rmnet_wlan_fragment.c 16 KB

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  1. // SPDX-License-Identifier: GPL-2.0-only
  2. /* Copyright (c) 2021, The Linux Foundation. All rights reserved.
  3. * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
  4. *
  5. * RMNET WLAN fragment handler framework
  6. *
  7. */
  8. #include <linux/types.h>
  9. #include <linux/skbuff.h>
  10. #include <net/ip.h>
  11. #include <net/ipv6.h>
  12. #include <linux/rcupdate.h>
  13. #include <linux/list.h>
  14. #include <linux/rculist.h>
  15. #include <linux/hashtable.h>
  16. #include <linux/workqueue.h>
  17. #include <linux/version.h>
  18. #include "rmnet_wlan.h"
  19. #include "rmnet_wlan_stats.h"
  20. #include "rmnet_wlan_fragment.h"
  21. #define DATARMNET598d70a086 ((0xeb7+1158-0x132d))
  22. #define DATARMNETeaee3af609 (const_ilog2(DATARMNET598d70a086))
  23. #define DATARMNET63a285d479 ((0xeb7+698-0x110d))
  24. #define DATARMNETdbb408ba5d ((0xef7+1112-0x131d))
  25. struct DATARMNETdadb4e2c65{union{__be32 DATARMNETdfe430c2d6;struct in6_addr
  26. DATARMNET815cbb4bf5;};union{__be32 DATARMNET2cb607d686;struct in6_addr
  27. DATARMNETc3f31215b7;};__be32 id;u16 DATARMNET611d08d671;u16 DATARMNETb65c469a15;
  28. u8 DATARMNET0d956cc77a;};struct DATARMNET6f3b954709{struct hlist_node
  29. DATARMNETe8608dd267;spinlock_t DATARMNET94b1f9ee09;struct list_head
  30. DATARMNET0f34bf3ea9;struct rcu_head DATARMNET28bfe9e6ad;struct
  31. DATARMNETdadb4e2c65 DATARMNET54338da2ff;struct DATARMNET8d3c2559ca*
  32. DATARMNET7ed5754a5c;unsigned long DATARMNET763f2e5fac;bool DATARMNET1717afebc7;}
  33. ;struct DATARMNET2f26f1d597{struct delayed_work DATARMNET190b4452e8;bool
  34. DATARMNETcd94e0d3c7;};static DEFINE_SPINLOCK(DATARMNET531b038fcd);static
  35. DEFINE_HASHTABLE(DATARMNET6e79f38051,DATARMNETeaee3af609);static u64
  36. DATARMNETdef6cfba1c;static struct DATARMNET2f26f1d597 DATARMNETa41953a37b;static
  37. int DATARMNET24669a931d(const struct sk_buff*DATARMNET543491eb0f,unsigned int*
  38. DATARMNETb65c469a15,int DATARMNETbfd7eb99fe,unsigned short*DATARMNET0823b5e89c,
  39. int*DATARMNETfb0677cc3c){unsigned int DATARMNETab6f68a65c=skb_network_offset(
  40. DATARMNET543491eb0f)+sizeof(struct ipv6hdr);u8 nexthdr=ipv6_hdr(
  41. DATARMNET543491eb0f)->nexthdr;bool DATARMNET1034358542;if(DATARMNET0823b5e89c)*
  42. DATARMNET0823b5e89c=(0xd2d+202-0xdf7);if(*DATARMNETb65c469a15){struct ipv6hdr
  43. DATARMNET982faca395,*DATARMNETc46d75f0b8;DATARMNETc46d75f0b8=skb_header_pointer(
  44. DATARMNET543491eb0f,*DATARMNETb65c469a15,sizeof(DATARMNET982faca395),&
  45. DATARMNET982faca395);if(!DATARMNETc46d75f0b8||(DATARMNETc46d75f0b8->version!=
  46. (0xd03+244-0xdf1)))return-EBADMSG;DATARMNETab6f68a65c=*DATARMNETb65c469a15+
  47. sizeof(struct ipv6hdr);nexthdr=DATARMNETc46d75f0b8->nexthdr;}do{struct
  48. ipv6_opt_hdr DATARMNETb18a0d17a5,*DATARMNET7c56b76ea0;unsigned int
  49. DATARMNET4593c3f2c2;DATARMNET1034358542=(nexthdr==DATARMNETbfd7eb99fe);if((!
  50. ipv6_ext_hdr(nexthdr))||nexthdr==NEXTHDR_NONE){if(DATARMNETbfd7eb99fe<
  51. (0xd2d+202-0xdf7)||DATARMNET1034358542)break;return-ENOENT;}DATARMNET7c56b76ea0=
  52. skb_header_pointer(DATARMNET543491eb0f,DATARMNETab6f68a65c,sizeof(
  53. DATARMNETb18a0d17a5),&DATARMNETb18a0d17a5);if(!DATARMNET7c56b76ea0)return-
  54. EBADMSG;if(nexthdr==NEXTHDR_ROUTING){struct ipv6_rt_hdr DATARMNET942c8f7153,*
  55. DATARMNETb2650cb3cb;DATARMNETb2650cb3cb=skb_header_pointer(DATARMNET543491eb0f,
  56. DATARMNETab6f68a65c,sizeof(DATARMNET942c8f7153),&DATARMNET942c8f7153);if(!
  57. DATARMNETb2650cb3cb)return-EBADMSG;if(DATARMNETfb0677cc3c&&(*DATARMNETfb0677cc3c
  58. &IP6_FH_F_SKIP_RH)&&DATARMNETb2650cb3cb->segments_left==(0xd2d+202-0xdf7))
  59. DATARMNET1034358542=false;}if(nexthdr==NEXTHDR_FRAGMENT){unsigned short
  60. DATARMNET3ed4d6b164;__be16*DATARMNET748d4c9015;if(DATARMNETfb0677cc3c)*
  61. DATARMNETfb0677cc3c|=IP6_FH_F_FRAG;DATARMNET748d4c9015=skb_header_pointer(
  62. DATARMNET543491eb0f,DATARMNETab6f68a65c+offsetof(struct frag_hdr,frag_off),
  63. sizeof(DATARMNET3ed4d6b164),&DATARMNET3ed4d6b164);if(!DATARMNET748d4c9015)return
  64. -EBADMSG;DATARMNET3ed4d6b164=ntohs(*DATARMNET748d4c9015)&~(0xcfc+267-0xe00);if(
  65. DATARMNET3ed4d6b164){if(DATARMNETbfd7eb99fe<(0xd2d+202-0xdf7)&&((!ipv6_ext_hdr(
  66. DATARMNET7c56b76ea0->nexthdr))||DATARMNET7c56b76ea0->nexthdr==NEXTHDR_NONE)){if(
  67. DATARMNET0823b5e89c)*DATARMNET0823b5e89c=DATARMNET3ed4d6b164;return
  68. DATARMNET7c56b76ea0->nexthdr;}if(!DATARMNET1034358542)return-ENOENT;if(
  69. DATARMNET0823b5e89c)*DATARMNET0823b5e89c=DATARMNET3ed4d6b164;break;}
  70. DATARMNET4593c3f2c2=(0xd35+210-0xdff);}else if(nexthdr==NEXTHDR_AUTH){if(
  71. DATARMNETfb0677cc3c&&(*DATARMNETfb0677cc3c&IP6_FH_F_AUTH)&&(DATARMNETbfd7eb99fe<
  72. (0xd2d+202-0xdf7)))break;DATARMNET4593c3f2c2=ipv6_authlen(DATARMNET7c56b76ea0);}
  73. else DATARMNET4593c3f2c2=ipv6_optlen(DATARMNET7c56b76ea0);if(!
  74. DATARMNET1034358542){nexthdr=DATARMNET7c56b76ea0->nexthdr;DATARMNETab6f68a65c+=
  75. DATARMNET4593c3f2c2;}}while(!DATARMNET1034358542);*DATARMNETb65c469a15=
  76. DATARMNETab6f68a65c;return nexthdr;}static bool DATARMNET1bb071d045(struct
  77. DATARMNET6f3b954709*DATARMNET63b1a086d5,unsigned long DATARMNET763f2e5fac){
  78. unsigned long DATARMNETc2d5c71ce1;DATARMNETc2d5c71ce1=msecs_to_jiffies(
  79. DATARMNET63a285d479);if(DATARMNET763f2e5fac-DATARMNET63b1a086d5->
  80. DATARMNET763f2e5fac>DATARMNETc2d5c71ce1)return true;return false;}static void
  81. DATARMNETc7c83f614f(struct DATARMNET6f3b954709*DATARMNET63b1a086d5,bool
  82. DATARMNET7a9bcaf1a3){struct DATARMNET8d3c2559ca*DATARMNET54338da2ff;int(*
  83. DATARMNET456ac0e8eb)(struct sk_buff*DATARMNET543491eb0f);struct sk_buff*
  84. DATARMNET543491eb0f,*DATARMNET0386f6f82a;unsigned long DATARMNETfb0677cc3c;
  85. #if (KERNEL_VERSION((0xd03+244-0xdf1), (0xd2d+202-0xdf7), (0xd2d+202-0xdf7)) < \
  86. LINUX_VERSION_CODE)
  87. DATARMNET456ac0e8eb=(DATARMNET7a9bcaf1a3)?netif_receive_skb:__netif_rx;
  88. #else
  89. DATARMNET456ac0e8eb=(DATARMNET7a9bcaf1a3)?netif_receive_skb:netif_rx;
  90. #endif
  91. DATARMNET54338da2ff=DATARMNET63b1a086d5->DATARMNET7ed5754a5c;spin_lock_irqsave(&
  92. DATARMNET63b1a086d5->DATARMNET94b1f9ee09,DATARMNETfb0677cc3c);
  93. list_for_each_entry_safe(DATARMNET543491eb0f,DATARMNET0386f6f82a,&
  94. DATARMNET63b1a086d5->DATARMNET0f34bf3ea9,list){u32 DATARMNET248f120dd5;list_del(
  95. &DATARMNET543491eb0f->list);DATARMNET543491eb0f->next=NULL;DATARMNET543491eb0f->
  96. prev=NULL;if(IS_ERR_OR_NULL(DATARMNET54338da2ff)){DATARMNET456ac0e8eb(
  97. DATARMNET543491eb0f);continue;}if(DATARMNET4899053671(DATARMNET543491eb0f,
  98. DATARMNET54338da2ff)){DATARMNET248f120dd5=DATARMNETba232077da;
  99. DATARMNET456ac0e8eb(DATARMNET543491eb0f);}else{DATARMNET248f120dd5=
  100. DATARMNET7a58a5c1fc;}DATARMNET5ca94dbc3c(DATARMNET248f120dd5);}
  101. spin_unlock_irqrestore(&DATARMNET63b1a086d5->DATARMNET94b1f9ee09,
  102. DATARMNETfb0677cc3c);}static bool DATARMNETb636687df3(bool DATARMNETe78ad140cc){
  103. struct DATARMNET6f3b954709*DATARMNET63b1a086d5;struct hlist_node*
  104. DATARMNET0386f6f82a;unsigned long DATARMNET763f2e5fac;int DATARMNET5c2fd31d7b;
  105. DATARMNET763f2e5fac=jiffies;hash_for_each_safe(DATARMNET6e79f38051,
  106. DATARMNET5c2fd31d7b,DATARMNET0386f6f82a,DATARMNET63b1a086d5,DATARMNETe8608dd267)
  107. {if(DATARMNET63b1a086d5->DATARMNET1717afebc7)continue;if(DATARMNETe78ad140cc||
  108. DATARMNET1bb071d045(DATARMNET63b1a086d5,DATARMNET763f2e5fac)){
  109. DATARMNET63b1a086d5->DATARMNET1717afebc7=true;hash_del_rcu(&DATARMNET63b1a086d5
  110. ->DATARMNETe8608dd267);DATARMNETc7c83f614f(DATARMNET63b1a086d5,false);kfree_rcu(
  111. DATARMNET63b1a086d5,DATARMNET28bfe9e6ad);DATARMNET5ca94dbc3c(DATARMNETd691057b85
  112. );DATARMNETdef6cfba1c--;}}return!!DATARMNETdef6cfba1c;}static void
  113. DATARMNETad2b7fd8f5(struct work_struct*DATARMNET190b4452e8){struct
  114. DATARMNET2f26f1d597*DATARMNET7500205a68;unsigned long DATARMNETfb0677cc3c;bool
  115. DATARMNET6e1c466378;DATARMNET7500205a68=container_of(to_delayed_work(
  116. DATARMNET190b4452e8),struct DATARMNET2f26f1d597,DATARMNET190b4452e8);
  117. spin_lock_irqsave(&DATARMNET531b038fcd,DATARMNETfb0677cc3c);DATARMNET6e1c466378=
  118. DATARMNETb636687df3(DATARMNET7500205a68->DATARMNETcd94e0d3c7);if(
  119. DATARMNET6e1c466378){unsigned long DATARMNETf71ef1b8da;DATARMNETf71ef1b8da=
  120. msecs_to_jiffies(DATARMNETdbb408ba5d);schedule_delayed_work(&DATARMNET7500205a68
  121. ->DATARMNET190b4452e8,DATARMNETf71ef1b8da);}spin_unlock_irqrestore(&
  122. DATARMNET531b038fcd,DATARMNETfb0677cc3c);}static bool DATARMNETc529ac78b2(struct
  123. DATARMNETdadb4e2c65*DATARMNET75decd6f60,struct DATARMNETdadb4e2c65*
  124. DATARMNET6745cad668){if(DATARMNET75decd6f60->DATARMNET0d956cc77a!=
  125. DATARMNET6745cad668->DATARMNET0d956cc77a||DATARMNET75decd6f60->id!=
  126. DATARMNET6745cad668->id)return false;if(DATARMNET75decd6f60->DATARMNET0d956cc77a
  127. ==(0xd11+230-0xdf3))return DATARMNET75decd6f60->DATARMNETdfe430c2d6==
  128. DATARMNET6745cad668->DATARMNETdfe430c2d6&&DATARMNET75decd6f60->
  129. DATARMNET2cb607d686==DATARMNET6745cad668->DATARMNET2cb607d686;return!
  130. ipv6_addr_cmp(&DATARMNET75decd6f60->DATARMNET815cbb4bf5,&DATARMNET6745cad668->
  131. DATARMNET815cbb4bf5)&&!ipv6_addr_cmp(&DATARMNET75decd6f60->DATARMNETc3f31215b7,&
  132. DATARMNET6745cad668->DATARMNETc3f31215b7);}static struct DATARMNET6f3b954709*
  133. DATARMNET52b387f6cd(struct DATARMNETdadb4e2c65*DATARMNET54338da2ff){struct
  134. DATARMNET6f3b954709*DATARMNET63b1a086d5;unsigned long DATARMNETfb0677cc3c;
  135. spin_lock_irqsave(&DATARMNET531b038fcd,DATARMNETfb0677cc3c);
  136. hash_for_each_possible_rcu(DATARMNET6e79f38051,DATARMNET63b1a086d5,
  137. DATARMNETe8608dd267,DATARMNET54338da2ff->id){if(DATARMNET63b1a086d5->
  138. DATARMNET1717afebc7)continue;if(DATARMNETc529ac78b2(DATARMNET54338da2ff,&
  139. DATARMNET63b1a086d5->DATARMNET54338da2ff))goto DATARMNETbf4095f79e;}
  140. DATARMNET63b1a086d5=kzalloc(sizeof(*DATARMNET63b1a086d5),GFP_ATOMIC);if(!
  141. DATARMNET63b1a086d5)goto DATARMNETbf4095f79e;spin_lock_init(&DATARMNET63b1a086d5
  142. ->DATARMNET94b1f9ee09);INIT_LIST_HEAD(&DATARMNET63b1a086d5->DATARMNET0f34bf3ea9)
  143. ;memcpy(&DATARMNET63b1a086d5->DATARMNET54338da2ff,DATARMNET54338da2ff,sizeof(*
  144. DATARMNET54338da2ff));INIT_HLIST_NODE(&DATARMNET63b1a086d5->DATARMNETe8608dd267)
  145. ;hash_add_rcu(DATARMNET6e79f38051,&DATARMNET63b1a086d5->DATARMNETe8608dd267,
  146. DATARMNET54338da2ff->id);if(!DATARMNETdef6cfba1c){unsigned long
  147. DATARMNETf71ef1b8da;DATARMNETf71ef1b8da=msecs_to_jiffies(DATARMNETdbb408ba5d);
  148. schedule_delayed_work(&DATARMNETa41953a37b.DATARMNET190b4452e8,
  149. DATARMNETf71ef1b8da);}DATARMNETdef6cfba1c++;DATARMNETbf4095f79e:
  150. spin_unlock_irqrestore(&DATARMNET531b038fcd,DATARMNETfb0677cc3c);return
  151. DATARMNET63b1a086d5;}static int DATARMNET9d6ad3b16f(struct sk_buff*
  152. DATARMNET543491eb0f,struct DATARMNETb89ecedefc*DATARMNET3396919a68,struct
  153. DATARMNETdadb4e2c65*DATARMNET54338da2ff,struct DATARMNET8d3c2559ca*
  154. DATARMNET2d4b4cfc9e)__must_hold(RCU){struct skb_shared_info*DATARMNETa9599f487c=
  155. skb_shinfo(DATARMNET543491eb0f);struct DATARMNET6f3b954709*DATARMNET63b1a086d5;
  156. int DATARMNET61c2303133=(0xd26+209-0xdf6);if(DATARMNETa9599f487c->tskey){
  157. DATARMNETa9599f487c->tskey=(0xd2d+202-0xdf7);goto DATARMNETbf4095f79e;}
  158. DATARMNET5ca94dbc3c(DATARMNETd8273aa7e1);DATARMNETa9599f487c->tskey=
  159. (0xd26+209-0xdf6);DATARMNET63b1a086d5=DATARMNET52b387f6cd(DATARMNET54338da2ff);
  160. if(!DATARMNET63b1a086d5){DATARMNET61c2303133=(-(0xd26+209-0xdf6));goto
  161. DATARMNETbf4095f79e;}DATARMNET63b1a086d5->DATARMNET763f2e5fac=jiffies;if(
  162. DATARMNET63b1a086d5->DATARMNET7ed5754a5c){if(IS_ERR(DATARMNET63b1a086d5->
  163. DATARMNET7ed5754a5c))goto DATARMNETbf4095f79e;if(!DATARMNET4899053671(
  164. DATARMNET543491eb0f,DATARMNET63b1a086d5->DATARMNET7ed5754a5c)){
  165. DATARMNET5ca94dbc3c(DATARMNET7a58a5c1fc);DATARMNET61c2303133=(0xd2d+202-0xdf7);
  166. goto DATARMNETbf4095f79e;}DATARMNET5ca94dbc3c(DATARMNETba232077da);goto
  167. DATARMNETbf4095f79e;}if(DATARMNET54338da2ff->DATARMNETb65c469a15){unsigned long
  168. DATARMNETfb0677cc3c;spin_lock_irqsave(&DATARMNET63b1a086d5->DATARMNET94b1f9ee09,
  169. DATARMNETfb0677cc3c);list_add_tail(&DATARMNET543491eb0f->list,&
  170. DATARMNET63b1a086d5->DATARMNET0f34bf3ea9);spin_unlock_irqrestore(&
  171. DATARMNET63b1a086d5->DATARMNET94b1f9ee09,DATARMNETfb0677cc3c);
  172. DATARMNET61c2303133=(0xd2d+202-0xdf7);DATARMNET5ca94dbc3c(DATARMNETe75ad1a949);
  173. goto DATARMNETbf4095f79e;}if(DATARMNET3396919a68->DATARMNET4924e79411==
  174. IPPROTO_TCP||DATARMNET3396919a68->DATARMNET4924e79411==IPPROTO_UDP){struct
  175. udphdr*DATARMNET75be5f3406=(struct udphdr*)(DATARMNET543491eb0f->data+
  176. DATARMNET54338da2ff->DATARMNET611d08d671);DATARMNET3396919a68->
  177. DATARMNETf0d9de7e2f=DATARMNET75be5f3406->dest;if(DATARMNETa8b2566e6a(
  178. DATARMNET543491eb0f,DATARMNET3396919a68,DATARMNET54338da2ff->DATARMNET611d08d671
  179. )){if(DATARMNET0a4704e5e0(DATARMNET3396919a68)){kfree_skb(DATARMNET543491eb0f);
  180. DATARMNET61c2303133=(0xd2d+202-0xdf7);DATARMNET5ca94dbc3c(DATARMNET0981317411);
  181. goto DATARMNETbf4095f79e;}DATARMNET5ca94dbc3c(DATARMNETd1ad664d00);goto
  182. DATARMNET07fc49caf2;}}else if(DATARMNET3396919a68->DATARMNET4924e79411==
  183. IPPROTO_ESP){struct ip_esp_hdr*DATARMNET73ee6a7020=(struct ip_esp_hdr*)(
  184. DATARMNET543491eb0f->data+DATARMNET54338da2ff->DATARMNET611d08d671);
  185. DATARMNET3396919a68->DATARMNET906b2ee561=DATARMNET73ee6a7020->spi;}if(
  186. DATARMNET4eafcdee07(DATARMNET3396919a68)){u32 DATARMNET248f120dd5;
  187. DATARMNET63b1a086d5->DATARMNET7ed5754a5c=DATARMNET2d4b4cfc9e;if(!
  188. DATARMNET4899053671(DATARMNET543491eb0f,DATARMNET2d4b4cfc9e)){
  189. DATARMNET248f120dd5=DATARMNET7a58a5c1fc;DATARMNET61c2303133=(0xd2d+202-0xdf7);}
  190. else{DATARMNET248f120dd5=DATARMNETba232077da;}DATARMNET5ca94dbc3c(
  191. DATARMNET248f120dd5);DATARMNETc7c83f614f(DATARMNET63b1a086d5,true);goto
  192. DATARMNETbf4095f79e;}DATARMNET07fc49caf2:DATARMNET63b1a086d5->
  193. DATARMNET7ed5754a5c=ERR_PTR(-EINVAL);DATARMNETc7c83f614f(DATARMNET63b1a086d5,
  194. true);DATARMNETbf4095f79e:if(DATARMNET61c2303133)DATARMNETa9599f487c->tskey=
  195. (0xd2d+202-0xdf7);return DATARMNET61c2303133;}int DATARMNET579f75aa50(struct
  196. sk_buff*DATARMNET543491eb0f,int DATARMNET611d08d671,struct DATARMNETb89ecedefc*
  197. DATARMNET3396919a68,struct DATARMNET8d3c2559ca*DATARMNET2d4b4cfc9e)__must_hold(
  198. RCU){struct DATARMNETdadb4e2c65 DATARMNET54338da2ff={};struct iphdr*
  199. DATARMNET86f1f2cdc9=ip_hdr(DATARMNET543491eb0f);if(DATARMNET3396919a68->
  200. DATARMNET4924e79411!=IPPROTO_TCP&&DATARMNET3396919a68->DATARMNET4924e79411!=
  201. IPPROTO_UDP&&DATARMNET3396919a68->DATARMNET4924e79411!=IPPROTO_ESP)return-
  202. (0xd26+209-0xdf6);DATARMNET54338da2ff.DATARMNET0d956cc77a=(0xd11+230-0xdf3);
  203. DATARMNET54338da2ff.DATARMNETdfe430c2d6=DATARMNET86f1f2cdc9->saddr;
  204. DATARMNET54338da2ff.DATARMNET2cb607d686=DATARMNET86f1f2cdc9->daddr;
  205. DATARMNET54338da2ff.id=htonl((u32)ntohs(DATARMNET86f1f2cdc9->id));
  206. DATARMNET54338da2ff.DATARMNETb65c469a15=htons(DATARMNET86f1f2cdc9->frag_off)&
  207. IP_OFFSET;DATARMNET54338da2ff.DATARMNET611d08d671=(u16)DATARMNET611d08d671;
  208. return DATARMNET9d6ad3b16f(DATARMNET543491eb0f,DATARMNET3396919a68,&
  209. DATARMNET54338da2ff,DATARMNET2d4b4cfc9e);}int DATARMNETaca8ca54ed(struct sk_buff
  210. *DATARMNET543491eb0f,int DATARMNET611d08d671,struct DATARMNETb89ecedefc*
  211. DATARMNET3396919a68,struct DATARMNET8d3c2559ca*DATARMNET2d4b4cfc9e)__must_hold(
  212. RCU){struct DATARMNETdadb4e2c65 DATARMNET54338da2ff={};struct ipv6hdr*
  213. DATARMNETbf55123e5b=ipv6_hdr(DATARMNET543491eb0f);struct frag_hdr*frag_hdr;
  214. unsigned int DATARMNET7b34b7b5be;if(DATARMNET3396919a68->DATARMNET4924e79411!=
  215. IPPROTO_TCP&&DATARMNET3396919a68->DATARMNET4924e79411!=IPPROTO_UDP&&
  216. DATARMNET3396919a68->DATARMNET4924e79411!=IPPROTO_ESP&&DATARMNET3396919a68->
  217. DATARMNET4924e79411!=NEXTHDR_FRAGMENT)return-(0xd26+209-0xdf6);if(
  218. DATARMNET24669a931d(DATARMNET543491eb0f,&DATARMNET7b34b7b5be,NEXTHDR_FRAGMENT,
  219. NULL,NULL)<(0xd2d+202-0xdf7))return-(0xd26+209-0xdf6);frag_hdr=(struct frag_hdr*
  220. )(DATARMNET543491eb0f->data+DATARMNET7b34b7b5be);DATARMNET54338da2ff.
  221. DATARMNET0d956cc77a=(0xd03+244-0xdf1);memcpy(&DATARMNET54338da2ff.
  222. DATARMNET815cbb4bf5,&DATARMNETbf55123e5b->saddr,sizeof(DATARMNETbf55123e5b->
  223. saddr));memcpy(&DATARMNET54338da2ff.DATARMNETc3f31215b7,&DATARMNETbf55123e5b->
  224. daddr,sizeof(DATARMNETbf55123e5b->daddr));DATARMNET54338da2ff.id=frag_hdr->
  225. identification;DATARMNET54338da2ff.DATARMNETb65c469a15=htons(frag_hdr->frag_off)
  226. &IP6_OFFSET;DATARMNET54338da2ff.DATARMNET611d08d671=(u16)DATARMNET611d08d671;if(
  227. DATARMNET3396919a68->DATARMNET4924e79411==NEXTHDR_FRAGMENT)DATARMNET54338da2ff.
  228. DATARMNET611d08d671+=sizeof(*frag_hdr);return DATARMNET9d6ad3b16f(
  229. DATARMNET543491eb0f,DATARMNET3396919a68,&DATARMNET54338da2ff,DATARMNET2d4b4cfc9e
  230. );}int DATARMNET49c2c17e77(void){INIT_DELAYED_WORK(&DATARMNETa41953a37b.
  231. DATARMNET190b4452e8,DATARMNETad2b7fd8f5);return(0xd2d+202-0xdf7);}void
  232. DATARMNET8c0e010dfb(void){cancel_delayed_work_sync(&DATARMNETa41953a37b.
  233. DATARMNET190b4452e8);DATARMNETa41953a37b.DATARMNETcd94e0d3c7=true;
  234. schedule_delayed_work(&DATARMNETa41953a37b.DATARMNET190b4452e8,(0xd2d+202-0xdf7)
  235. );cancel_delayed_work_sync(&DATARMNETa41953a37b.DATARMNET190b4452e8);}void
  236. DATARMNETedae8262e1(struct DATARMNET8d3c2559ca*DATARMNET54338da2ff){struct
  237. DATARMNET6f3b954709*DATARMNET63b1a086d5;int DATARMNET5c2fd31d7b;rcu_read_lock();
  238. hash_for_each_rcu(DATARMNET6e79f38051,DATARMNET5c2fd31d7b,DATARMNET63b1a086d5,
  239. DATARMNETe8608dd267){if(DATARMNET63b1a086d5->DATARMNET7ed5754a5c==
  240. DATARMNET54338da2ff)DATARMNET63b1a086d5->DATARMNET7ed5754a5c=ERR_PTR(-EINVAL);}
  241. rcu_read_unlock();}