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wlan
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rmnet_wlan_connection.c

rmnet_wlan_connection.c 24 KB
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  1. // SPDX-License-Identifier: GPL-2.0-only
    2. 

  2. /* Copyright (c) 2021, The Linux Foundation. All rights reserved.
    3. 

  3.  * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
    4. 

  4.  *
    5. 

  5.  * RMNET WLAN connection management framework
    6. 

  6.  *
    7. 

  7.  */
    8. 

  8. 

  9. #include <linux/types.h>
    10. 

  10. #include <linux/skbuff.h>
    11. 

  11. #include <linux/netdevice.h>
    12. 

  12. #include <linux/spinlock.h>
    13. 

  13. #include <linux/rcupdate.h>
    14. 

  14. #include <linux/hashtable.h>
    15. 

  15. #include <linux/if_ether.h>
    16. 

  16. #include <linux/hrtimer.h>
    17. 

  17. #include <net/ip.h>
    18. 

  18. #include <net/ipv6.h>
    19. 

  19. #include <net/dst.h>
    20. 

  20. #include <net/netfilter/nf_conntrack.h>
    21. 

  21. #include "rmnet_module.h"
    22. 

  22. #include "rmnet_wlan.h"
    23. 

  23. #include "rmnet_wlan_connection.h"
    24. 

  24. #include "rmnet_wlan_stats.h"
    25. 

  25. #define DATARMNET5da8c68c19 (2000000000)
    26. 

  26. #define DATARMNET8fc07fbb24 ((0xeb7+1158-0x132d))
    27. 

  27. #define DATARMNETeaf0945284 \
    28. 

  28. 	(const_ilog2(DATARMNET8fc07fbb24))
    29. 

  29. extern void(*rmnet_wlan_ll_tuple_hook)(struct sk_buff*DATARMNET543491eb0f);
    30. 

  30. struct DATARMNET4f49486833{struct hlist_node DATARMNETe8608dd267;struct rcu_head
    31. 

  31.  DATARMNET28bfe9e6ad;struct hrtimer DATARMNET9f31ce5d2d;struct 
    32. 

  32. DATARMNET0ca9d8ead7 DATARMNET54338da2ff;struct DATARMNET8d3c2559ca 
    33. 

  33. DATARMNET7ed5754a5c;};static DEFINE_SPINLOCK(DATARMNET820642743b);static 
    34. 

  34. DEFINE_HASHTABLE(DATARMNET5413d6f8ec,DATARMNETeaf0945284);static bool 
    35. 

  35. DATARMNET5f3c9ed4da(struct DATARMNET0ca9d8ead7*DATARMNET75decd6f60,struct 
    36. 

  36. DATARMNET0ca9d8ead7*DATARMNET6745cad668){if(DATARMNET75decd6f60->
    37. 

  37. DATARMNET0d956cc77a!=DATARMNET6745cad668->DATARMNET0d956cc77a)return false;if(
    38. 

  38. DATARMNET75decd6f60->DATARMNET0d956cc77a==(0xd11+230-0xdf3))return 
    39. 

  39. DATARMNET75decd6f60->DATARMNETdfe430c2d6==DATARMNET6745cad668->
    40. 

  40. DATARMNETdfe430c2d6&&DATARMNET75decd6f60->DATARMNET2cb607d686==
    41. 

  41. DATARMNET6745cad668->DATARMNET2cb607d686;return!ipv6_addr_cmp(&
    42. 

  42. DATARMNET75decd6f60->DATARMNET815cbb4bf5,&DATARMNET6745cad668->
    43. 

  43. DATARMNET815cbb4bf5)&&!ipv6_addr_cmp(&DATARMNET75decd6f60->DATARMNETc3f31215b7,&
    44. 

  44. DATARMNET6745cad668->DATARMNETc3f31215b7);}static enum hrtimer_restart 
    45. 

  45. DATARMNET299a8a08b5(struct hrtimer*DATARMNET6e4292679f){struct 
    46. 

  46. DATARMNET4f49486833*DATARMNET63b1a086d5;unsigned long DATARMNETfb0677cc3c;
    47. 

  47. spin_lock_irqsave(&DATARMNET820642743b,DATARMNETfb0677cc3c);DATARMNET63b1a086d5=
    48. 

  48. container_of(DATARMNET6e4292679f,struct DATARMNET4f49486833,DATARMNET9f31ce5d2d)
    49. 

  49. ;hash_del_rcu(&DATARMNET63b1a086d5->DATARMNETe8608dd267);kfree_rcu(
    50. 

  50. DATARMNET63b1a086d5,DATARMNET28bfe9e6ad);spin_unlock_irqrestore(&
    51. 

  51. DATARMNET820642743b,DATARMNETfb0677cc3c);return HRTIMER_NORESTART;}static 
    52. 

  52. rx_handler_result_t DATARMNETc9ed97754a(struct sk_buff*DATARMNET543491eb0f,
    53. 

  53. uint8_t DATARMNET1a901c3d09){if(DATARMNET543491eb0f->dev&&(DATARMNET543491eb0f->
    54. 

  54. protocol==htons(ETH_P_IP))&&DATARMNET1a901c3d09==DATARMNET9bfbc31cd6){struct 
    55. 

  55. iphdr*DATARMNET86f1f2cdc9,DATARMNETbf6548198e;struct net_device*
    56. 

  56. DATARMNET813ca18d06=NULL;struct flowi4 DATARMNET099aa93adc={};struct rtable*
    57. 

  57. DATARMNET066b8bd537;struct neighbour*DATARMNET3f85732c70;int DATARMNET268a8314cf
    58. 

  58. =(0xd2d+202-0xdf7);DATARMNET86f1f2cdc9=skb_header_pointer(DATARMNET543491eb0f,
    59. 

  59. (0xd2d+202-0xdf7),sizeof(*DATARMNET86f1f2cdc9),&DATARMNETbf6548198e);if(!
    60. 

  60. DATARMNET86f1f2cdc9){DATARMNET17f6bc1be5(DATARMNET15454f969d);goto 
    61. 

  61. DATARMNETc1174a0f45;}DATARMNET813ca18d06=dev_get_by_name_rcu(&init_net,
    62. 

  62. DATARMNET934406764d());if(!DATARMNET813ca18d06){DATARMNET17f6bc1be5(
    63. 

  63. DATARMNETfa4b3dd44a);goto DATARMNETc1174a0f45;}DATARMNET543491eb0f->dev=
    64. 

  64. DATARMNET813ca18d06;memcpy(&DATARMNET099aa93adc.saddr,&DATARMNET86f1f2cdc9->
    65. 

  65. saddr,sizeof(__be32));memcpy(&DATARMNET099aa93adc.daddr,&DATARMNET86f1f2cdc9->
    66. 

  66. daddr,sizeof(__be32));DATARMNET099aa93adc.flowi4_oif=DATARMNET813ca18d06->
    67. 

  67. ifindex;DATARMNET099aa93adc.flowi4_flags=FLOWI_FLAG_KNOWN_NH;DATARMNET066b8bd537
    68. 

  68. =ip_route_output_key(&init_net,&DATARMNET099aa93adc);if(IS_ERR(
    69. 

  69. DATARMNET066b8bd537)){DATARMNET17f6bc1be5(DATARMNET72ab5e86d8);goto 
    70. 

  70. DATARMNETc1174a0f45;}DATARMNET3f85732c70=dst_neigh_lookup(&DATARMNET066b8bd537->
    71. 

  71. dst,&DATARMNET099aa93adc.daddr);ip_rt_put(DATARMNET066b8bd537);if(!
    72. 

  72. DATARMNET3f85732c70){DATARMNET17f6bc1be5(DATARMNET0e6bd55b8b);goto 
    73. 

  73. DATARMNETc1174a0f45;}if(DATARMNET3f85732c70->dev!=DATARMNET543491eb0f->dev||!
    74. 

  74. DATARMNET3f85732c70->dev->header_ops){DATARMNET17f6bc1be5(DATARMNET64aecaa865);
    75. 

  75. neigh_release(DATARMNET3f85732c70);goto DATARMNETc1174a0f45;}DATARMNET268a8314cf
    76. 

  76. =neigh_resolve_output(DATARMNET3f85732c70,DATARMNET543491eb0f);neigh_release(
    77. 

  77. DATARMNET3f85732c70);if(likely(DATARMNET268a8314cf==NET_XMIT_SUCCESS||
    78. 

  78. DATARMNET268a8314cf==NET_XMIT_CN)){DATARMNET17f6bc1be5(DATARMNETc1b437465b);}
    79. 

  79. else{DATARMNET17f6bc1be5(DATARMNET43a65c0be7);}return RX_HANDLER_CONSUMED;}else 
    80. 

  80. if(DATARMNET543491eb0f->dev&&(DATARMNET543491eb0f->protocol==htons(ETH_P_IPV6))
    81. 

  81. &&DATARMNET1a901c3d09==DATARMNET9bfbc31cd6){struct ipv6hdr*DATARMNETbf55123e5b,
    82. 

  82. DATARMNETcf1d9e2c1e;struct net_device*DATARMNET813ca18d06=NULL;struct flowi6 
    83. 

  83. DATARMNET8fbe36a2fa={};struct neighbour*DATARMNET3f85732c70;struct dst_entry*dst
    84. 

  84. ;int DATARMNET268a8314cf=(0xd2d+202-0xdf7);DATARMNETbf55123e5b=
    85. 

  85. skb_header_pointer(DATARMNET543491eb0f,(0xd2d+202-0xdf7),sizeof(*
    86. 

  86. DATARMNETbf55123e5b),&DATARMNETcf1d9e2c1e);if(!DATARMNETbf55123e5b){
    87. 

  87. DATARMNET17f6bc1be5(DATARMNET72f4fdd48a);goto DATARMNETc1174a0f45;}
    88. 

  88. DATARMNET813ca18d06=dev_get_by_name_rcu(&init_net,DATARMNET934406764d());if(!
    89. 

  89. DATARMNET813ca18d06){DATARMNET17f6bc1be5(DATARMNET9cff15f94d);goto 
    90. 

  90. DATARMNETc1174a0f45;}DATARMNET543491eb0f->dev=DATARMNET813ca18d06;memcpy(&
    91. 

  91. DATARMNET8fbe36a2fa.saddr,&DATARMNETbf55123e5b->saddr,sizeof(struct in6_addr));
    92. 

  92. memcpy(&DATARMNET8fbe36a2fa.daddr,&DATARMNETbf55123e5b->daddr,sizeof(struct 
    93. 

  93. in6_addr));DATARMNET8fbe36a2fa.flowi6_oif=DATARMNET813ca18d06->ifindex;
    94. 

  94. DATARMNET8fbe36a2fa.flowi6_flags=FLOWI_FLAG_KNOWN_NH;dst=ipv6_stub->
    95. 

  95. ipv6_dst_lookup_flow(&init_net,NULL,&DATARMNET8fbe36a2fa,NULL);if(IS_ERR(dst)){
    96. 

  96. DATARMNET17f6bc1be5(DATARMNETbf6e6853f9);goto DATARMNETc1174a0f45;}
    97. 

  97. DATARMNET3f85732c70=dst_neigh_lookup(dst,&DATARMNET8fbe36a2fa.daddr);dst_release
    98. 

  98. (dst);if(!DATARMNET3f85732c70){DATARMNET17f6bc1be5(DATARMNETa0da722329);goto 
    99. 

  99. DATARMNETc1174a0f45;}if(DATARMNET3f85732c70->dev!=DATARMNET543491eb0f->dev||!
    100. 

  100. DATARMNET3f85732c70->dev->header_ops){DATARMNET17f6bc1be5(DATARMNET729e252fb9);
    101. 

  101. neigh_release(DATARMNET3f85732c70);goto DATARMNETc1174a0f45;}DATARMNET268a8314cf
    102. 

  102. =neigh_resolve_output(DATARMNET3f85732c70,DATARMNET543491eb0f);neigh_release(
    103. 

  103. DATARMNET3f85732c70);if(likely(DATARMNET268a8314cf==NET_XMIT_SUCCESS||
    104. 

  104. DATARMNET268a8314cf==NET_XMIT_CN)){DATARMNET17f6bc1be5(DATARMNET04311361a2);}
    105. 

  105. else{DATARMNET17f6bc1be5(DATARMNET13bbe5f5c5);}return RX_HANDLER_CONSUMED;}else 
    106. 

  106. if(DATARMNET543491eb0f->dev&&(DATARMNET543491eb0f->protocol==htons(ETH_P_IP))&&
    107. 

  107. DATARMNET1a901c3d09==DATARMNET45ee632553){struct iphdr*DATARMNET86f1f2cdc9,
    108. 

  108. DATARMNETbf6548198e;struct net_device*DATARMNET813ca18d06=NULL;struct flowi4 
    109. 

  109. DATARMNET099aa93adc={};struct dst_entry*DATARMNETb5af46179c;struct rtable*
    110. 

  110. DATARMNET066b8bd537;struct net_device*DATARMNET39542b437e=NULL;
    111. 

  111. DATARMNET86f1f2cdc9=skb_header_pointer(DATARMNET543491eb0f,(0xd2d+202-0xdf7),
    112. 

  112. sizeof(*DATARMNET86f1f2cdc9),&DATARMNETbf6548198e);if(!DATARMNET86f1f2cdc9){
    113. 

  113. DATARMNET17f6bc1be5(DATARMNET7803c877c0);goto DATARMNETc1174a0f45;}
    114. 

  114. DATARMNET813ca18d06=dev_get_by_name_rcu(&init_net,DATARMNETe447822105());if(!
    115. 

  115. DATARMNET813ca18d06){DATARMNET17f6bc1be5(DATARMNET0978ff973f);goto 
    116. 

  116. DATARMNETc1174a0f45;}memcpy(&DATARMNET099aa93adc.daddr,&DATARMNET86f1f2cdc9->
    117. 

  117. daddr,sizeof(__be32));DATARMNET099aa93adc.flowi4_oif=DATARMNET813ca18d06->
    118. 

  118. ifindex;DATARMNET099aa93adc.flowi4_flags=FLOWI_FLAG_KNOWN_NH;DATARMNET066b8bd537
    119. 

  119. =ip_route_output_key(&init_net,&DATARMNET099aa93adc);if(IS_ERR(
    120. 

  120. DATARMNET066b8bd537)){DATARMNET17f6bc1be5(DATARMNET666fc9a664);
    121. 

  121. DATARMNET39542b437e=dev_get_by_name_rcu(&init_net,"dummy0");if(!
    122. 

  122. DATARMNET39542b437e){DATARMNET17f6bc1be5(DATARMNET521b065310);goto 
    123. 

  123. DATARMNETc1174a0f45;}DATARMNET099aa93adc.flowi4_oif=DATARMNET39542b437e->ifindex
    124. 

  124. ;DATARMNET099aa93adc.flowi4_flags=FLOWI_FLAG_KNOWN_NH;DATARMNET066b8bd537=
    125. 

  125. ip_route_output_key(&init_net,&DATARMNET099aa93adc);if(IS_ERR(
    126. 

  126. DATARMNET066b8bd537)){DATARMNET17f6bc1be5(DATARMNET8a15bcdcc7);goto 
    127. 

  127. DATARMNET74b365f6cc;}}memcpy(&DATARMNET099aa93adc.saddr,&DATARMNET86f1f2cdc9->
    128. 

  128. saddr,sizeof(__be32));DATARMNETb5af46179c=xfrm_lookup(&init_net,&
    129. 

  129. DATARMNET066b8bd537->dst,flowi4_to_flowi(&DATARMNET099aa93adc),NULL,
    130. 

  130. (0xd2d+202-0xdf7));DATARMNET066b8bd537=(struct rtable*)DATARMNETb5af46179c;if(
    131. 

  131. IS_ERR(DATARMNET066b8bd537)){DATARMNET17f6bc1be5(DATARMNETddb1bc27cb);goto 
    132. 

  132. DATARMNETc1174a0f45;}skb_dst_set(DATARMNET543491eb0f,DATARMNETb5af46179c);
    133. 

  133. dst_output(&init_net,NULL,DATARMNET543491eb0f);DATARMNET17f6bc1be5(
    134. 

  134. DATARMNETc730640bf7);return RX_HANDLER_CONSUMED;}else if(DATARMNET543491eb0f->
    135. 

  135. dev&&(DATARMNET543491eb0f->protocol==htons(ETH_P_IPV6))&&DATARMNET1a901c3d09==
    136. 

  136. DATARMNET45ee632553){struct ipv6hdr*DATARMNETbf55123e5b,DATARMNETcf1d9e2c1e;
    137. 

  137. struct flowi6 DATARMNET8fbe36a2fa={};struct dst_entry*dst=NULL,*
    138. 

  138. DATARMNETb5af46179c;struct rtable*DATARMNET066b8bd537;struct net_device*
    139. 

  139. DATARMNET39542b437e=NULL;DATARMNETbf55123e5b=skb_header_pointer(
    140. 

  140. DATARMNET543491eb0f,(0xd2d+202-0xdf7),sizeof(*DATARMNETbf55123e5b),&
    141. 

  141. DATARMNETcf1d9e2c1e);if(!DATARMNETbf55123e5b){DATARMNET17f6bc1be5(
    142. 

  142. DATARMNET0b9541c9b3);goto DATARMNETc1174a0f45;}memcpy(&DATARMNET8fbe36a2fa.saddr
    143. 

  143. ,&DATARMNETbf55123e5b->saddr,sizeof(struct in6_addr));memcpy(&
    144. 

  144. DATARMNET8fbe36a2fa.daddr,&DATARMNETbf55123e5b->daddr,sizeof(struct in6_addr));
    145. 

  145. dst=ipv6_stub->ipv6_dst_lookup_flow(&init_net,NULL,&DATARMNET8fbe36a2fa,NULL);if
    146. 

  146. (IS_ERR(dst)){DATARMNET17f6bc1be5(DATARMNET0078f1d36d);DATARMNET39542b437e=
    147. 

  147. dev_get_by_name_rcu(&init_net,"\x64\x75\x6d\x6d\x79\x30");if(!
    148. 

  148. DATARMNET39542b437e){DATARMNET17f6bc1be5(DATARMNET7c6c30b7d2);goto 
    149. 

  149. DATARMNETc1174a0f45;}DATARMNET8fbe36a2fa.flowi6_oif=DATARMNET39542b437e->ifindex
    150. 

  150. ;DATARMNET8fbe36a2fa.flowi6_flags=FLOWI_FLAG_KNOWN_NH;dst=ipv6_stub->
    151. 

  151. ipv6_dst_lookup_flow(&init_net,NULL,&DATARMNET8fbe36a2fa,NULL);if(IS_ERR(dst)){
    152. 

  152. DATARMNET17f6bc1be5(DATARMNET39d80cc483);goto DATARMNET74b365f6cc;}}
    153. 

  153. DATARMNETb5af46179c=xfrm_lookup(&init_net,dst,flowi6_to_flowi(&
    154. 

  154. DATARMNET8fbe36a2fa),NULL,(0xd2d+202-0xdf7));DATARMNET066b8bd537=(struct rtable*
    155. 

  155. )DATARMNETb5af46179c;if(IS_ERR(DATARMNET066b8bd537)){DATARMNET17f6bc1be5(
    156. 

  156. DATARMNET661bdeccd4);goto DATARMNETc1174a0f45;}skb_dst_set(DATARMNET543491eb0f,
    157. 

  157. DATARMNETb5af46179c);dst_output(&init_net,NULL,DATARMNET543491eb0f);
    158. 

  158. DATARMNET17f6bc1be5(DATARMNET28e7704d13);return RX_HANDLER_CONSUMED;}else if(
    159. 

  159. DATARMNET543491eb0f->dev&&(DATARMNET543491eb0f->protocol==htons(ETH_P_IP))&&
    160. 

  160. DATARMNET1a901c3d09==DATARMNET356f2a237e){struct iphdr*DATARMNET86f1f2cdc9,
    161. 

  161. DATARMNETbf6548198e;struct flowi4 DATARMNET099aa93adc={};struct net_device*
    162. 

  162. DATARMNET813ca18d06=NULL;struct dst_entry*DATARMNETb5af46179c;struct net_device*
    163. 

  163. DATARMNET39542b437e=NULL;struct rtable*DATARMNET066b8bd537;DATARMNET86f1f2cdc9=
    164. 

  164. skb_header_pointer(DATARMNET543491eb0f,(0xd2d+202-0xdf7),sizeof(*
    165. 

  165. DATARMNET86f1f2cdc9),&DATARMNETbf6548198e);if(!DATARMNET86f1f2cdc9){
    166. 

  166. DATARMNET17f6bc1be5(DATARMNET15454f969d);goto DATARMNETc1174a0f45;}
    167. 

  167. DATARMNET813ca18d06=dev_get_by_name_rcu(&init_net,DATARMNET934406764d());if(!
    168. 

  168. DATARMNET813ca18d06){DATARMNET17f6bc1be5(DATARMNET4c5aeeb476);goto 
    169. 

  169. DATARMNETc1174a0f45;}memcpy(&DATARMNET099aa93adc.daddr,&DATARMNET86f1f2cdc9->
    170. 

  170. daddr,sizeof(__be32));DATARMNET099aa93adc.flowi4_oif=DATARMNET813ca18d06->
    171. 

  171. ifindex;DATARMNET099aa93adc.flowi4_flags=FLOWI_FLAG_KNOWN_NH;DATARMNET066b8bd537
    172. 

  172. =ip_route_output_key(&init_net,&DATARMNET099aa93adc);if(IS_ERR(
    173. 

  173. DATARMNET066b8bd537)){DATARMNET17f6bc1be5(DATARMNET9bdb1c4072);
    174. 

  174. DATARMNET39542b437e=dev_get_by_name_rcu(&init_net,"\x64\x75\x6d\x6d\x79\x30");if
    175. 

  175. (!DATARMNET39542b437e){DATARMNET17f6bc1be5(DATARMNET5abdc89190);goto 
    176. 

  176. DATARMNETc1174a0f45;}DATARMNET099aa93adc.flowi4_oif=DATARMNET39542b437e->ifindex
    177. 

  177. ;DATARMNET099aa93adc.flowi4_flags=FLOWI_FLAG_KNOWN_NH;DATARMNET066b8bd537=
    178. 

  178. ip_route_output_key(&init_net,&DATARMNET099aa93adc);if(IS_ERR(
    179. 

  179. DATARMNET066b8bd537)){DATARMNET17f6bc1be5(DATARMNET101af46c1c);goto 
    180. 

  180. DATARMNET74b365f6cc;}}memcpy(&DATARMNET099aa93adc.saddr,&DATARMNET86f1f2cdc9->
    181. 

  181. saddr,sizeof(__be32));DATARMNETb5af46179c=xfrm_lookup(&init_net,&
    182. 

  182. DATARMNET066b8bd537->dst,flowi4_to_flowi(&DATARMNET099aa93adc),NULL,
    183. 

  183. (0xd2d+202-0xdf7));DATARMNET066b8bd537=(struct rtable*)DATARMNETb5af46179c;if(
    184. 

  184. IS_ERR(DATARMNET066b8bd537)){DATARMNET17f6bc1be5(DATARMNET9a57ef32d3);goto 
    185. 

  185. DATARMNETc1174a0f45;}skb_dst_set(DATARMNET543491eb0f,DATARMNETb5af46179c);
    186. 

  186. dst_output(&init_net,NULL,DATARMNET543491eb0f);DATARMNET17f6bc1be5(
    187. 

  187. DATARMNET9a940d93dc);return RX_HANDLER_CONSUMED;}else if(DATARMNET543491eb0f->
    188. 

  188. dev&&(DATARMNET543491eb0f->protocol==htons(ETH_P_IPV6))&&DATARMNET1a901c3d09==
    189. 

  189. DATARMNET356f2a237e){struct ipv6hdr*DATARMNETbf55123e5b,DATARMNETcf1d9e2c1e;
    190. 

  190. struct flowi6 DATARMNET8fbe36a2fa={};struct dst_entry*dst=NULL,*
    191. 

  191. DATARMNETb5af46179c;struct rtable*DATARMNET066b8bd537;struct net_device*
    192. 

  192. DATARMNET39542b437e=NULL;DATARMNETbf55123e5b=skb_header_pointer(
    193. 

  193. DATARMNET543491eb0f,(0xd2d+202-0xdf7),sizeof(*DATARMNETbf55123e5b),&
    194. 

  194. DATARMNETcf1d9e2c1e);if(!DATARMNETbf55123e5b){DATARMNET17f6bc1be5(
    195. 

  195. DATARMNET6b0ed53aab);goto DATARMNETc1174a0f45;}memcpy(&DATARMNET8fbe36a2fa.saddr
    196. 

  196. ,&DATARMNETbf55123e5b->saddr,sizeof(struct in6_addr));memcpy(&
    197. 

  197. DATARMNET8fbe36a2fa.daddr,&DATARMNETbf55123e5b->daddr,sizeof(struct in6_addr));
    198. 

  198. dst=ipv6_stub->ipv6_dst_lookup_flow(&init_net,NULL,&DATARMNET8fbe36a2fa,NULL);if
    199. 

  199. (IS_ERR(dst)){DATARMNET17f6bc1be5(DATARMNET22ac945cae);DATARMNET39542b437e=
    200. 

  200. dev_get_by_name_rcu(&init_net,"\x64\x75\x6d\x6d\x79\x30");if(!
    201. 

  201. DATARMNET39542b437e){DATARMNET17f6bc1be5(DATARMNETf326b7c906);goto 
    202. 

  202. DATARMNETc1174a0f45;}DATARMNET8fbe36a2fa.flowi6_oif=DATARMNET39542b437e->ifindex
    203. 

  203. ;DATARMNET8fbe36a2fa.flowi6_flags=FLOWI_FLAG_KNOWN_NH;dst=ipv6_stub->
    204. 

  204. ipv6_dst_lookup_flow(&init_net,NULL,&DATARMNET8fbe36a2fa,NULL);if(IS_ERR(dst)){
    205. 

  205. DATARMNET17f6bc1be5(DATARMNET544d78ede7);goto DATARMNET74b365f6cc;}}
    206. 

  206. DATARMNETb5af46179c=xfrm_lookup(&init_net,dst,flowi6_to_flowi(&
    207. 

  207. DATARMNET8fbe36a2fa),NULL,(0xd2d+202-0xdf7));DATARMNET066b8bd537=(struct rtable*
    208. 

  208. )DATARMNETb5af46179c;if(IS_ERR(DATARMNET066b8bd537)){DATARMNET17f6bc1be5(
    209. 

  209. DATARMNET97b44d0c09);goto DATARMNETc1174a0f45;}skb_dst_set(DATARMNET543491eb0f,
    210. 

  210. DATARMNETb5af46179c);dst_output(&init_net,NULL,DATARMNET543491eb0f);
    211. 

  211. DATARMNET17f6bc1be5(DATARMNETf954265acb);return RX_HANDLER_CONSUMED;}
    212. 

  212. DATARMNET74b365f6cc:return RX_HANDLER_PASS;DATARMNETc1174a0f45:kfree_skb(
    213. 

  213. DATARMNET543491eb0f);return RX_HANDLER_CONSUMED;}static rx_handler_result_t 
    214. 

  214. DATARMNET68fe094884(struct sk_buff**DATARMNET89946cec52){struct 
    215. 

  215. DATARMNET0ca9d8ead7 DATARMNETa76763310b={};struct DATARMNET4f49486833*
    216. 

  216. DATARMNET63b1a086d5;struct sk_buff*DATARMNET543491eb0f=*DATARMNET89946cec52;
    217. 

  217. unsigned long DATARMNETfb0677cc3c;struct DATARMNET8d3c2559ca DATARMNET2d4b4cfc9e
    218. 

  218. ;struct DATARMNET41b426061d*DATARMNET8184934307;uint8_t DATARMNET1a901c3d09=
    219. 

  219. DATARMNETdcafdec32a;if(!DATARMNET543491eb0f||DATARMNET543491eb0f->pkt_type==
    220. 

  220. PACKET_LOOPBACK)return RX_HANDLER_PASS;if(DATARMNET543491eb0f->protocol==htons(
    221. 

  221. ETH_P_IP)){struct iphdr*DATARMNET86f1f2cdc9,DATARMNETbf6548198e;
    222. 

  222. DATARMNET86f1f2cdc9=skb_header_pointer(DATARMNET543491eb0f,(0xd2d+202-0xdf7),
    223. 

  223. sizeof(*DATARMNET86f1f2cdc9),&DATARMNETbf6548198e);if(!DATARMNET86f1f2cdc9)goto 
    224. 

  224. DATARMNETbf4095f79e;DATARMNET2d4b4cfc9e.DATARMNET0dc14167a1=DATARMNET86f1f2cdc9
    225. 

  225. ->saddr;DATARMNET2d4b4cfc9e.DATARMNET0d956cc77a=(0xd11+230-0xdf3);}else if(
    226. 

  226. DATARMNET543491eb0f->protocol==htons(ETH_P_IPV6)){struct ipv6hdr*
    227. 

  227. DATARMNETbf55123e5b,DATARMNETcf1d9e2c1e;DATARMNETbf55123e5b=skb_header_pointer(
    228. 

  228. DATARMNET543491eb0f,(0xd2d+202-0xdf7),sizeof(*DATARMNETbf55123e5b),&
    229. 

  229. DATARMNETcf1d9e2c1e);if(!DATARMNETbf55123e5b)goto DATARMNETbf4095f79e;memcpy(&
    230. 

  230. DATARMNET2d4b4cfc9e.DATARMNET5700daac01,&DATARMNETbf55123e5b->saddr,sizeof(
    231. 

  231. DATARMNET2d4b4cfc9e.DATARMNET5700daac01));DATARMNET2d4b4cfc9e.
    232. 

  232. DATARMNET0d956cc77a=(0xd03+244-0xdf1);}else{goto DATARMNETbf4095f79e;}
    233. 

  233. rcu_read_lock();DATARMNET8184934307=DATARMNETcc0a01df2a(&DATARMNET2d4b4cfc9e);
    234. 

  234. rcu_read_unlock();if(!DATARMNET8184934307)goto DATARMNETbf4095f79e;
    235. 

  235. DATARMNET1a901c3d09=DATARMNET8184934307->DATARMNET7ed5754a5c.DATARMNET9954a624ac
    236. 

  236. ;if(DATARMNET1a901c3d09==DATARMNETdcafdec32a)goto DATARMNETbf4095f79e;if(
    237. 

  237. DATARMNET543491eb0f->dev&&DATARMNET1a901c3d09==DATARMNET9bfbc31cd6)nf_ct_set(
    238. 

  238. DATARMNET543491eb0f,NULL,IP_CT_UNTRACKED);if(DATARMNET543491eb0f->protocol==
    239. 

  239. htons(ETH_P_IP)){struct iphdr*DATARMNET86f1f2cdc9,DATARMNETbf6548198e;
    240. 

  240. DATARMNET86f1f2cdc9=skb_header_pointer(DATARMNET543491eb0f,(0xd2d+202-0xdf7),
    241. 

  241. sizeof(*DATARMNET86f1f2cdc9),&DATARMNETbf6548198e);if(!DATARMNET86f1f2cdc9)goto 
    242. 

  242. DATARMNETbf4095f79e;if(DATARMNET86f1f2cdc9->protocol==IPPROTO_TCP)goto 
    243. 

  243. DATARMNET9b3d23a43b;if(DATARMNET86f1f2cdc9->protocol!=IPPROTO_ICMP)goto 
    244. 

  244. DATARMNETbf4095f79e;DATARMNETa76763310b.DATARMNETdfe430c2d6=DATARMNET86f1f2cdc9
    245. 

  245. ->saddr;DATARMNETa76763310b.DATARMNET2cb607d686=DATARMNET86f1f2cdc9->daddr;
    246. 

  246. DATARMNETa76763310b.DATARMNET0d956cc77a=(0xd11+230-0xdf3);}else if(
    247. 

  247. DATARMNET543491eb0f->protocol==htons(ETH_P_IPV6)){struct ipv6hdr*
    248. 

  248. DATARMNETbf55123e5b,DATARMNETcf1d9e2c1e;__be16 frag_off;u8 DATARMNET65293f17c4;
    249. 

  249. DATARMNETbf55123e5b=skb_header_pointer(DATARMNET543491eb0f,(0xd2d+202-0xdf7),
    250. 

  250. sizeof(*DATARMNETbf55123e5b),&DATARMNETcf1d9e2c1e);if(!DATARMNETbf55123e5b)goto 
    251. 

  251. DATARMNETbf4095f79e;DATARMNET65293f17c4=DATARMNETbf55123e5b->nexthdr;if(
    252. 

  252. ipv6_skip_exthdr(DATARMNET543491eb0f,sizeof(*DATARMNETbf55123e5b),&
    253. 

  253. DATARMNET65293f17c4,&frag_off)<(0xd2d+202-0xdf7))goto DATARMNETbf4095f79e;if(
    254. 

  254. frag_off&&DATARMNET65293f17c4==NEXTHDR_FRAGMENT)goto DATARMNETbf4095f79e;if(
    255. 

  255. DATARMNET65293f17c4==IPPROTO_TCP)goto DATARMNET9b3d23a43b;if(DATARMNET65293f17c4
    256. 

  256. !=IPPROTO_ICMPV6)goto DATARMNETbf4095f79e;memcpy(&DATARMNETa76763310b.
    257. 

  257. DATARMNET815cbb4bf5,&DATARMNETbf55123e5b->saddr,sizeof(DATARMNETa76763310b.
    258. 

  258. DATARMNET815cbb4bf5));memcpy(&DATARMNETa76763310b.DATARMNETc3f31215b7,&
    259. 

  259. DATARMNETbf55123e5b->daddr,sizeof(DATARMNETa76763310b.DATARMNETc3f31215b7));
    260. 

  260. DATARMNETa76763310b.DATARMNET0d956cc77a=(0xd03+244-0xdf1);}else{goto 
    261. 

  261. DATARMNETbf4095f79e;}rcu_read_lock();hash_for_each_possible_rcu(
    262. 

  262. DATARMNET5413d6f8ec,DATARMNET63b1a086d5,DATARMNETe8608dd267,DATARMNETa76763310b.
    263. 

  263. DATARMNET2cb607d686){if(!DATARMNET5f3c9ed4da(&DATARMNET63b1a086d5->
    264. 

  264. DATARMNET54338da2ff,&DATARMNETa76763310b))continue;if(likely(hrtimer_is_queued(&
    265. 

  265. DATARMNET63b1a086d5->DATARMNET9f31ce5d2d)))hrtimer_start(&DATARMNET63b1a086d5->
    266. 

  266. DATARMNET9f31ce5d2d,DATARMNET5da8c68c19,HRTIMER_MODE_REL);rcu_read_unlock();goto
    267. 

  267.  DATARMNETbf4095f79e;}rcu_read_unlock();spin_lock_irqsave(&DATARMNET820642743b,
    268. 

  268. DATARMNETfb0677cc3c);DATARMNET63b1a086d5=kzalloc(sizeof(*DATARMNET63b1a086d5),
    269. 

  269. GFP_ATOMIC);if(!DATARMNET63b1a086d5){spin_unlock_irqrestore(&DATARMNET820642743b
    270. 

  270. ,DATARMNETfb0677cc3c);goto DATARMNETbf4095f79e;}INIT_HLIST_NODE(&
    271. 

  271. DATARMNET63b1a086d5->DATARMNETe8608dd267);memcpy(&DATARMNET63b1a086d5->
    272. 

  272. DATARMNET54338da2ff,&DATARMNETa76763310b,sizeof(DATARMNETa76763310b));
    273. 

  273. DATARMNET63b1a086d5->DATARMNET7ed5754a5c.DATARMNET57656f6f2f=DATARMNET543491eb0f
    274. 

  274. ->dev;hrtimer_init(&DATARMNET63b1a086d5->DATARMNET9f31ce5d2d,CLOCK_MONOTONIC,
    275. 

  275. HRTIMER_MODE_REL);DATARMNET63b1a086d5->DATARMNET9f31ce5d2d.function=
    276. 

  276. DATARMNET299a8a08b5;hrtimer_start(&DATARMNET63b1a086d5->DATARMNET9f31ce5d2d,
    277. 

  277. DATARMNET5da8c68c19,HRTIMER_MODE_REL);hash_add_rcu(DATARMNET5413d6f8ec,&
    278. 

  278. DATARMNET63b1a086d5->DATARMNETe8608dd267,DATARMNETa76763310b.DATARMNET2cb607d686
    279. 

  279. );spin_unlock_irqrestore(&DATARMNET820642743b,DATARMNETfb0677cc3c);
    280. 

  280. DATARMNETbf4095f79e:return DATARMNETc9ed97754a(DATARMNET543491eb0f,
    281. 

  281. DATARMNET1a901c3d09);DATARMNET9b3d23a43b:DATARMNET7ca470d54b(DATARMNET543491eb0f
    282. 

  282. ,TCP_FLAG_SYN);return DATARMNETc9ed97754a(DATARMNET543491eb0f,
    283. 

  283. DATARMNET1a901c3d09);}static void DATARMNETbc6bd11f47(struct net_device*
    284. 

  284. DATARMNET00dcb79bc4){struct DATARMNET4f49486833*DATARMNET63b1a086d5;int 
    285. 

  285. DATARMNET5c2fd31d7b;rcu_read_lock();hash_for_each_rcu(DATARMNET5413d6f8ec,
    286. 

  286. DATARMNET5c2fd31d7b,DATARMNET63b1a086d5,DATARMNETe8608dd267){if(
    287. 

  287. DATARMNET63b1a086d5->DATARMNET7ed5754a5c.DATARMNET57656f6f2f==
    288. 

  288. DATARMNET00dcb79bc4)hrtimer_cancel(&DATARMNET63b1a086d5->DATARMNET9f31ce5d2d);}
    289. 

  289. rcu_read_unlock();}static int DATARMNET81ab4de243(struct notifier_block*
    290. 

  290. DATARMNET272c159b3c,unsigned long DATARMNET7f045a1e6e,void*data){struct 
    291. 

  291. net_device*DATARMNET00dcb79bc4=netdev_notifier_info_to_dev(data);if(!
    292. 

  292. DATARMNET00dcb79bc4||strncmp(DATARMNET00dcb79bc4->name,
    293. 

  293. "\x72\x5f\x72\x6d\x6e\x65\x74\x5f\x64\x61\x74\x61",(0xd19+238-0xdfb)))return 
    294. 

  294. NOTIFY_DONE;switch(DATARMNET7f045a1e6e){case NETDEV_UNREGISTER:
    295. 

  295. netdev_rx_handler_unregister(DATARMNET00dcb79bc4);DATARMNETbc6bd11f47(
    296. 

  296. DATARMNET00dcb79bc4);break;case NETDEV_REGISTER:if(netdev_rx_handler_register(
    297. 

  297. DATARMNET00dcb79bc4,DATARMNET68fe094884,NULL))pr_err(
    298. 

  298. "\x25\x73\x28\x29\x3a\x20\x52\x65\x67\x69\x73\x74\x65\x72\x69\x6e\x67\x20\x68\x61\x6e\x64\x6c\x65\x72\x20\x6f\x6e\x20\x25\x73\x20\x66\x61\x69\x6c\x65\x64" "\n"
    299. 

  299. ,__func__,DATARMNET00dcb79bc4->name);break;default:break;}return NOTIFY_DONE;}
    300. 

  300. static struct notifier_block DATARMNET61d0113123={.notifier_call=
    301. 

  301. DATARMNET81ab4de243,};struct DATARMNET8d3c2559ca*DATARMNET07f0e0f286(struct 
    302. 

  302. DATARMNET0ca9d8ead7*DATARMNET54338da2ff)__must_hold(RCU){struct 
    303. 

  303. DATARMNET4f49486833*DATARMNET63b1a086d5;hash_for_each_possible_rcu(
    304. 

  304. DATARMNET5413d6f8ec,DATARMNET63b1a086d5,DATARMNETe8608dd267,DATARMNET54338da2ff
    305. 

  305. ->DATARMNET2cb607d686){if(!DATARMNET5f3c9ed4da(&DATARMNET63b1a086d5->
    306. 

  306. DATARMNET54338da2ff,DATARMNET54338da2ff))continue;return&DATARMNET63b1a086d5->
    307. 

  307. DATARMNET7ed5754a5c;}return NULL;}void DATARMNETf4e1a29dbc(void){struct 
    308. 

  308. DATARMNET4f49486833*DATARMNET63b1a086d5;int DATARMNET5c2fd31d7b;rcu_read_lock();
    309. 

  309. hash_for_each_rcu(DATARMNET5413d6f8ec,DATARMNET5c2fd31d7b,DATARMNET63b1a086d5,
    310. 

  310. DATARMNETe8608dd267)hrtimer_cancel(&DATARMNET63b1a086d5->DATARMNET9f31ce5d2d);
    311. 

  311. rcu_read_unlock();}void DATARMNET6f73df41cd(struct sk_buff*DATARMNET543491eb0f){
    312. 

  312. int protocol=-(0xd26+209-0xdf6);struct DATARMNETe117226f58*DATARMNET3396919a68=
    313. 

  313. rcu_dereference(DATARMNETcde6e442f5);if(!DATARMNET3396919a68)return;if(
    314. 

  314. DATARMNET543491eb0f->protocol==htons(ETH_P_IP)){struct iphdr*DATARMNET86f1f2cdc9
    315. 

  315. ,DATARMNETbf6548198e;DATARMNET86f1f2cdc9=skb_header_pointer(DATARMNET543491eb0f,
    316. 

  316. (0xd2d+202-0xdf7),sizeof(*DATARMNET86f1f2cdc9),&DATARMNETbf6548198e);if(!
    317. 

  317. DATARMNET86f1f2cdc9)return;if(DATARMNET86f1f2cdc9->version!=DATARMNET3396919a68
    318. 

  318. ->DATARMNET0d956cc77a&&DATARMNET86f1f2cdc9->saddr!=DATARMNET3396919a68->
    319. 

  319. DATARMNETdfe430c2d6&&DATARMNET86f1f2cdc9->daddr!=DATARMNET3396919a68->
    320. 

  320. DATARMNET2cb607d686)return;protocol=DATARMNET86f1f2cdc9->protocol;}else if(
    321. 

  321. DATARMNET543491eb0f->protocol==htons(ETH_P_IPV6)){struct ipv6hdr*
    322. 

  322. DATARMNETbf55123e5b,DATARMNETcf1d9e2c1e;DATARMNETbf55123e5b=skb_header_pointer(
    323. 

  323. DATARMNET543491eb0f,(0xd2d+202-0xdf7),sizeof(*DATARMNETbf55123e5b),&
    324. 

  324. DATARMNETcf1d9e2c1e);if(!DATARMNETbf55123e5b)return;if(DATARMNETbf55123e5b->
    325. 

  325. version!=DATARMNET3396919a68->DATARMNET0d956cc77a&&ipv6_addr_cmp(&
    326. 

  326. DATARMNETbf55123e5b->saddr,&DATARMNET3396919a68->DATARMNET815cbb4bf5)&&
    327. 

  327. ipv6_addr_cmp(&DATARMNETbf55123e5b->daddr,&DATARMNET3396919a68->
    328. 

  328. DATARMNETc3f31215b7))return;protocol=DATARMNETbf55123e5b->nexthdr;}if(protocol==
    329. 

  329. IPPROTO_UDP){if(udp_hdr(DATARMNET543491eb0f)->source==DATARMNET3396919a68->
    330. 

  330. DATARMNET08e913477e&&udp_hdr(DATARMNET543491eb0f)->dest==DATARMNET3396919a68->
    331. 

  331. DATARMNETda7f7fa492)goto DATARMNET9573fcc9c6;}return;DATARMNET9573fcc9c6:
    332. 

  332. DATARMNET543491eb0f->priority=2607612160;DATARMNET5ca94dbc3c(DATARMNETc2cade1d75
    333. 

  333. );}static const struct rmnet_module_hook_register_info DATARMNETd0b5ecd937={.
    334. 

  334. hooknum=RMNET_MODULE_HOOK_WLAN_FLOW_MATCH,.func=DATARMNET6f73df41cd,};void 
    335. 

  335. DATARMNET333c107558(void){rcu_assign_pointer(rmnet_wlan_ll_tuple_hook,
    336. 

  336. DATARMNET6f73df41cd);rmnet_module_hook_register(&DATARMNETd0b5ecd937,
    337. 

  337. (0xd26+209-0xdf6));}void DATARMNET4c08c7210c(void){rcu_assign_pointer(
    338. 

  338. rmnet_wlan_ll_tuple_hook,NULL);rmnet_module_hook_unregister(&DATARMNETd0b5ecd937
    339. 

  339. ,(0xd26+209-0xdf6));}int DATARMNET9f106ed933(void){int DATARMNET268a8314cf;
    340. 

  340. DATARMNET268a8314cf=register_netdevice_notifier(&DATARMNET61d0113123);if(
    341. 

  341. DATARMNET268a8314cf)pr_err(
    342. 

  342. "\x25\x73\x28\x29\x3a\x20\x6e\x6f\x74\x69\x66\x69\x65\x72\x20\x66\x61\x69\x6c\x65\x64" "\n"
    343. 

  343. ,__func__);return DATARMNET268a8314cf;}int DATARMNETf56cbaa2b1(void){int 
    344. 

  344. DATARMNET268a8314cf;DATARMNET268a8314cf=unregister_netdevice_notifier(&
    345. 

  345. DATARMNET61d0113123);if(DATARMNET268a8314cf)pr_err(
    346. 

  346. "\x25\x73\x28\x29\x3a\x20\x6e\x6f\x74\x69\x66\x65\x72\x20\x66\x61\x69\x6c\x65\x64" "\n"
    347. 

  347. ,__func__);return DATARMNET268a8314cf;}
    348.