Major rewrite of leading comments

[svn/Prometheus-QoS/.git] / parsehosts.c

/* Modified by: xChaos, 20121007 */\r
\r
#include "cll1-0.6.2.h"\r
#include "ipstruct.h"\r
\r
#define FIRSTGROUPID 1024\r
#define FIRSTIPCLASS 2048\r
\r
/* globals declared in prometheus.c */\r
extern struct IP *ips, *ip, *sharedip;\r
extern struct Group *groups, *group;\r
extern struct Keyword *keyword, *defaultkeyword, *keywords;\r
extern int class_count;\r
extern int ip_count;\r
extern int found_lmsid;\r
extern int free_min;\r
extern const int highest_priority;\r
\r
/* This must be object oriented! This looks almost like constructor ;-) */\r
void TheIP(void)\r
{\r
 create(ip,IP);\r
 ip->name        = "";\r
 ip->addr        = "";\r
 ip->sharing     = NULL;\r
 ip->prio        = highest_priority+1;\r
 ip->lmsid       = -1;\r
 ip->fixedprio   = \\r
 ip->mark        = \\r
 ip->min         = \\r
 ip->max         = \\r
 ip->desired     = \\r
 ip->credit      = \\r
 ip->upload      = \\r
 ip->proxy       = \\r
 ip->direct      = \\r
 ip->traffic     = \\r
 ip->pktsup      = \\r
 ip->pktsdown    = 0;\r
 ip->keyword     = keywords;\r
 push(ip,ips);\r
}\r
\r
/* == This function strips extra characters after IPv4 address and stores it = */\r
void parse_ip(char *str)\r
{\r
 char *ptr, *ipaddr = NULL, *ipname = NULL, *lmsid = NULL;\r
\r
 ptr = strchr(str, '{');\r
 if(ptr)\r
 {\r
  lmsid = ++ptr;\r
  while(*ptr and *ptr != '}')\r
  {\r
   ptr++;\r
  }\r
  *ptr = 0;\r
 }\r
 \r
 ptr = str;\r
 while(*ptr and *ptr!=' ' and *ptr!=9)\r
 {\r
  ptr++;\r
 }\r
 \r
 *ptr = 0;\r
 ipaddr = str;\r
 ptr++;\r
 while(*ptr and (*ptr==' ' or *ptr==9))\r
 {\r
  ptr++;\r
 }\r
 ipname=ptr; \r
 while(*ptr and *ptr!=' ' and *ptr!=9)\r
 {\r
  ptr++;\r
 }\r
 *ptr=0;\r
\r
 if_exists(ip, ips, eq(ip->addr,ipaddr));\r
 else\r
 {\r
  TheIP();\r
 }\r
 ip->addr = ipaddr;\r
 ip->name = ipname;\r
 if(lmsid)\r
 {\r
  ip->lmsid = atoi(lmsid);\r
  found_lmsid = TRUE;\r
 }\r
}\r
\r
/* == This function parses hosts style main configuration file == */\r
void parse_hosts(char *hosts)\r
{\r
 int groupidx = FIRSTGROUPID;\r
 char *str, *ptr;\r
 char *substring;\r
\r
 parse(hosts)\r
 {\r
  str=_;\r
\r
  if(*str < '0' or *str > '9')\r
  {\r
   /* any line starting with non-number is comment ...*/\r
   continue;\r
  }\r
  \r
  /* Does this IP share QoS class with some other ? */\r
  substring = strstr(str, "sharing-");\r
  if(substring)\r
  { \r
   substring += 8; /* "sharing-" */\r
   parse_ip(str);\r
   ip_count++;\r
   ip->sharing = substring;\r
   ip->keyword = defaultkeyword; /* settings for default keyword */\r
   while(*substring and *substring != '\n')\r
   {\r
    substring++;\r
   }\r
   *substring = 0; \r
  }\r
  else\r
  {\r
   /*Do we have to create new QoS class for this IP ? */\r
\r
   if_exists(keyword,keywords,(substring=strstr(str,keyword->key)))\r
   {\r
    parse_ip(str);\r
    ip_count++;\r
    ip->keyword = keyword;\r
    keyword->ip_count++;\r
    ip->prio = keyword->default_prio;\r
    substring += strlen(keyword->key)+1;\r
    ptr = substring;\r
    while(*ptr and *ptr != '-')\r
    {\r
     ptr++;\r
    }\r
    if(*ptr == '-')\r
    {\r
     *ptr=0;\r
     ip->max = ip->desired = atoi(ptr+1);\r
    }\r
    ip->min = atoi(substring);\r
    if(ip->min <= 0)\r
    {\r
     printf(" %s: Illegal value of minimum bandwidth 0 kbps, using %d kb/s\n",\r
            str, free_min);\r
     ip->min = free_min;\r
    }\r
    if(ip->max <= ip->min)\r
    {\r
     ip->fixedprio = TRUE;\r
     ip->max = ip->min + ip->keyword->reserve_min;\r
    }\r
    else \r
    {\r
     ip->max -= ip->keyword->reserve_max;\r
     if(ip->max<ip->min)\r
     {\r
      ip->max=ip->min;\r
     }\r
    }\r
    ip->mark = FIRSTIPCLASS+1+class_count++;\r
\r
    if_exists(group,groups,(group->min == ip->min)) \r
    { \r
     group->count++;      \r
     group->desired += ip->min;\r
     ip->group = group->id;   \r
    }\r
    else\r
    {\r
     create(group,Group);\r
     group->min = ip->min;\r
     group->id = groupidx++;\r
     ip->group = group->id;\r
\r
     if(group->min < 8) group->min = 8;\r
     /* Warning - this is maybe because of primitive tc namespace, can be fixed */\r
     /* it is because class IDs are derived from min. bandwidth. - xCh */\r
     //if(group->min>MAX_GUARANTED_KBPS) group->min=MAX_GUARANTED_KBPS;\r
     \r
     group->count = 1;\r
     group->desired = ip->min;   \r
     insert(group, groups, desc_order_by,min);\r
    }\r
   }//endif keyword-\r
  }//endif sharing-\r
 }\r
 fail\r
 {\r
  perror(hosts);\r
  exit(-1);\r
 }\r
 done; /* ugly macro end */\r
}