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6054c1eb | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
aba5acdf SH |
2 | /* |
3 | * q_atm.c ATM. | |
4 | * | |
5 | * Hacked 1998-2000 by Werner Almesberger, EPFL ICA | |
6 | * | |
7 | */ | |
8 | ||
9 | #include <stdio.h> | |
10 | #include <stdlib.h> | |
11 | #include <unistd.h> | |
12 | #include <ctype.h> | |
aba5acdf SH |
13 | #include <fcntl.h> |
14 | #include <sys/socket.h> | |
15 | #include <sys/ioctl.h> | |
16 | #include <netinet/in.h> | |
17 | #include <arpa/inet.h> | |
18 | #include <string.h> | |
19 | #include <atm.h> | |
20 | #include <linux/atmdev.h> | |
21 | #include <linux/atmarp.h> | |
22 | ||
23 | #include "utils.h" | |
24 | #include "tc_util.h" | |
25 | ||
26 | ||
27 | #define MAX_HDR_LEN 64 | |
28 | ||
aba5acdf | 29 | |
859af0a5 SH |
30 | static int atm_parse_opt(struct qdisc_util *qu, int argc, char **argv, |
31 | struct nlmsghdr *n, const char *dev) | |
aba5acdf SH |
32 | { |
33 | if (argc) { | |
32a121cb | 34 | fprintf(stderr, "Usage: atm\n"); |
aba5acdf SH |
35 | return -1; |
36 | } | |
37 | return 0; | |
38 | } | |
39 | ||
40 | ||
41 | static void explain(void) | |
42 | { | |
8589eb4e MC |
43 | fprintf(stderr, |
44 | "Usage: ... atm ( pvc ADDR | svc ADDR [ sap SAP ] ) [ qos QOS ] [ sndbuf BYTES ]\n" | |
45 | " [ hdr HEX... ] [ excess ( CLASSID | clp ) ] [ clip ]\n"); | |
aba5acdf SH |
46 | } |
47 | ||
48 | ||
49 | static int atm_parse_class_opt(struct qdisc_util *qu, int argc, char **argv, | |
927e3cfb | 50 | struct nlmsghdr *n, const char *dev) |
aba5acdf | 51 | { |
d17b136f | 52 | struct sockaddr_atmsvc addr = {}; |
aba5acdf SH |
53 | struct atm_qos qos; |
54 | struct atm_sap sap; | |
55 | unsigned char hdr[MAX_HDR_LEN]; | |
56 | __u32 excess = 0; | |
57 | struct rtattr *tail; | |
58 | int sndbuf = 0; | |
59 | int hdr_len = -1; | |
60 | int set_clip = 0; | |
61 | int s; | |
62 | ||
32a121cb SH |
63 | (void) text2qos("aal5,ubr:sdu=9180,rx:none", &qos, 0); |
64 | (void) text2sap("blli:l2=iso8802", &sap, 0); | |
aba5acdf | 65 | while (argc > 0) { |
32a121cb | 66 | if (!strcmp(*argv, "pvc")) { |
aba5acdf | 67 | NEXT_ARG(); |
32a121cb SH |
68 | if (text2atm(*argv, (struct sockaddr *) &addr, |
69 | sizeof(addr), T2A_PVC | T2A_NAME) < 0) { | |
aba5acdf SH |
70 | explain(); |
71 | return -1; | |
72 | } | |
32a121cb | 73 | } else if (!strcmp(*argv,"svc")) { |
aba5acdf | 74 | NEXT_ARG(); |
32a121cb SH |
75 | if (text2atm(*argv, (struct sockaddr *) &addr, |
76 | sizeof(addr), T2A_SVC | T2A_NAME) < 0) { | |
aba5acdf SH |
77 | explain(); |
78 | return -1; | |
79 | } | |
32a121cb | 80 | } else if (!strcmp(*argv,"qos")) { |
aba5acdf | 81 | NEXT_ARG(); |
32a121cb | 82 | if (text2qos(*argv, &qos, 0) < 0) { |
aba5acdf SH |
83 | explain(); |
84 | return -1; | |
85 | } | |
32a121cb | 86 | } else if (!strcmp(*argv,"sndbuf")) { |
aba5acdf SH |
87 | char *end; |
88 | ||
89 | NEXT_ARG(); | |
32a121cb | 90 | sndbuf = strtol(*argv, &end, 0); |
aba5acdf SH |
91 | if (*end) { |
92 | explain(); | |
93 | return -1; | |
94 | } | |
32a121cb | 95 | } else if (!strcmp(*argv,"sap")) { |
aba5acdf SH |
96 | NEXT_ARG(); |
97 | if (addr.sas_family != AF_ATMSVC || | |
32a121cb | 98 | text2sap(*argv, &sap, T2A_NAME) < 0) { |
aba5acdf SH |
99 | explain(); |
100 | return -1; | |
101 | } | |
32a121cb | 102 | } else if (!strcmp(*argv,"hdr")) { |
aba5acdf SH |
103 | unsigned char *ptr; |
104 | char *walk; | |
105 | ||
106 | NEXT_ARG(); | |
107 | ptr = hdr; | |
108 | for (walk = *argv; *walk; walk++) { | |
109 | int tmp; | |
110 | ||
111 | if (ptr == hdr+MAX_HDR_LEN) { | |
32a121cb | 112 | fprintf(stderr, "header is too long\n"); |
aba5acdf SH |
113 | return -1; |
114 | } | |
115 | if (*walk == '.') continue; | |
116 | if (!isxdigit(walk[0]) || !walk[1] || | |
117 | !isxdigit(walk[1])) { | |
118 | explain(); | |
119 | return -1; | |
120 | } | |
32a121cb | 121 | sscanf(walk, "%2x", &tmp); |
aba5acdf SH |
122 | *ptr++ = tmp; |
123 | walk++; | |
124 | } | |
125 | hdr_len = ptr-hdr; | |
32a121cb | 126 | } else if (!strcmp(*argv,"excess")) { |
aba5acdf | 127 | NEXT_ARG(); |
32a121cb SH |
128 | if (!strcmp(*argv, "clp")) excess = 0; |
129 | else if (get_tc_classid(&excess, *argv)) { | |
aba5acdf SH |
130 | explain(); |
131 | return -1; | |
132 | } | |
32a121cb | 133 | } else if (!strcmp(*argv,"clip")) { |
aba5acdf | 134 | set_clip = 1; |
32a121cb | 135 | } else { |
aba5acdf SH |
136 | explain(); |
137 | return 1; | |
138 | } | |
139 | argc--; | |
140 | argv++; | |
141 | } | |
32a121cb | 142 | s = socket(addr.sas_family, SOCK_DGRAM, 0); |
aba5acdf SH |
143 | if (s < 0) { |
144 | perror("socket"); | |
145 | return -1; | |
146 | } | |
32a121cb | 147 | if (setsockopt(s, SOL_ATM, SO_ATMQOS, &qos, sizeof(qos)) < 0) { |
aba5acdf SH |
148 | perror("SO_ATMQOS"); |
149 | return -1; | |
150 | } | |
151 | if (sndbuf) | |
32a121cb | 152 | if (setsockopt(s, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf)) < 0) { |
aba5acdf SH |
153 | perror("SO_SNDBUF"); |
154 | return -1; | |
155 | } | |
32a121cb SH |
156 | if (addr.sas_family == AF_ATMSVC && setsockopt(s, SOL_ATM, SO_ATMSAP, |
157 | &sap, sizeof(sap)) < 0) { | |
aba5acdf SH |
158 | perror("SO_ATMSAP"); |
159 | return -1; | |
160 | } | |
32a121cb | 161 | if (connect(s, (struct sockaddr *) &addr, addr.sas_family == AF_ATMPVC ? |
aba5acdf SH |
162 | sizeof(struct sockaddr_atmpvc) : sizeof(addr)) < 0) { |
163 | perror("connect"); | |
164 | return -1; | |
165 | } | |
166 | if (set_clip) | |
32a121cb | 167 | if (ioctl(s, ATMARP_MKIP, 0) < 0) { |
aba5acdf SH |
168 | perror("ioctl ATMARP_MKIP"); |
169 | return -1; | |
170 | } | |
c14f9d92 | 171 | tail = addattr_nest(n, 1024, TCA_OPTIONS); |
32a121cb | 172 | addattr_l(n, 1024, TCA_ATM_FD, &s, sizeof(s)); |
c14f9d92 SP |
173 | if (excess) |
174 | addattr_l(n, 1024, TCA_ATM_EXCESS, &excess, sizeof(excess)); | |
175 | if (hdr_len != -1) | |
176 | addattr_l(n, 1024, TCA_ATM_HDR, hdr, hdr_len); | |
177 | addattr_nest_end(n, tail); | |
aba5acdf SH |
178 | return 0; |
179 | } | |
180 | ||
181 | ||
182 | ||
183 | static int atm_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt) | |
184 | { | |
185 | struct rtattr *tb[TCA_ATM_MAX+1]; | |
186 | char buffer[MAX_ATM_ADDR_LEN+1]; | |
187 | ||
3b3ecd31 | 188 | if (opt == NULL) |
189 | return 0; | |
190 | ||
191 | parse_rtattr_nested(tb, TCA_ATM_MAX, opt); | |
aba5acdf SH |
192 | if (tb[TCA_ATM_ADDR]) { |
193 | if (RTA_PAYLOAD(tb[TCA_ATM_ADDR]) < | |
194 | sizeof(struct sockaddr_atmpvc)) | |
32a121cb | 195 | fprintf(stderr, "ATM: address too short\n"); |
aba5acdf | 196 | else { |
32a121cb SH |
197 | if (atm2text(buffer, MAX_ATM_ADDR_LEN, |
198 | RTA_DATA(tb[TCA_ATM_ADDR]), A2T_PRETTY | A2T_NAME) < | |
199 | 0) fprintf(stderr, "atm2text error\n"); | |
200 | fprintf(f, "pvc %s ", buffer); | |
aba5acdf SH |
201 | } |
202 | } | |
203 | if (tb[TCA_ATM_HDR]) { | |
204 | int i; | |
ff24746c | 205 | const __u8 *hdr = RTA_DATA(tb[TCA_ATM_HDR]); |
aba5acdf | 206 | |
32a121cb | 207 | fprintf(f, "hdr"); |
aba5acdf | 208 | for (i = 0; i < RTA_PAYLOAD(tb[TCA_ATM_HDR]); i++) |
32a121cb SH |
209 | fprintf(f, "%c%02x", i ? '.' : ' ', hdr[i]); |
210 | if (!i) fprintf(f, " ."); | |
211 | fprintf(f, " "); | |
aba5acdf SH |
212 | } |
213 | if (tb[TCA_ATM_EXCESS]) { | |
214 | __u32 excess; | |
215 | ||
216 | if (RTA_PAYLOAD(tb[TCA_ATM_EXCESS]) < sizeof(excess)) | |
32a121cb | 217 | fprintf(stderr, "ATM: excess class ID too short\n"); |
aba5acdf | 218 | else { |
ff24746c | 219 | excess = rta_getattr_u32(tb[TCA_ATM_EXCESS]); |
32a121cb | 220 | if (!excess) fprintf(f, "excess clp "); |
aba5acdf SH |
221 | else { |
222 | char buf[64]; | |
223 | ||
32a121cb SH |
224 | print_tc_classid(buf, sizeof(buf), excess); |
225 | fprintf(f, "excess %s ", buf); | |
aba5acdf SH |
226 | } |
227 | } | |
228 | } | |
229 | if (tb[TCA_ATM_STATE]) { | |
230 | static const char *map[] = { ATM_VS2TXT_MAP }; | |
231 | int state; | |
232 | ||
233 | if (RTA_PAYLOAD(tb[TCA_ATM_STATE]) < sizeof(state)) | |
32a121cb | 234 | fprintf(stderr, "ATM: state field too short\n"); |
aba5acdf | 235 | else { |
a59b6162 | 236 | state = rta_getattr_u32(tb[TCA_ATM_STATE]); |
32a121cb | 237 | fprintf(f, "%s ", map[state]); |
aba5acdf SH |
238 | } |
239 | } | |
240 | return 0; | |
241 | } | |
242 | ||
243 | ||
95812b56 | 244 | struct qdisc_util atm_qdisc_util = { |
32a121cb | 245 | .id = "atm", |
f2f99e2e SH |
246 | .parse_qopt = atm_parse_opt, |
247 | .print_qopt = atm_print_opt, | |
248 | .parse_copt = atm_parse_class_opt, | |
249 | .print_copt = atm_print_opt, | |
aba5acdf | 250 | }; |