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1 diff -urN iproute-2.6.20-070313-orig/tc/Makefile iproute-2.6.20-070313/tc/Makefile
2 --- iproute-2.6.20-070313-orig/tc/Makefile      2007-03-13 22:50:56.000000000 +0100
3 +++ iproute-2.6.20-070313/tc/Makefile   2007-04-15 20:52:33.000000000 +0200
4 @@ -11,6 +11,7 @@
5  TCMODULES += q_tbf.o
6  TCMODULES += q_cbq.o
7  TCMODULES += q_netem.o
8 +TCMODULES += q_wrr.o
9  TCMODULES += q_choke.o
10  TCMODULES += q_sfb.o
11  TCMODULES += f_rsvp.o
12  TCMODULES += f_u32.o
13 diff -urN iproute-2.6.20-070313-orig/include/linux/pkt_sched.h iproute-2.6.20-070313/include/linux/pkt_sched.h
14 --- iproute-2.6.20-070313-orig/include/linux/pkt_sched.h        2007-03-13 22:50:56.000000000 +0100
15 +++ iproute-2.6.20-070313/include/linux/pkt_sched.h     2007-04-15 20:52:33.000000000 +0200
16 @@ -466,4 +498,116 @@
17  #define NETEM_DIST_SCALE       8192
18  #define NETEM_DIST_MAX         16384
19  
20 +/* WRR section */
21 +
22 +/* Other includes */
23 +#include <linux/if_ether.h>
24 +
25 +// A sub weight and of a class
26 +// All numbers are represented as parts of (2^64-1).
27 +struct tc_wrr_class_weight {
28 +       __u64 val;      // Current value                        (0 is not valid)
29 +       __u64 decr;     // Value pr bytes                       (2^64-1 is not valid)
30 +       __u64 incr;     // Value pr seconds                     (2^64-1 is not valid)
31 +       __u64 min;      // Minimal value                        (0 is not valid)
32 +       __u64 max;      // Minimal value                        (0 is not valid)
33 +
34 +// The time where the above information was correct:
35 +       time_t tim;
36 +};
37 +
38 +// Packet send when modifying a class:
39 +struct tc_wrr_class_modf {
40 +       // Not-valid values are ignored.
41 +       struct tc_wrr_class_weight weight1;
42 +       struct tc_wrr_class_weight weight2;
43 +};
44 +
45 +// Packet returned when quering a class:
46 +struct tc_wrr_class_stats {
47 +       char used;      // If this is false the information below is invalid
48 +
49 +       struct tc_wrr_class_modf class_modf;
50 +
51 +       unsigned char addr[ETH_ALEN];
52 +       char usemac;    // True if addr is a MAC address, else it is an IP address
53 +                       // (this value is only for convience, it is always the same
54 +                       //  value as in the qdisc)
55 +       int heappos;    // Current heap position or 0 if not in heap
56 +       __u64 penal_ls; // Penalty value in heap (ls)
57 +       __u64 penal_ms; // Penalty value in heap (ms)
58 +};
59 +
60 +// Qdisc-wide penalty information (boolean values - 2 not valid)
61 +struct tc_wrr_qdisc_weight {
62 +       char weight_mode;       // 0=No automatic change to weight
63 +                               // 1=Decrease normally
64 +                               // 2=Also multiply with number of machines
65 +                               // 3=Instead multiply with priority divided
66 +                               //   with priority of the other.
67 +                               // -1=no change
68 +};
69 +
70 +// Packet send when modifing a qdisc:
71 +struct tc_wrr_qdisc_modf {
72 +       // Not-valid values are ignored:
73 +       struct tc_wrr_qdisc_weight weight1;
74 +       struct tc_wrr_qdisc_weight weight2;
75 +};
76 +
77 +// Packet send when creating a qdisc:
78 +struct tc_wrr_qdisc_crt {
79 +       struct tc_wrr_qdisc_modf qdisc_modf;
80 +
81 +       char srcaddr;   // 1=lookup source, 0=lookup destination
82 +       char usemac;    // 1=Classify on MAC addresses, 0=classify on IP
83 +       char usemasq;   // 1=Classify based on masqgrading - only valid
84 +                       //   if usemac is zero
85 +       int bands_max;  // Maximal number of bands (i.e.: classes)
86 +       int proxy_maxconn;// If differnt from 0 then we support proxy remapping
87 +                       // of packets. And this is the number of maximal
88 +                       // concurrent proxy connections.
89 +};
90 +
91 +// Packet returned when quering a qdisc:
92 +struct tc_wrr_qdisc_stats {
93 +       struct tc_wrr_qdisc_crt qdisc_crt;
94 +       int proxy_curconn;
95 +       int nodes_in_heap;      // Current number of bands wanting to send something
96 +       int bands_cur;          // Current number of bands used (i.e.: MAC/IP addresses seen)
97 +       int bands_reused;       // Number of times this band has been reused.
98 +       int packets_requed;     // Number of times packets have been requeued.
99 +       __u64 priosum;          // Sum of priorities in heap where 1 is 2^32
100 +};
101 +
102 +struct tc_wrr_qdisc_modf_std {
103 +       // This indicates which of the tc_wrr_qdisc_modf structers this is:
104 +       char proxy; // 0=This struct
105 +
106 +       // Should we also change a class?
107 +       char change_class;
108 +
109 +       // Only valid if change_class is false
110 +       struct tc_wrr_qdisc_modf qdisc_modf;
111 +
112 +       // Only valid if change_class is true:
113 +       unsigned char addr[ETH_ALEN]; // Class to change (non-used bytes should be 0)
114 +       struct tc_wrr_class_modf class_modf; // The change
115 +};
116 +
117 +// Used for proxyrempping:
118 +struct tc_wrr_qdisc_modf_proxy {
119 +       // This indicates which of the tc_wrr_qdisc_modf structers this is:
120 +       char proxy;     // 1=This struct
121 +
122 +       // This is 1 if the proxyremap information should be reset
123 +       char reset;
124 +
125 +       // changec is the number of elements in changes.
126 +       int changec;
127 +
128 +       // This is an array of type ProxyRemapBlock:
129 +       long changes[0];
130 +};
131 +
132  /* DRR */
133
134 diff -urN iproute-2.6.20-070313-orig/tc/q_wrr.c iproute-2.6.20-070313/tc/q_wrr.c
135 --- iproute-2.6.20-070313-orig/tc/q_wrr.c       1970-01-01 01:00:00.000000000 +0100
136 +++ iproute-2.6.20-070313/tc/q_wrr.c    2007-04-15 20:52:33.000000000 +0200
137 @@ -0,0 +1,322 @@
138 +#include <stdio.h>
139 +#include <stdlib.h>
140 +#include <unistd.h>
141 +#include <syslog.h>
142 +#include <fcntl.h>
143 +#include <sys/socket.h>
144 +#include <netinet/in.h>
145 +#include <arpa/inet.h>
146 +#include <string.h>
147 +#include <math.h>
148 +
149 +#include "utils.h"
150 +#include "tc_util.h"
151 +
152 +#define usage() return(-1)
153 +
154 +// Returns -1 on error
155 +static int wrr_parse_qdisc_weight(int argc, char** argv, 
156 +                              struct tc_wrr_qdisc_modf* opt) {
157 +  int i;
158 +  
159 +  opt->weight1.weight_mode=-1;
160 +  opt->weight2.weight_mode=-1;
161 +  
162 +  for(i=0; i<argc; i++) {  
163 +    if(!memcmp(argv[i],"wmode1=",7)) {
164 +      opt->weight1.weight_mode=atoi(argv[i]+7);            
165 +    } else if(!memcmp(argv[i],"wmode2=",7)) {
166 +      opt->weight2.weight_mode=atoi(argv[i]+7);
167 +    } else {
168 +      printf("Usage: ... [wmode1=0|1|2|3] [wmode2=0|1|2|3]\n");
169 +      return -1;
170 +    }
171 +  }
172 +  return 0;
173 +}
174 +
175 +static int wrr_parse_class_modf(int argc, char** argv, 
176 +                                struct tc_wrr_class_modf* modf) {
177 +  int i;
178 +  
179 +  if(argc<1) {
180 +    fprintf(stderr, "Usage: ... [weight1=val] [decr1=val] [incr1=val] [min1=val] [max1=val] [val2=val] ...\n");
181 +    fprintf(stderr, "  The values can be floating point like 0.42 or divisions like 42/100\n");
182 +    return -1;
183 +  }
184 +  
185 +  // Set meaningless values:
186 +  modf->weight1.val=0;
187 +  modf->weight1.decr=(__u64)-1;
188 +  modf->weight1.incr=(__u64)-1;
189 +  modf->weight1.min=0;
190 +  modf->weight1.max=0;
191 +  modf->weight2.val=0;
192 +  modf->weight2.decr=(__u64)-1;
193 +  modf->weight2.incr=(__u64)-1;
194 +  modf->weight2.min=0;
195 +  modf->weight2.max=0;
196 +  
197 +  // And read values:
198 +  for(i=0; i<argc; i++) {
199 +    char arg[80];
200 +    char* name,*value1=0,*value2=0;
201 +    long double f_val1,f_val2=1,value;
202 +    if(strlen(argv[i])>=sizeof(arg)) {
203 +      fprintf(stderr,"Argument too long: %s\n",argv[i]);
204 +      return -1;
205 +    }
206 +    strcpy(arg,argv[i]);
207 +    
208 +    name=strtok(arg,"=");
209 +    if(name) value1=strtok(0,"/");
210 +    if(value1) value2=strtok(0,"");
211 +    
212 +    if(!value1) {
213 +      fprintf(stderr,"No = found in argument: %s\n",argv[i]);
214 +      return -1;
215 +    }
216 +    
217 +    f_val1=atof(value1);
218 +    if(value2) f_val2=atof(value2);    
219 +    
220 +    if(f_val2==0)  {
221 +      fprintf(stderr,"Division by 0\n");
222 +      return -1;
223 +    }
224 +        
225 +    value=f_val1/f_val2;    
226 +    if(value>1) value=1;
227 +    if(value<0) value=0;            
228 +    value*=((__u64)-1);
229 +    
230 +    // And find the value set
231 +    if(!strcmp(name,"weight1"))    modf->weight1.val=value;
232 +    else if(!strcmp(name,"decr1")) modf->weight1.decr=value;
233 +    else if(!strcmp(name,"incr1")) modf->weight1.incr=value;
234 +    else if(!strcmp(name,"min1"))  modf->weight1.min=value;
235 +    else if(!strcmp(name,"max1"))  modf->weight1.max=value;
236 +    else if(!strcmp(name,"weight2")) modf->weight2.val=value;
237 +    else if(!strcmp(name,"decr2")) modf->weight2.decr=value;
238 +    else if(!strcmp(name,"incr2")) modf->weight2.incr=value;
239 +    else if(!strcmp(name,"min2"))  modf->weight2.min=value;
240 +    else if(!strcmp(name,"max2"))  modf->weight2.max=value;
241 +    else {
242 +      fprintf(stderr,"illegal value: %s\n",name);
243 +      return -1;
244 +    }
245 +  }    
246 +
247 +  return 0;
248 +}
249 +
250 +static int wrr_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n)
251 +{
252 +  if(n->nlmsg_flags & NLM_F_CREATE) {
253 +    // This is a create request:
254 +    struct tc_wrr_qdisc_crt opt;
255 +       
256 +    int sour,dest,ip,mac,masq;
257 +
258 +    if(argc<4) {
259 +      fprintf(stderr, "Usage: ... wrr sour|dest ip|masq|mac maxclasses proxymaxcon [penalty-setup]\n");
260 +      return -1;
261 +    }    
262 +  
263 +    // Read sour/dest:
264 +    memset(&opt,0,sizeof(opt));
265 +    sour=!strcmp(argv[0],"sour");
266 +    dest=!strcmp(argv[0],"dest");      
267 +       
268 +    if(!sour && !dest) {
269 +      fprintf(stderr,"sour or dest must be specified\n");
270 +      return -1;
271 +    }  
272 +
273 +    // Read ip/mac
274 +    ip=!strcmp(argv[1],"ip");
275 +    mac=!strcmp(argv[1],"mac");        
276 +    masq=!strcmp(argv[1],"masq");      
277 +
278 +    if(!ip && !mac && !masq) {
279 +      fprintf(stderr,"ip, masq or mac must be specified\n");
280 +      return -1;
281 +    }  
282 +
283 +    opt.srcaddr=sour;          
284 +    opt.usemac=mac;
285 +    opt.usemasq=masq;          
286 +    opt.bands_max=atoi(argv[2]);
287 +    
288 +    opt.proxy_maxconn=atoi(argv[3]);
289 +    
290 +    // Read weights:
291 +    if(wrr_parse_qdisc_weight(argc-4,argv+4,&opt.qdisc_modf)<0) return -1;
292 +    if(opt.qdisc_modf.weight1.weight_mode==-1) opt.qdisc_modf.weight1.weight_mode=0;
293 +    if(opt.qdisc_modf.weight2.weight_mode==-1) opt.qdisc_modf.weight2.weight_mode=0;
294 +               
295 +    addattr_l(n, 1024, TCA_OPTIONS, &opt, sizeof(opt));
296 +  } else {
297 +    struct tc_wrr_qdisc_modf_std opt;
298 +    char qdisc,class;
299 +    
300 +    // This is a modify request:
301 +    if(argc<1) {
302 +      fprintf(stderr,"... qdisc ... or ... class ...\n");
303 +      return -1;
304 +    }
305 +            
306 +    qdisc=!strcmp(argv[0],"qdisc");
307 +    class=!strcmp(argv[0],"class");
308 +
309 +    if(!qdisc && !class) {
310 +      fprintf(stderr,"qdisc or class must be specified\n");
311 +      return -1;
312 +    }
313 +      
314 +    argc--;
315 +    argv++;
316 +      
317 +    opt.proxy=0;
318 +    
319 +    if(qdisc) {
320 +      opt.change_class=0;
321 +      if(wrr_parse_qdisc_weight(argc, argv, &opt.qdisc_modf)<0) return -1;
322 +    } else {
323 +      int a0,a1,a2,a3,a4=0,a5=0;      
324 +
325 +      opt.change_class=1;
326 +      
327 +      if(argc<1) {
328 +        fprintf(stderr,"... <mac>|<ip>|<masq> ...\n");
329 +        return -1;
330 +      }
331 +      memset(opt.addr,0,sizeof(opt.addr));
332 +
333 +      if((sscanf(argv[0],"%i.%i.%i.%i",&a0,&a1,&a2,&a3)!=4) &&
334 +         (sscanf(argv[0],"%x:%x:%x:%x:%x:%x",&a0,&a1,&a2,&a3,&a4,&a5)!=6)) {
335 +       fprintf(stderr,"Wrong format of mac or ip address\n");
336 +       return -1;
337 +      }
338 +      
339 +      opt.addr[0]=a0; opt.addr[1]=a1; opt.addr[2]=a2;
340 +      opt.addr[3]=a3; opt.addr[4]=a4; opt.addr[5]=a5;
341 +
342 +      if(wrr_parse_class_modf(argc-1, argv+1, &opt.class_modf)<0) return -1;
343 +    }  
344 +  
345 +    addattr_l(n, 1024, TCA_OPTIONS, &opt, sizeof(opt));
346 +  }
347 +  return 0;
348 +}
349 +
350 +static int wrr_parse_copt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n) {
351 +  struct tc_wrr_class_modf opt;
352 +  
353 +  memset(&opt,0,sizeof(opt));
354 +  if(wrr_parse_class_modf(argc,argv,&opt)<0) return -1;
355 +  
356 +  addattr_l(n, 1024, TCA_OPTIONS, &opt, sizeof(opt));
357 +  return 0;  
358 +}  
359 +
360 +static int wrr_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
361 +{
362 +       struct tc_wrr_qdisc_stats *qopt;
363 +
364 +       if (opt == NULL)
365 +               return 0;
366 +
367 +       if (RTA_PAYLOAD(opt)  < sizeof(*qopt))
368 +               return -1;
369 +       qopt = RTA_DATA(opt);
370 +       
371 +       fprintf(f,"\n  (%s/%s) (maxclasses %i) (usedclasses %i) (reused classes %i)\n",
372 +         qopt->qdisc_crt.srcaddr ? "sour" : "dest",
373 +         qopt->qdisc_crt.usemac  ? "mac"  : (qopt->qdisc_crt.usemasq ? "masq" : "ip"),   
374 +         qopt->qdisc_crt.bands_max,                      
375 +         qopt->bands_cur,
376 +         qopt->bands_reused
377 +         );
378 +         
379 +       if(qopt->qdisc_crt.proxy_maxconn) {
380 +         fprintf(f,"  (proxy maxcon %i) (proxy curcon %i)\n",
381 +           qopt->qdisc_crt.proxy_maxconn,qopt->proxy_curconn);
382 +       }
383 +       
384 +       fprintf(f,"  (waiting classes %i) (packets requeued %i) (priosum: %Lg)\n",
385 +         qopt->nodes_in_heap,
386 +         qopt->packets_requed,
387 +         qopt->priosum/((long double)((__u32)-1))
388 +         );
389 +
390 +       fprintf(f,"  (wmode1 %i) (wmode2 %i) \n",
391 +         qopt->qdisc_crt.qdisc_modf.weight1.weight_mode,
392 +         qopt->qdisc_crt.qdisc_modf.weight2.weight_mode);
393 +         
394 +       return 0;
395 +}
396 +
397 +static int wrr_print_copt(struct qdisc_util *qu, FILE *f, struct rtattr *opt) {
398 +  struct tc_wrr_class_stats *copt;
399 +  long double d=(__u64)-1;
400 +
401 +  if (opt == NULL) return 0;
402 +
403 +  if (RTA_PAYLOAD(opt)  < sizeof(*copt))
404 +    return -1;
405 +  copt = RTA_DATA(opt);
406 +
407 +  if(!copt->used) {
408 +    fprintf(f,"(unused)");
409 +    return 0;
410 +  }
411 +  
412 +  if(copt->usemac) {
413 +    fprintf(f,"\n  (address: %.2X:%.2X:%.2X:%.2X:%.2X:%.2X)\n",
414 +      copt->addr[0],copt->addr[1],copt->addr[2],
415 +      copt->addr[3],copt->addr[4],copt->addr[5]);
416 +  } else {     
417 +    fprintf(f,"\n  (address: %i.%i.%i.%i)\n",copt->addr[0],copt->addr[1],copt->addr[2],copt->addr[3]);
418 +  }    
419 +  
420 +  fprintf(f,"  (total weight: %Lg) (current position: %i) (counters: %u %u : %u %u)\n",
421 +    (copt->class_modf.weight1.val/d)*(copt->class_modf.weight2.val/d),
422 +    copt->heappos,
423 +    (unsigned)(copt->penal_ms>>32),
424 +    (unsigned)(copt->penal_ms & 0xffffffffU),
425 +    (unsigned)(copt->penal_ls>>32),
426 +    (unsigned)(copt->penal_ls & 0xffffffffU)
427 +    );
428 +    
429 +  fprintf(f,"  Pars 1: (weight %Lg) (decr: %Lg) (incr: %Lg) (min: %Lg) (max: %Lg)\n",
430 +    copt->class_modf.weight1.val/d,
431 +    copt->class_modf.weight1.decr/d,
432 +    copt->class_modf.weight1.incr/d,
433 +    copt->class_modf.weight1.min/d,
434 +    copt->class_modf.weight1.max/d);
435 +
436 +  fprintf(f,"  Pars 2: (weight %Lg) (decr: %Lg) (incr: %Lg) (min: %Lg) (max: %Lg)",
437 +    copt->class_modf.weight2.val/d,
438 +    copt->class_modf.weight2.decr/d,
439 +    copt->class_modf.weight2.incr/d,
440 +    copt->class_modf.weight2.min/d,
441 +    copt->class_modf.weight2.max/d);
442 +  
443 +  return 0;
444 +}
445 +
446 +static int wrr_print_xstats(struct qdisc_util *qu, FILE *f, struct rtattr *xstats)
447 +{
448 +       return 0;
449 +}
450 +
451 +
452 +struct qdisc_util wrr_qdisc_util = {
453 +       .id = "wrr",
454 +       .parse_qopt = wrr_parse_opt,
455 +       .print_qopt = wrr_print_opt,
456 +       .print_xstats = wrr_print_xstats,
457 +       .parse_copt = wrr_parse_copt,
458 +       .print_copt = wrr_print_copt
459 +};
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