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[packages/iproute2.git] / iproute2-2.2.4-wrr.patch
1 --- iproute2-5.10.0/tc/Makefile.orig    2021-02-24 19:25:55.137480328 +0100
2 +++ iproute2-5.10.0/tc/Makefile 2021-02-24 19:26:32.562746684 +0100
3 @@ -20,6 +20,7 @@
4  TCMODULES += q_netem.o
5  TCMODULES += q_choke.o
6  TCMODULES += q_sfb.o
7 +TCMODULES += q_wrr.o
8  TCMODULES += f_u32.o
9  TCMODULES += f_route.o
10  TCMODULES += f_fw.o
11 --- iproute2-5.10.0/include/uapi/linux/pkt_sched.h.orig 2021-02-24 19:26:51.060368757 +0100
12 +++ iproute2-5.10.0/include/uapi/linux/pkt_sched.h      2021-02-24 19:28:08.234354809 +0100
13 @@ -676,6 +676,119 @@
14  #define NETEM_DIST_SCALE       8192
15  #define NETEM_DIST_MAX         16384
16  
17 +/* WRR section */
18 +
19 +/* Other includes */
20 +#include <linux/if_ether.h>
21 +#include <sys/time.h>
22 +
23 +// A sub weight and of a class
24 +// All numbers are represented as parts of (2^64-1).
25 +struct tc_wrr_class_weight {
26 +       __u64 val;      // Current value                        (0 is not valid)
27 +       __u64 decr;     // Value pr bytes                       (2^64-1 is not valid)
28 +       __u64 incr;     // Value pr seconds                     (2^64-1 is not valid)
29 +       __u64 min;      // Minimal value                        (0 is not valid)
30 +       __u64 max;      // Minimal value                        (0 is not valid)
31 +
32 +// The time where the above information was correct:
33 +       time_t tim;
34 +};
35 +
36 +// Packet send when modifying a class:
37 +struct tc_wrr_class_modf {
38 +       // Not-valid values are ignored.
39 +       struct tc_wrr_class_weight weight1;
40 +       struct tc_wrr_class_weight weight2;
41 +};
42 +
43 +// Packet returned when quering a class:
44 +struct tc_wrr_class_stats {
45 +       char used;      // If this is false the information below is invalid
46 +
47 +       struct tc_wrr_class_modf class_modf;
48 +
49 +       unsigned char addr[ETH_ALEN];
50 +       char usemac;    // True if addr is a MAC address, else it is an IP address
51 +                       // (this value is only for convience, it is always the same
52 +                       //  value as in the qdisc)
53 +       int heappos;    // Current heap position or 0 if not in heap
54 +       __u64 penal_ls; // Penalty value in heap (ls)
55 +       __u64 penal_ms; // Penalty value in heap (ms)
56 +};
57 +
58 +// Qdisc-wide penalty information (boolean values - 2 not valid)
59 +struct tc_wrr_qdisc_weight {
60 +       char weight_mode;       // 0=No automatic change to weight
61 +                               // 1=Decrease normally
62 +                               // 2=Also multiply with number of machines
63 +                               // 3=Instead multiply with priority divided
64 +                               //   with priority of the other.
65 +                               // -1=no change
66 +};
67 +
68 +// Packet send when modifing a qdisc:
69 +struct tc_wrr_qdisc_modf {
70 +       // Not-valid values are ignored:
71 +       struct tc_wrr_qdisc_weight weight1;
72 +       struct tc_wrr_qdisc_weight weight2;
73 +};
74 +
75 +// Packet send when creating a qdisc:
76 +struct tc_wrr_qdisc_crt {
77 +       struct tc_wrr_qdisc_modf qdisc_modf;
78 +
79 +       char srcaddr;   // 1=lookup source, 0=lookup destination
80 +       char usemac;    // 1=Classify on MAC addresses, 0=classify on IP
81 +       char usemasq;   // 1=Classify based on masqgrading - only valid
82 +                       //   if usemac is zero
83 +       int bands_max;  // Maximal number of bands (i.e.: classes)
84 +       int proxy_maxconn;// If differnt from 0 then we support proxy remapping
85 +                       // of packets. And this is the number of maximal
86 +                       // concurrent proxy connections.
87 +};
88 +
89 +// Packet returned when quering a qdisc:
90 +struct tc_wrr_qdisc_stats {
91 +       struct tc_wrr_qdisc_crt qdisc_crt;
92 +       int proxy_curconn;
93 +       int nodes_in_heap;      // Current number of bands wanting to send something
94 +       int bands_cur;          // Current number of bands used (i.e.: MAC/IP addresses seen)
95 +       int bands_reused;       // Number of times this band has been reused.
96 +       int packets_requed;     // Number of times packets have been requeued.
97 +       __u64 priosum;          // Sum of priorities in heap where 1 is 2^32
98 +};
99 +
100 +struct tc_wrr_qdisc_modf_std {
101 +       // This indicates which of the tc_wrr_qdisc_modf structers this is:
102 +       char proxy; // 0=This struct
103 +
104 +       // Should we also change a class?
105 +       char change_class;
106 +
107 +       // Only valid if change_class is false
108 +       struct tc_wrr_qdisc_modf qdisc_modf;
109 +
110 +       // Only valid if change_class is true:
111 +       unsigned char addr[ETH_ALEN]; // Class to change (non-used bytes should be 0)
112 +       struct tc_wrr_class_modf class_modf; // The change
113 +};
114 +
115 +// Used for proxyrempping:
116 +struct tc_wrr_qdisc_modf_proxy {
117 +       // This indicates which of the tc_wrr_qdisc_modf structers this is:
118 +       char proxy;     // 1=This struct
119 +
120 +       // This is 1 if the proxyremap information should be reset
121 +       char reset;
122 +
123 +       // changec is the number of elements in changes.
124 +       int changec;
125 +
126 +       // This is an array of type ProxyRemapBlock:
127 +       long changes[0];
128 +};
129 +
130  /* DRR */
131  
132  enum {
133 diff -urN iproute-2.6.20-070313-orig/tc/q_wrr.c iproute-2.6.20-070313/tc/q_wrr.c
134 --- iproute-2.6.20-070313-orig/tc/q_wrr.c       1970-01-01 01:00:00.000000000 +0100
135 +++ iproute-2.6.20-070313/tc/q_wrr.c    2007-04-15 20:52:33.000000000 +0200
136 @@ -0,0 +1,322 @@
137 +#include <stdio.h>
138 +#include <stdlib.h>
139 +#include <unistd.h>
140 +#include <syslog.h>
141 +#include <fcntl.h>
142 +#include <sys/socket.h>
143 +#include <netinet/in.h>
144 +#include <arpa/inet.h>
145 +#include <string.h>
146 +#include <math.h>
147 +
148 +#include "utils.h"
149 +#include "tc_util.h"
150 +
151 +#define usage() return(-1)
152 +
153 +// Returns -1 on error
154 +static int wrr_parse_qdisc_weight(int argc, char** argv, 
155 +                              struct tc_wrr_qdisc_modf* opt) {
156 +  int i;
157 +  
158 +  opt->weight1.weight_mode=-1;
159 +  opt->weight2.weight_mode=-1;
160 +  
161 +  for(i=0; i<argc; i++) {  
162 +    if(!memcmp(argv[i],"wmode1=",7)) {
163 +      opt->weight1.weight_mode=atoi(argv[i]+7);            
164 +    } else if(!memcmp(argv[i],"wmode2=",7)) {
165 +      opt->weight2.weight_mode=atoi(argv[i]+7);
166 +    } else {
167 +      printf("Usage: ... [wmode1=0|1|2|3] [wmode2=0|1|2|3]\n");
168 +      return -1;
169 +    }
170 +  }
171 +  return 0;
172 +}
173 +
174 +static int wrr_parse_class_modf(int argc, char** argv, 
175 +                                struct tc_wrr_class_modf* modf) {
176 +  int i;
177 +  
178 +  if(argc<1) {
179 +    fprintf(stderr, "Usage: ... [weight1=val] [decr1=val] [incr1=val] [min1=val] [max1=val] [val2=val] ...\n");
180 +    fprintf(stderr, "  The values can be floating point like 0.42 or divisions like 42/100\n");
181 +    return -1;
182 +  }
183 +  
184 +  // Set meaningless values:
185 +  modf->weight1.val=0;
186 +  modf->weight1.decr=(__u64)-1;
187 +  modf->weight1.incr=(__u64)-1;
188 +  modf->weight1.min=0;
189 +  modf->weight1.max=0;
190 +  modf->weight2.val=0;
191 +  modf->weight2.decr=(__u64)-1;
192 +  modf->weight2.incr=(__u64)-1;
193 +  modf->weight2.min=0;
194 +  modf->weight2.max=0;
195 +  
196 +  // And read values:
197 +  for(i=0; i<argc; i++) {
198 +    char arg[80];
199 +    char* name,*value1=0,*value2=0;
200 +    long double f_val1,f_val2=1,value;
201 +    if(strlen(argv[i])>=sizeof(arg)) {
202 +      fprintf(stderr,"Argument too long: %s\n",argv[i]);
203 +      return -1;
204 +    }
205 +    strcpy(arg,argv[i]);
206 +    
207 +    name=strtok(arg,"=");
208 +    if(name) value1=strtok(0,"/");
209 +    if(value1) value2=strtok(0,"");
210 +    
211 +    if(!value1) {
212 +      fprintf(stderr,"No = found in argument: %s\n",argv[i]);
213 +      return -1;
214 +    }
215 +    
216 +    f_val1=atof(value1);
217 +    if(value2) f_val2=atof(value2);    
218 +    
219 +    if(f_val2==0)  {
220 +      fprintf(stderr,"Division by 0\n");
221 +      return -1;
222 +    }
223 +        
224 +    value=f_val1/f_val2;    
225 +    if(value>1) value=1;
226 +    if(value<0) value=0;            
227 +    value*=((__u64)-1);
228 +    
229 +    // And find the value set
230 +    if(!strcmp(name,"weight1"))    modf->weight1.val=value;
231 +    else if(!strcmp(name,"decr1")) modf->weight1.decr=value;
232 +    else if(!strcmp(name,"incr1")) modf->weight1.incr=value;
233 +    else if(!strcmp(name,"min1"))  modf->weight1.min=value;
234 +    else if(!strcmp(name,"max1"))  modf->weight1.max=value;
235 +    else if(!strcmp(name,"weight2")) modf->weight2.val=value;
236 +    else if(!strcmp(name,"decr2")) modf->weight2.decr=value;
237 +    else if(!strcmp(name,"incr2")) modf->weight2.incr=value;
238 +    else if(!strcmp(name,"min2"))  modf->weight2.min=value;
239 +    else if(!strcmp(name,"max2"))  modf->weight2.max=value;
240 +    else {
241 +      fprintf(stderr,"illegal value: %s\n",name);
242 +      return -1;
243 +    }
244 +  }    
245 +
246 +  return 0;
247 +}
248 +
249 +static int wrr_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n)
250 +{
251 +  if(n->nlmsg_flags & NLM_F_CREATE) {
252 +    // This is a create request:
253 +    struct tc_wrr_qdisc_crt opt;
254 +       
255 +    int sour,dest,ip,mac,masq;
256 +
257 +    if(argc<4) {
258 +      fprintf(stderr, "Usage: ... wrr sour|dest ip|masq|mac maxclasses proxymaxcon [penalty-setup]\n");
259 +      return -1;
260 +    }    
261 +  
262 +    // Read sour/dest:
263 +    memset(&opt,0,sizeof(opt));
264 +    sour=!strcmp(argv[0],"sour");
265 +    dest=!strcmp(argv[0],"dest");      
266 +       
267 +    if(!sour && !dest) {
268 +      fprintf(stderr,"sour or dest must be specified\n");
269 +      return -1;
270 +    }  
271 +
272 +    // Read ip/mac
273 +    ip=!strcmp(argv[1],"ip");
274 +    mac=!strcmp(argv[1],"mac");        
275 +    masq=!strcmp(argv[1],"masq");      
276 +
277 +    if(!ip && !mac && !masq) {
278 +      fprintf(stderr,"ip, masq or mac must be specified\n");
279 +      return -1;
280 +    }  
281 +
282 +    opt.srcaddr=sour;          
283 +    opt.usemac=mac;
284 +    opt.usemasq=masq;          
285 +    opt.bands_max=atoi(argv[2]);
286 +    
287 +    opt.proxy_maxconn=atoi(argv[3]);
288 +    
289 +    // Read weights:
290 +    if(wrr_parse_qdisc_weight(argc-4,argv+4,&opt.qdisc_modf)<0) return -1;
291 +    if(opt.qdisc_modf.weight1.weight_mode==-1) opt.qdisc_modf.weight1.weight_mode=0;
292 +    if(opt.qdisc_modf.weight2.weight_mode==-1) opt.qdisc_modf.weight2.weight_mode=0;
293 +               
294 +    addattr_l(n, 1024, TCA_OPTIONS, &opt, sizeof(opt));
295 +  } else {
296 +    struct tc_wrr_qdisc_modf_std opt;
297 +    char qdisc,class;
298 +    
299 +    // This is a modify request:
300 +    if(argc<1) {
301 +      fprintf(stderr,"... qdisc ... or ... class ...\n");
302 +      return -1;
303 +    }
304 +            
305 +    qdisc=!strcmp(argv[0],"qdisc");
306 +    class=!strcmp(argv[0],"class");
307 +
308 +    if(!qdisc && !class) {
309 +      fprintf(stderr,"qdisc or class must be specified\n");
310 +      return -1;
311 +    }
312 +      
313 +    argc--;
314 +    argv++;
315 +      
316 +    opt.proxy=0;
317 +    
318 +    if(qdisc) {
319 +      opt.change_class=0;
320 +      if(wrr_parse_qdisc_weight(argc, argv, &opt.qdisc_modf)<0) return -1;
321 +    } else {
322 +      int a0,a1,a2,a3,a4=0,a5=0;      
323 +
324 +      opt.change_class=1;
325 +      
326 +      if(argc<1) {
327 +        fprintf(stderr,"... <mac>|<ip>|<masq> ...\n");
328 +        return -1;
329 +      }
330 +      memset(opt.addr,0,sizeof(opt.addr));
331 +
332 +      if((sscanf(argv[0],"%i.%i.%i.%i",&a0,&a1,&a2,&a3)!=4) &&
333 +         (sscanf(argv[0],"%x:%x:%x:%x:%x:%x",&a0,&a1,&a2,&a3,&a4,&a5)!=6)) {
334 +       fprintf(stderr,"Wrong format of mac or ip address\n");
335 +       return -1;
336 +      }
337 +      
338 +      opt.addr[0]=a0; opt.addr[1]=a1; opt.addr[2]=a2;
339 +      opt.addr[3]=a3; opt.addr[4]=a4; opt.addr[5]=a5;
340 +
341 +      if(wrr_parse_class_modf(argc-1, argv+1, &opt.class_modf)<0) return -1;
342 +    }  
343 +  
344 +    addattr_l(n, 1024, TCA_OPTIONS, &opt, sizeof(opt));
345 +  }
346 +  return 0;
347 +}
348 +
349 +static int wrr_parse_copt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n) {
350 +  struct tc_wrr_class_modf opt;
351 +  
352 +  memset(&opt,0,sizeof(opt));
353 +  if(wrr_parse_class_modf(argc,argv,&opt)<0) return -1;
354 +  
355 +  addattr_l(n, 1024, TCA_OPTIONS, &opt, sizeof(opt));
356 +  return 0;  
357 +}  
358 +
359 +static int wrr_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
360 +{
361 +       struct tc_wrr_qdisc_stats *qopt;
362 +
363 +       if (opt == NULL)
364 +               return 0;
365 +
366 +       if (RTA_PAYLOAD(opt)  < sizeof(*qopt))
367 +               return -1;
368 +       qopt = RTA_DATA(opt);
369 +       
370 +       fprintf(f,"\n  (%s/%s) (maxclasses %i) (usedclasses %i) (reused classes %i)\n",
371 +         qopt->qdisc_crt.srcaddr ? "sour" : "dest",
372 +         qopt->qdisc_crt.usemac  ? "mac"  : (qopt->qdisc_crt.usemasq ? "masq" : "ip"),   
373 +         qopt->qdisc_crt.bands_max,                      
374 +         qopt->bands_cur,
375 +         qopt->bands_reused
376 +         );
377 +         
378 +       if(qopt->qdisc_crt.proxy_maxconn) {
379 +         fprintf(f,"  (proxy maxcon %i) (proxy curcon %i)\n",
380 +           qopt->qdisc_crt.proxy_maxconn,qopt->proxy_curconn);
381 +       }
382 +       
383 +       fprintf(f,"  (waiting classes %i) (packets requeued %i) (priosum: %Lg)\n",
384 +         qopt->nodes_in_heap,
385 +         qopt->packets_requed,
386 +         qopt->priosum/((long double)((__u32)-1))
387 +         );
388 +
389 +       fprintf(f,"  (wmode1 %i) (wmode2 %i) \n",
390 +         qopt->qdisc_crt.qdisc_modf.weight1.weight_mode,
391 +         qopt->qdisc_crt.qdisc_modf.weight2.weight_mode);
392 +         
393 +       return 0;
394 +}
395 +
396 +static int wrr_print_copt(struct qdisc_util *qu, FILE *f, struct rtattr *opt) {
397 +  struct tc_wrr_class_stats *copt;
398 +  long double d=(__u64)-1;
399 +
400 +  if (opt == NULL) return 0;
401 +
402 +  if (RTA_PAYLOAD(opt)  < sizeof(*copt))
403 +    return -1;
404 +  copt = RTA_DATA(opt);
405 +
406 +  if(!copt->used) {
407 +    fprintf(f,"(unused)");
408 +    return 0;
409 +  }
410 +  
411 +  if(copt->usemac) {
412 +    fprintf(f,"\n  (address: %.2X:%.2X:%.2X:%.2X:%.2X:%.2X)\n",
413 +      copt->addr[0],copt->addr[1],copt->addr[2],
414 +      copt->addr[3],copt->addr[4],copt->addr[5]);
415 +  } else {     
416 +    fprintf(f,"\n  (address: %i.%i.%i.%i)\n",copt->addr[0],copt->addr[1],copt->addr[2],copt->addr[3]);
417 +  }    
418 +  
419 +  fprintf(f,"  (total weight: %Lg) (current position: %i) (counters: %u %u : %u %u)\n",
420 +    (copt->class_modf.weight1.val/d)*(copt->class_modf.weight2.val/d),
421 +    copt->heappos,
422 +    (unsigned)(copt->penal_ms>>32),
423 +    (unsigned)(copt->penal_ms & 0xffffffffU),
424 +    (unsigned)(copt->penal_ls>>32),
425 +    (unsigned)(copt->penal_ls & 0xffffffffU)
426 +    );
427 +    
428 +  fprintf(f,"  Pars 1: (weight %Lg) (decr: %Lg) (incr: %Lg) (min: %Lg) (max: %Lg)\n",
429 +    copt->class_modf.weight1.val/d,
430 +    copt->class_modf.weight1.decr/d,
431 +    copt->class_modf.weight1.incr/d,
432 +    copt->class_modf.weight1.min/d,
433 +    copt->class_modf.weight1.max/d);
434 +
435 +  fprintf(f,"  Pars 2: (weight %Lg) (decr: %Lg) (incr: %Lg) (min: %Lg) (max: %Lg)",
436 +    copt->class_modf.weight2.val/d,
437 +    copt->class_modf.weight2.decr/d,
438 +    copt->class_modf.weight2.incr/d,
439 +    copt->class_modf.weight2.min/d,
440 +    copt->class_modf.weight2.max/d);
441 +  
442 +  return 0;
443 +}
444 +
445 +static int wrr_print_xstats(struct qdisc_util *qu, FILE *f, struct rtattr *xstats)
446 +{
447 +       return 0;
448 +}
449 +
450 +
451 +struct qdisc_util wrr_qdisc_util = {
452 +       .id = "wrr",
453 +       .parse_qopt = wrr_parse_opt,
454 +       .print_qopt = wrr_print_opt,
455 +       .print_xstats = wrr_print_xstats,
456 +       .parse_copt = wrr_parse_copt,
457 +       .print_copt = wrr_print_copt
458 +};
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