1 |
root |
1.1 |
#include "EXTERN.h" |
2 |
|
|
#include "perl.h" |
3 |
|
|
#include "XSUB.h" |
4 |
|
|
|
5 |
|
|
// C99 required |
6 |
|
|
|
7 |
|
|
#define ASN_BOOLEAN 0x01 |
8 |
|
|
#define ASN_INTEGER 0x02 |
9 |
|
|
#define ASN_BIT_STR 0x03 |
10 |
|
|
#define ASN_OCTET_STR 0x04 |
11 |
|
|
#define ASN_NULL 0x05 |
12 |
|
|
#define ASN_OBJECT_ID 0x06 |
13 |
|
|
#define ASN_SEQUENCE 0x10 |
14 |
|
|
#define ASN_SET 0x11 |
15 |
|
|
|
16 |
|
|
#define ASN_UNIVERSAL 0x00 |
17 |
|
|
#define ASN_APPLICATION 0x40 |
18 |
|
|
#define ASN_CONTEXT 0x80 |
19 |
|
|
#define ASN_PRIVATE 0xc0 |
20 |
|
|
|
21 |
|
|
#define ASN_PRIMITIVE 0x00 |
22 |
|
|
#define ASN_CONSTRUCTOR 0x20 |
23 |
|
|
|
24 |
|
|
#define ASN_LONG_LEN 0x80 |
25 |
|
|
#define ASN_EXTENSION_ID 0x1f |
26 |
|
|
#define ASN_BIT8 0x80 |
27 |
|
|
|
28 |
|
|
#define BENCHMARK |
29 |
|
|
|
30 |
|
|
static SV *msg; |
31 |
|
|
static int errflag; |
32 |
|
|
static U8 *buf, *cur; |
33 |
|
|
static STRLEN len, rem; |
34 |
|
|
|
35 |
|
|
static void |
36 |
|
|
error (const char *msg) |
37 |
|
|
{ |
38 |
|
|
errflag = 1; |
39 |
|
|
|
40 |
|
|
printf ("<<<%s>>>\n", msg);//D |
41 |
|
|
} |
42 |
|
|
|
43 |
|
|
static int |
44 |
|
|
need (int count) |
45 |
|
|
{ |
46 |
|
|
if (count < 0 || (int)rem < count) |
47 |
|
|
{ |
48 |
|
|
error ("Unexpected end of message buffer"); |
49 |
|
|
return 0; |
50 |
|
|
} |
51 |
|
|
|
52 |
|
|
return 1; |
53 |
|
|
} |
54 |
|
|
|
55 |
|
|
static U8 * |
56 |
|
|
getn (int count, const U8 *errres) |
57 |
|
|
{ |
58 |
|
|
if (!need (count)) |
59 |
|
|
return (U8 *)errres; |
60 |
|
|
|
61 |
|
|
U8 *res = cur; |
62 |
|
|
|
63 |
|
|
cur += count; |
64 |
|
|
rem -= count; |
65 |
|
|
|
66 |
|
|
return res; |
67 |
|
|
} |
68 |
|
|
|
69 |
|
|
static U8 |
70 |
|
|
get8 (void) |
71 |
|
|
{ |
72 |
|
|
if (rem <= 0) |
73 |
|
|
{ |
74 |
|
|
error ("Unexpected end of message buffer"); |
75 |
|
|
return 0; |
76 |
|
|
} |
77 |
|
|
|
78 |
|
|
rem--; |
79 |
|
|
return *cur++; |
80 |
|
|
} |
81 |
|
|
|
82 |
|
|
static U32 |
83 |
|
|
getb (void) |
84 |
|
|
{ |
85 |
|
|
U32 res = 0; |
86 |
|
|
|
87 |
|
|
for (;;) |
88 |
|
|
{ |
89 |
|
|
U8 c = get8 (); |
90 |
|
|
res = (res << 7) | (c & 0x7f); |
91 |
|
|
|
92 |
|
|
if (!(c & 0x80)) |
93 |
|
|
return res; |
94 |
|
|
} |
95 |
|
|
} |
96 |
|
|
|
97 |
|
|
#ifdef BENCHMARK |
98 |
|
|
static double t1; |
99 |
|
|
|
100 |
|
|
static double |
101 |
|
|
tstamp (void) |
102 |
|
|
{ |
103 |
|
|
struct timeval tv; |
104 |
|
|
gettimeofday (&tv, 0); |
105 |
|
|
return tv.tv_sec + tv.tv_usec * 0.000001; |
106 |
|
|
} |
107 |
|
|
#endif |
108 |
|
|
|
109 |
|
|
static U32 |
110 |
|
|
process_length (void) |
111 |
|
|
{ |
112 |
|
|
U32 res = get8 (); |
113 |
|
|
|
114 |
|
|
if (res & 0x80) |
115 |
|
|
{ |
116 |
|
|
int cnt = res & 0x7f; |
117 |
|
|
res = 0; |
118 |
|
|
|
119 |
|
|
switch (cnt) |
120 |
|
|
{ |
121 |
|
|
case 0: |
122 |
|
|
error ("Indefinite ASN.1 lengths not supported"); |
123 |
|
|
return 0; |
124 |
|
|
|
125 |
|
|
default: |
126 |
|
|
error ("ASN.1 length too long"); |
127 |
|
|
return 0; |
128 |
|
|
|
129 |
|
|
case 4: res = (res << 8) | get8 (); |
130 |
|
|
case 3: res = (res << 8) | get8 (); |
131 |
|
|
case 2: res = (res << 8) | get8 (); |
132 |
|
|
case 1: res = (res << 8) | get8 (); |
133 |
|
|
} |
134 |
|
|
} |
135 |
|
|
|
136 |
|
|
return res; |
137 |
|
|
} |
138 |
|
|
|
139 |
|
|
MODULE = Net::SNMP::XS PACKAGE = Net::SNMP::XS |
140 |
|
|
|
141 |
|
|
void |
142 |
|
|
set_msg (SV *msg_, SV *buf_) |
143 |
|
|
CODE: |
144 |
|
|
errflag = 0; |
145 |
|
|
msg = SvREFCNT_inc (msg_); |
146 |
|
|
buf = SvPVbyte (buf_, len); |
147 |
|
|
cur = buf; |
148 |
|
|
rem = len; |
149 |
|
|
#ifdef BENCHMARK |
150 |
|
|
t1 = tstamp (); |
151 |
|
|
#endif |
152 |
|
|
|
153 |
|
|
void |
154 |
|
|
clr_msg () |
155 |
|
|
CODE: |
156 |
|
|
SvREFCNT_dec (msg); |
157 |
|
|
buf = cur = ""; |
158 |
|
|
len = rem = 0; |
159 |
|
|
#ifdef BENCHMARK |
160 |
|
|
printf ("%f\n", tstamp () - t1);//D |
161 |
|
|
#endif |
162 |
|
|
|
163 |
|
|
MODULE = Net::SNMP::XS PACKAGE = Net::SNMP::Message |
164 |
|
|
|
165 |
|
|
void |
166 |
|
|
_buffer_get (SV *self, int count = -1) |
167 |
|
|
PPCODE: |
168 |
|
|
{ |
169 |
|
|
// grrr. |
170 |
|
|
if (count < 0) |
171 |
|
|
{ |
172 |
|
|
hv_delete ((HV *)SvRV (self), "_index" , 6, G_DISCARD); |
173 |
|
|
hv_delete ((HV *)SvRV (self), "_length", 7, G_DISCARD); |
174 |
|
|
SV **svp = hv_fetch ((HV *)SvRV (self), "_buffer", 7, 1); |
175 |
|
|
XPUSHs (sv_2mortal (newSVsv (*svp))); |
176 |
|
|
sv_setpvn (*svp, "", 0); |
177 |
|
|
XSRETURN (1); |
178 |
|
|
} |
179 |
|
|
|
180 |
|
|
char *data = getn (count, 0); |
181 |
|
|
|
182 |
|
|
if (data) |
183 |
|
|
XPUSHs (sv_2mortal (newSVpvn (data, count))); |
184 |
|
|
} |
185 |
|
|
|
186 |
|
|
U32 |
187 |
|
|
index (SV *self, int ndx = -1) |
188 |
|
|
CODE: |
189 |
|
|
{ |
190 |
|
|
if (ndx >= 0 && ndx < len) |
191 |
|
|
{ |
192 |
|
|
cur = buf + ndx; |
193 |
|
|
rem = len - ndx; |
194 |
|
|
} |
195 |
|
|
|
196 |
|
|
RETVAL = cur - buf; |
197 |
|
|
} |
198 |
|
|
OUTPUT: |
199 |
|
|
RETVAL |
200 |
|
|
|
201 |
|
|
U32 |
202 |
|
|
_process_length (SV *self, ...) |
203 |
|
|
ALIAS: |
204 |
|
|
_process_sequence = 1 |
205 |
|
|
CODE: |
206 |
|
|
RETVAL = process_length (); |
207 |
|
|
OUTPUT: |
208 |
|
|
RETVAL |
209 |
|
|
|
210 |
|
|
I32 |
211 |
|
|
_process_integer32 (SV *self, ...) |
212 |
|
|
ALIAS: |
213 |
|
|
_process_counter = 0 |
214 |
|
|
_process_gauge = 0 |
215 |
|
|
CODE: |
216 |
|
|
{ |
217 |
|
|
U32 length = process_length (); |
218 |
|
|
|
219 |
|
|
if (length <= 0) |
220 |
|
|
{ |
221 |
|
|
error ("INTEGER32 length equal to zero"); |
222 |
|
|
XSRETURN_UNDEF; |
223 |
|
|
} |
224 |
|
|
|
225 |
|
|
U8 *data = getn (length, 0); |
226 |
|
|
|
227 |
|
|
if (!data) |
228 |
|
|
XSRETURN_UNDEF; |
229 |
|
|
|
230 |
|
|
if (length > 5 || (length > 4 && data [0])) |
231 |
|
|
{ |
232 |
|
|
error ("INTEGER32 length too long"); |
233 |
|
|
XSRETURN_UNDEF; |
234 |
|
|
} |
235 |
|
|
|
236 |
|
|
U32 res = data [0] & 0x80 ? 0xffffffff : 0; |
237 |
|
|
|
238 |
|
|
while (length--) |
239 |
|
|
res = (res << 8) | *data++; |
240 |
|
|
|
241 |
|
|
RETVAL = res; |
242 |
|
|
} |
243 |
|
|
OUTPUT: |
244 |
|
|
RETVAL |
245 |
|
|
|
246 |
|
|
SV * |
247 |
|
|
_process_object_identifier (SV *self, ...) |
248 |
|
|
CODE: |
249 |
|
|
{ |
250 |
|
|
U32 length = process_length (); |
251 |
|
|
|
252 |
|
|
if (length <= 0) |
253 |
|
|
{ |
254 |
|
|
error ("OBJECT IDENTIFIER length equal to zero"); |
255 |
|
|
XSRETURN_UNDEF; |
256 |
|
|
} |
257 |
|
|
|
258 |
|
|
U8 *end = cur + length; |
259 |
|
|
U32 w = getb (); |
260 |
|
|
|
261 |
|
|
//TODO: leading_dots |
262 |
|
|
|
263 |
|
|
RETVAL = newSVpvf (".%d.%d", (int)w / 40, (int)w % 40); |
264 |
|
|
|
265 |
|
|
while (cur < end) |
266 |
|
|
{ |
267 |
|
|
w = getb (); |
268 |
|
|
sv_catpvf (RETVAL, ".%u", (unsigned int)w); |
269 |
|
|
} |
270 |
|
|
} |
271 |
|
|
OUTPUT: |
272 |
|
|
RETVAL |
273 |
|
|
|
274 |
|
|
SV * |
275 |
|
|
_process_octet_string (SV *self, ...) |
276 |
|
|
ALIAS: |
277 |
|
|
_process_opaque = 0 |
278 |
|
|
CODE: |
279 |
|
|
{ |
280 |
|
|
U32 length = process_length (); |
281 |
|
|
|
282 |
|
|
U8 *data = getn (length, 0); |
283 |
|
|
if (!data) |
284 |
|
|
{ |
285 |
|
|
error ("OCTET STRING too long"); |
286 |
|
|
XSRETURN_UNDEF; |
287 |
|
|
} |
288 |
|
|
|
289 |
|
|
RETVAL = newSVpvn (data, length); |
290 |
|
|
} |
291 |
|
|
OUTPUT: |
292 |
|
|
RETVAL |
293 |
|
|
|
294 |
|
|
SV * |
295 |
|
|
_process_ipaddress (SV *self, ...) |
296 |
|
|
CODE: |
297 |
|
|
{ |
298 |
|
|
U32 length = process_length (); |
299 |
|
|
if (length != 4) |
300 |
|
|
{ |
301 |
|
|
error ("IP ADDRESS length not four"); |
302 |
|
|
XSRETURN_UNDEF; |
303 |
|
|
} |
304 |
|
|
|
305 |
|
|
U8 *data = getn (4, "\x00\x00\x00\x00"); |
306 |
|
|
RETVAL = newSVpvf ("%d.%d.%d.%d", data [0], data [1], data [2], data [3]); |
307 |
|
|
} |
308 |
|
|
OUTPUT: |
309 |
|
|
RETVAL |
310 |
|
|
|