLOC(MTYPE_TMP)). Returns NULL if shift >= argc. */
338: extern char *argv_concat (const char **argv, int argc, int shift);
339:
340: extern vector cmd_make_strvec (const char *);
341: extern void cmd_free_strvec (vector);
342: extern vector cmd_describe_command (vector, struct vty *, int *status);
343: extern char **cmd_complete_command (vector, struct vty *, int *status);
344: extern const char *cmd_prompt (enum node_type);
345: extern int config_from_file (struct vty *, FILE *);
346: extern enum node_type node_parent (enum node_type);
347: extern int cmd_execute_command (vector, struct vty *, struct cmd_element **, int);
348: extern int cmd_execute_command_strict (vector, struct vty *, struct cmd_element **);
349: extern void config_replace_string (struct cmd_element *, char *, ...);
350: extern void cmd_init (int);
351: extern void cmd_terminate (void);
352:
353: /* Export typical functions. */
354: extern struct cmd_element config_end_cmd;
355: extern struct cmd_element config_exit_cmd;
356: extern struct cmd_element config_quit_cmd;
357: extern struct cmd_element config_help_cmd;
358: extern struct cmd_element config_list_cmd;
359: extern char *host_config_file (void);
360: extern void host_config_set (char *);
361:
362: extern void print_version (const char *);
363:
364: /* struct host global, ick */
365: extern struct host host;
366:
367: /* "<cr>" global */
368: extern char *command_cr;
369: #endif /* _ZEBRA_COMMAND_H */
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