~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/net/netfilter/xt_rateest.c

Version: ~ [ linux-5.4-rc3 ] ~ [ linux-5.3.6 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.79 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.149 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.196 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.196 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.75 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

Diff markup

Differences between /net/netfilter/xt_rateest.c (Version linux-4.10.17) and /net/netfilter/xt_rateest.c (Version linux-4.9.192)


** Warning: Cannot open xref database.

  1 /*                                                  1 
  2  * (C) 2007 Patrick McHardy <kaber@trash.net>     
  3  *                                                
  4  * This program is free software; you can redi    
  5  * it under the terms of the GNU General Publi    
  6  * published by the Free Software Foundation.     
  7  */                                               
  8 #include <linux/module.h>                         
  9 #include <linux/skbuff.h>                         
 10 #include <linux/gen_stats.h>                      
 11                                                   
 12 #include <linux/netfilter/x_tables.h>             
 13 #include <linux/netfilter/xt_rateest.h>           
 14 #include <net/netfilter/xt_rateest.h>             
 15                                                   
 16                                                   
 17 static bool                                       
 18 xt_rateest_mt(const struct sk_buff *skb, struc    
 19 {                                                 
 20         const struct xt_rateest_match_info *in    
 21         struct gnet_stats_rate_est64 sample =     
 22         u_int32_t bps1, bps2, pps1, pps2;         
 23         bool ret = true;                          
 24                                                   
 25         gen_estimator_read(&info->est1->rate_e    
 26                                                   
 27         if (info->flags & XT_RATEEST_MATCH_DEL    
 28                 bps1 = info->bps1 >= sample.bp    
 29                 pps1 = info->pps1 >= sample.pp    
 30         } else {                                  
 31                 bps1 = sample.bps;                
 32                 pps1 = sample.pps;                
 33         }                                         
 34                                                   
 35         if (info->flags & XT_RATEEST_MATCH_ABS    
 36                 bps2 = info->bps2;                
 37                 pps2 = info->pps2;                
 38         } else {                                  
 39                 gen_estimator_read(&info->est2    
 40                                                   
 41                 if (info->flags & XT_RATEEST_M    
 42                         bps2 = info->bps2 >= s    
 43                         pps2 = info->pps2 >= s    
 44                 } else {                          
 45                         bps2 = sample.bps;        
 46                         pps2 = sample.pps;        
 47                 }                                 
 48         }                                         
 49                                                   
 50         switch (info->mode) {                     
 51         case XT_RATEEST_MATCH_LT:                 
 52                 if (info->flags & XT_RATEEST_M    
 53                         ret &= bps1 < bps2;       
 54                 if (info->flags & XT_RATEEST_M    
 55                         ret &= pps1 < pps2;       
 56                 break;                            
 57         case XT_RATEEST_MATCH_GT:                 
 58                 if (info->flags & XT_RATEEST_M    
 59                         ret &= bps1 > bps2;       
 60                 if (info->flags & XT_RATEEST_M    
 61                         ret &= pps1 > pps2;       
 62                 break;                            
 63         case XT_RATEEST_MATCH_EQ:                 
 64                 if (info->flags & XT_RATEEST_M    
 65                         ret &= bps1 == bps2;      
 66                 if (info->flags & XT_RATEEST_M    
 67                         ret &= pps1 == pps2;      
 68                 break;                            
 69         }                                         
 70                                                   
 71         ret ^= info->flags & XT_RATEEST_MATCH_    
 72         return ret;                               
 73 }                                                 
 74                                                   
 75 static int xt_rateest_mt_checkentry(const stru    
 76 {                                                 
 77         struct xt_rateest_match_info *info = p    
 78         struct xt_rateest *est1, *est2;           
 79         int ret = -EINVAL;                        
 80                                                   
 81         if (hweight32(info->flags & (XT_RATEES    
 82                                      XT_RATEES    
 83                 goto err1;                        
 84                                                   
 85         if (!(info->flags & (XT_RATEEST_MATCH_    
 86                 goto err1;                        
 87                                                   
 88         switch (info->mode) {                     
 89         case XT_RATEEST_MATCH_EQ:                 
 90         case XT_RATEEST_MATCH_LT:                 
 91         case XT_RATEEST_MATCH_GT:                 
 92                 break;                            
 93         default:                                  
 94                 goto err1;                        
 95         }                                         
 96                                                   
 97         ret  = -ENOENT;                           
 98         est1 = xt_rateest_lookup(info->name1);    
 99         if (!est1)                                
100                 goto err1;                        
101                                                   
102         est2 = NULL;                              
103         if (info->flags & XT_RATEEST_MATCH_REL    
104                 est2 = xt_rateest_lookup(info-    
105                 if (!est2)                        
106                         goto err2;                
107         }                                         
108                                                   
109         info->est1 = est1;                        
110         info->est2 = est2;                        
111         return 0;                                 
112                                                   
113 err2:                                             
114         xt_rateest_put(est1);                     
115 err1:                                             
116         return ret;                               
117 }                                                 
118                                                   
119 static void xt_rateest_mt_destroy(const struct    
120 {                                                 
121         struct xt_rateest_match_info *info = p    
122                                                   
123         xt_rateest_put(info->est1);               
124         if (info->est2)                           
125                 xt_rateest_put(info->est2);       
126 }                                                 
127                                                   
128 static struct xt_match xt_rateest_mt_reg __rea    
129         .name       = "rateest",                  
130         .revision   = 0,                          
131         .family     = NFPROTO_UNSPEC,             
132         .match      = xt_rateest_mt,              
133         .checkentry = xt_rateest_mt_checkentry    
134         .destroy    = xt_rateest_mt_destroy,      
135         .matchsize  = sizeof(struct xt_rateest    
136         .me         = THIS_MODULE,                
137 };                                                
138                                                   
139 static int __init xt_rateest_mt_init(void)        
140 {                                                 
141         return xt_register_match(&xt_rateest_m    
142 }                                                 
143                                                   
144 static void __exit xt_rateest_mt_fini(void)       
145 {                                                 
146         xt_unregister_match(&xt_rateest_mt_reg    
147 }                                                 
148                                                   
149 MODULE_AUTHOR("Patrick McHardy <kaber@trash.ne    
150 MODULE_LICENSE("GPL");                            
151 MODULE_DESCRIPTION("xtables rate estimator mat    
152 MODULE_ALIAS("ipt_rateest");                      
153 MODULE_ALIAS("ip6t_rateest");                     
154 module_init(xt_rateest_mt_init);                  
155 module_exit(xt_rateest_mt_fini);                  
156                                                   

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp