kernel - VM PAGER part 2/2 - Expand vinitvmio() and vnode_pager_alloc()
[dragonfly.git] / lib / libatm / atm_addr.c
blobd41e87b0dabd9c62d2c842df553583c718b4b958
1 /*
3 * ===================================
4 * HARP | Host ATM Research Platform
5 * ===================================
8 * This Host ATM Research Platform ("HARP") file (the "Software") is
9 * made available by Network Computing Services, Inc. ("NetworkCS")
10 * "AS IS". NetworkCS does not provide maintenance, improvements or
11 * support of any kind.
13 * NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
14 * INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
15 * AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
16 * SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
17 * In no event shall NetworkCS be responsible for any damages, including
18 * but not limited to consequential damages, arising from or relating to
19 * any use of the Software or related support.
21 * Copyright 1994-1998 Network Computing Services, Inc.
23 * Copies of this Software may be made, however, the above copyright
24 * notice must be reproduced on all copies.
26 * $FreeBSD: src/lib/libatm/atm_addr.c,v 1.4.2.1 2001/09/28 16:52:10 dillon Exp $
27 * $DragonFly: src/lib/libatm/atm_addr.c,v 1.4 2008/09/30 16:57:04 swildner Exp $
31 * User Space Library Functions
32 * ----------------------------
34 * ATM address utility functions
38 #include <sys/types.h>
39 #include <sys/param.h>
40 #include <sys/socket.h>
41 #include <net/if.h>
42 #include <netinet/in.h>
43 #include <netatm/port.h>
44 #include <netatm/atm.h>
45 #include <netatm/atm_if.h>
46 #include <netatm/atm_sap.h>
47 #include <netatm/atm_sys.h>
48 #include <netatm/atm_ioctl.h>
50 #include <stdio.h>
51 #include <string.h>
53 #include "libatm.h"
55 extern char *prog;
59 * Get NSAP, NSAP prefix or MAC address
61 * Arguments:
62 * in pointer to an address in ASCII
63 * out pointer to a buffer for the converted address
64 * len the length of the output buffer
66 * Returns:
67 * 0 error in format
68 * len the length of the data in the output buffer
71 int
72 get_hex_atm_addr(char *in, u_char *out, int len)
74 int c_type, c_value, i, out_len, state, val = 0;
77 * Character table
79 static struct {
80 char c;
81 int type;
82 int value;
83 } char_table[] = {
84 {'.', 0, 0}, /* Type 0 -- period */
85 {':', 0, 0}, /* Type 0 -- colon */
86 {'0', 1, 0}, /* Type 1 -- hex digit */
87 {'1', 1, 1},
88 {'2', 1, 2},
89 {'3', 1, 3},
90 {'4', 1, 4},
91 {'5', 1, 5},
92 {'6', 1, 6},
93 {'7', 1, 7},
94 {'8', 1, 8},
95 {'9', 1, 9},
96 {'a', 1, 10},
97 {'b', 1, 11},
98 {'c', 1, 12},
99 {'d', 1, 13},
100 {'e', 1, 14},
101 {'f', 1, 15},
102 {'A', 1, 10},
103 {'B', 1, 11},
104 {'C', 1, 12},
105 {'D', 1, 13},
106 {'E', 1, 14},
107 {'F', 1, 15},
108 {'\0', 2, 0}, /* Type 2 -- end of input */
112 * State table
114 static struct {
115 int action;
116 int state;
117 } state_table[3][3] = {
118 /* Period Hex End */
119 { { 0, 0 }, { 1, 1 }, { 2, 0} }, /* Init */
120 { { 4, 0 }, { 3, 2 }, { 4, 0} }, /* C1 */
121 { { 0, 2 }, { 1, 1 }, { 2, 0} }, /* C2 */
125 * Initialize
127 state = 0;
128 out_len = 0;
129 if (!strncasecmp(in, "0x", 2)) {
130 in += 2;
134 * Loop through input until state table says to return
136 while (1) {
138 * Get the character type and value
140 for (i=0; char_table[i].c; i++)
141 if (char_table[i].c == *in)
142 break;
143 if (char_table[i].c != *in)
144 return(0);
145 c_type = char_table[i].type;
146 c_value = char_table[i].value;
149 * Process next character based on state and type
151 switch(state_table[state][c_type].action) {
152 case 0:
154 * Ignore the character
156 break;
158 case 1:
160 * Save the character's value
162 val = c_value;
163 break;
165 case 2:
167 * Return the assembled NSAP
169 return(out_len);
171 case 3:
173 * Assemble and save the output byte
175 val = val << 4;
176 val += c_value;
177 out[out_len] = (u_char) val;
178 out_len++;
179 break;
181 case 4:
183 * Invalid input sequence
185 return(0);
187 default:
188 return(0);
192 * Set the next state and go on to the next character
194 state = state_table[state][c_type].state;
195 in++;
201 * Format an ATM address into a string
203 * Arguments:
204 * addr pointer to an atm address
206 * Returns:
207 * none
210 char *
211 format_atm_addr(Atm_addr *addr)
213 int i;
214 char *nsap_format;
215 Atm_addr_nsap *atm_nsap;
216 Atm_addr_e164 *atm_e164;
217 Atm_addr_spans *atm_spans;
218 Atm_addr_pvc *atm_pvc;
219 static char str[256];
220 union {
221 int w;
222 char c[4];
223 } u1, u2;
225 static char nsap_format_DCC[] = "0x%02x.%02x%02x.%02x.%02x%02x%02x.%02x%02x.%02x%02x.%02x%02x.%02x%02x%02x%02x%02x%02x.%02x";
226 static char nsap_format_ICD[] = "0x%02x.%02x%02x.%02x.%02x%02x%02x.%02x%02x.%02x%02x.%02x%02x.%02x%02x%02x%02x%02x%02x.%02x";
227 static char nsap_format_E164[] = "0x%02x.%02x%02x%02x%02x%02x%02x%02x%02x.%02x%02x.%02x%02x.%02x%02x%02x%02x%02x%02x.%02x";
230 * Clear the returned string
232 UM_ZERO(str, sizeof(str));
233 strlcpy(str, "-", sizeof(str));
236 * Print format is determined by address type
238 switch (addr->address_format) {
239 case T_ATM_ENDSYS_ADDR:
240 atm_nsap = (Atm_addr_nsap *)addr->address;
241 switch(atm_nsap->aan_afi) {
242 default:
243 case AFI_DCC:
244 nsap_format = nsap_format_DCC;
245 break;
246 case AFI_ICD:
247 nsap_format = nsap_format_ICD;
248 break;
249 case AFI_E164:
250 nsap_format = nsap_format_E164;
251 break;
253 sprintf(str, nsap_format,
254 atm_nsap->aan_afi,
255 atm_nsap->aan_afspec[0],
256 atm_nsap->aan_afspec[1],
257 atm_nsap->aan_afspec[2],
258 atm_nsap->aan_afspec[3],
259 atm_nsap->aan_afspec[4],
260 atm_nsap->aan_afspec[5],
261 atm_nsap->aan_afspec[6],
262 atm_nsap->aan_afspec[7],
263 atm_nsap->aan_afspec[8],
264 atm_nsap->aan_afspec[9],
265 atm_nsap->aan_afspec[10],
266 atm_nsap->aan_afspec[11],
267 atm_nsap->aan_esi[0],
268 atm_nsap->aan_esi[1],
269 atm_nsap->aan_esi[2],
270 atm_nsap->aan_esi[3],
271 atm_nsap->aan_esi[4],
272 atm_nsap->aan_esi[5],
273 atm_nsap->aan_sel);
274 break;
276 case T_ATM_E164_ADDR:
277 atm_e164 = (Atm_addr_e164 *)addr->address;
278 for(i=0; i<addr->address_length; i++) {
279 sprintf(&str[strlen(str)], "%c",
280 atm_e164->aae_addr[i]);
282 break;
284 case T_ATM_SPANS_ADDR:
286 * Print SPANS address as two words, xxxx.yyyy
288 atm_spans = (Atm_addr_spans *)addr->address;
289 u1.c[0] = atm_spans->aas_addr[0];
290 u1.c[1] = atm_spans->aas_addr[1];
291 u1.c[2] = atm_spans->aas_addr[2];
292 u1.c[3] = atm_spans->aas_addr[3];
294 u2.c[0] = atm_spans->aas_addr[4];
295 u2.c[1] = atm_spans->aas_addr[5];
296 u2.c[2] = atm_spans->aas_addr[6];
297 u2.c[3] = atm_spans->aas_addr[7];
299 if (!(u1.w == 0 && u2.w == 0))
300 sprintf(str, "0x%08lx.%08lx", ntohl(u1.w), ntohl(u2.w));
301 break;
303 case T_ATM_PVC_ADDR:
305 * Print PVC as VPI, VCI
307 atm_pvc = (Atm_addr_pvc *)addr->address;
308 sprintf(str, "%d, %d",
309 ATM_PVC_GET_VPI(atm_pvc),
310 ATM_PVC_GET_VCI(atm_pvc));
311 break;
313 case T_ATM_ABSENT:
314 default:
315 break;
318 return(str);