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rmnet_sch_main.c

rmnet_sch_main.c 9.9 KB
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  1. /* Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved.
    2. 

  2.  *
    3. 

  3.  * This program is free software; you can redistribute it and/or modify
    4. 

  4.  * it under the terms of the GNU General Public License version 2 and
    5. 

  5.  * only version 2 as published by the Free Software Foundation.
    6. 

  6.  *
    7. 

  7.  * This program is distributed in the hope that it will be useful,
    8. 

  8.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    9. 

  9.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    10. 

  10.  * GNU General Public License for more details.
    11. 

  11.  */
    12. 

  12. 

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

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

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

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

  17. #include <linux/errno.h>
    18. 

  18. #include <linux/skbuff.h>
    19. 

  19. #include <linux/rtnetlink.h>
    20. 

  20. #include <net/pkt_sched.h>
    21. 

  21. static char*verinfo[]={"\x62\x31\x30\x66\x32\x65\x61\x32",
    22. 

  22. "\x65\x36\x33\x37\x31\x64\x34\x30","\x37\x34\x31\x35\x39\x32\x31\x63",
    23. 

  23. "\x61\x65\x32\x34\x34\x61\x39\x64"};module_param_array(verinfo,charp,NULL,
    24. 

  24. (0xcb7+5769-0x221c));MODULE_PARM_DESC(verinfo,
    25. 

  25. "\x56\x65\x72\x73\x69\x6f\x6e\x20\x6f\x66\x20\x74\x68\x65\x20\x64\x72\x69\x76\x65\x72"
    26. 

  26. );static const char*DATARMNETf1bb41174a="\x31\x2e\x32";
    27. 

  27. #define DATARMNETe632b2e0b0 (0xd11+230-0xdf3)
    28. 

  28. static const u8 DATARMNET93bdeed8cb[TC_PRIO_MAX+(0xd26+209-0xdf6)]={
    29. 

  29. (0xd18+223-0xdf4),(0xd18+223-0xdf4),(0xd18+223-0xdf4),(0xd18+223-0xdf4),
    30. 

  30. (0xd18+223-0xdf4),(0xd18+223-0xdf4),(0xd2d+202-0xdf7),(0xd26+209-0xdf6),
    31. 

  31. (0xd1f+216-0xdf5),(0xd18+223-0xdf4),(0xd18+223-0xdf4),(0xd18+223-0xdf4),
    32. 

  32. (0xd18+223-0xdf4),(0xd18+223-0xdf4),(0xd18+223-0xdf4),(0xd18+223-0xdf4)};static 
    33. 

  33. const int DATARMNET91bbdde74c[DATARMNETe632b2e0b0]={(0xbf7+4421-0x1c3c)*
    34. 

  34. (0xdf7+2629-0x143c),(0xef7+694-0x112d)*(0xdf7+2629-0x143c),(0xef7+1142-0x132d)*
    35. 

  35. (0xdf7+2629-0x143c),(0xeb7+1174-0x132d)*(0xdf7+2629-0x143c)};static const int 
    36. 

  36. DATARMNET9dd1382d86[DATARMNETe632b2e0b0]={(0xd35+210-0xdff),(0xd03+244-0xdf1),
    37. 

  37. (0xd11+230-0xdf3),(0xd1f+216-0xdf5)};static const int DATARMNET14ed95ab67[
    38. 

  38. DATARMNETe632b2e0b0]={(0xd11+230-0xdf3),(0xd18+223-0xdf4),(0xd1f+216-0xdf5),
    39. 

  39. (0xd26+209-0xdf6)};struct DATARMNET93da852cc2{struct qdisc_skb_head q;int 
    40. 

  40. DATARMNET1de7b3d891;int DATARMNETf9afebb887;unsigned int DATARMNETb93c9b44d9;
    41. 

  41. unsigned int DATARMNET04fa439380;};struct DATARMNET74e95d25df{struct 
    42. 

  42. DATARMNET93da852cc2 DATARMNETb4180393e4[DATARMNETe632b2e0b0];};static int 
    43. 

  43. DATARMNETdaae0b9ea8(struct DATARMNET74e95d25df*DATARMNETe823dcf978){int 
    44. 

  44. DATARMNET70fa801d65=DATARMNETe632b2e0b0;int DATARMNET3c5d4329d8=
    45. 

  45. DATARMNETe632b2e0b0;int DATARMNET2372d14a3d,DATARMNET713b43476b,
    46. 

  46. DATARMNETdc41089b89=-(0xd26+209-0xdf6);for(DATARMNET2372d14a3d=(0xd2d+202-0xdf7)
    47. 

  47. ;DATARMNET2372d14a3d<DATARMNETe632b2e0b0;DATARMNET2372d14a3d++){if(
    48. 

  48. DATARMNETe823dcf978->DATARMNETb4180393e4[DATARMNET2372d14a3d].q.qlen>
    49. 

  49. DATARMNETe823dcf978->DATARMNETb4180393e4[DATARMNET2372d14a3d].
    50. 

  50. DATARMNET04fa439380){DATARMNET713b43476b=DATARMNETe823dcf978->
    51. 

  51. DATARMNETb4180393e4[DATARMNET2372d14a3d].q.qlen-DATARMNETe823dcf978->
    52. 

  52. DATARMNETb4180393e4[DATARMNET2372d14a3d].DATARMNET04fa439380;if(
    53. 

  53. DATARMNET713b43476b>=DATARMNETdc41089b89){DATARMNETdc41089b89=
    54. 

  54. DATARMNET713b43476b;DATARMNET70fa801d65=DATARMNET2372d14a3d;}}if(
    55. 

  55. DATARMNETe823dcf978->DATARMNETb4180393e4[DATARMNET2372d14a3d].q.qlen>
    56. 

  56. DATARMNETe823dcf978->DATARMNETb4180393e4[DATARMNET2372d14a3d].
    57. 

  57. DATARMNETb93c9b44d9)DATARMNET3c5d4329d8=DATARMNET2372d14a3d;}if(
    58. 

  58. DATARMNET70fa801d65<DATARMNETe632b2e0b0)return DATARMNET70fa801d65;return 
    59. 

  59. DATARMNET3c5d4329d8;}static inline void DATARMNET8c1d8c9f65(struct 
    60. 

  60. DATARMNET74e95d25df*DATARMNETe823dcf978,int DATARMNET2372d14a3d){
    61. 

  61. DATARMNETe823dcf978->DATARMNETb4180393e4[DATARMNET2372d14a3d].
    62. 

  62. DATARMNET1de7b3d891=DATARMNET9dd1382d86[DATARMNET2372d14a3d];DATARMNETe823dcf978
    63. 

  63. ->DATARMNETb4180393e4[DATARMNET2372d14a3d].DATARMNETf9afebb887=
    64. 

  64. DATARMNET91bbdde74c[DATARMNET2372d14a3d];}static inline void DATARMNET60cff0042c
    65. 

  65. (struct DATARMNET74e95d25df*DATARMNETe823dcf978,int DATARMNET2372d14a3d,unsigned
    66. 

  66.  int DATARMNETf9d25d31ff){DATARMNETe823dcf978->DATARMNETb4180393e4[
    67. 

  67. DATARMNET2372d14a3d].DATARMNETb93c9b44d9=DATARMNETf9d25d31ff/(0xd27+224-0xdfd)*
    68. 

  68. DATARMNET14ed95ab67[DATARMNET2372d14a3d];DATARMNETe823dcf978->
    69. 

  69. DATARMNETb4180393e4[DATARMNET2372d14a3d].DATARMNET04fa439380=DATARMNETe823dcf978
    70. 

  70. ->DATARMNETb4180393e4[DATARMNET2372d14a3d].DATARMNETb93c9b44d9<<
    71. 

  71. (0xd26+209-0xdf6);}static int DATARMNET3a797cc4e9(struct sk_buff*
    72. 

  72. DATARMNET543491eb0f,struct Qdisc*DATARMNET9b0193c8c4,struct sk_buff**
    73. 

  73. DATARMNET6af05df5b3){struct DATARMNET74e95d25df*DATARMNETe823dcf978=qdisc_priv(
    74. 

  74. DATARMNET9b0193c8c4);unsigned int DATARMNET5affe290b8=qdisc_pkt_len(
    75. 

  75. DATARMNET543491eb0f);int DATARMNETba251b7c9f;int DATARMNETa9b7aedc43;struct 
    76. 

  76. sk_buff*DATARMNET7495e55ca2;DATARMNETba251b7c9f=DATARMNET93bdeed8cb[
    77. 

  77. DATARMNET543491eb0f->priority&TC_PRIO_MAX];if(unlikely(DATARMNET9b0193c8c4->q.
    78. 

  78. qlen>=qdisc_dev(DATARMNET9b0193c8c4)->tx_queue_len)){DATARMNETa9b7aedc43=
    79. 

  79. DATARMNETdaae0b9ea8(DATARMNETe823dcf978);if(DATARMNETa9b7aedc43<
    80. 

  80. DATARMNETe632b2e0b0&&DATARMNETa9b7aedc43!=DATARMNETba251b7c9f){
    81. 

  81. DATARMNET7495e55ca2=__qdisc_dequeue_head(&DATARMNETe823dcf978->
    82. 

  82. DATARMNETb4180393e4[DATARMNETa9b7aedc43].q);if(likely(DATARMNET7495e55ca2)){
    83. 

  83. DATARMNET9b0193c8c4->qstats.backlog-=qdisc_pkt_len(DATARMNET7495e55ca2);
    84. 

  84. DATARMNET9b0193c8c4->q.qlen--;qdisc_drop(DATARMNET7495e55ca2,DATARMNET9b0193c8c4
    85. 

  85. ,DATARMNET6af05df5b3);}}else{return qdisc_drop(DATARMNET543491eb0f,
    86. 

  86. DATARMNET9b0193c8c4,DATARMNET6af05df5b3);}}__qdisc_enqueue_tail(
    87. 

  87. DATARMNET543491eb0f,&DATARMNETe823dcf978->DATARMNETb4180393e4[
    88. 

  88. DATARMNETba251b7c9f].q);qdisc_update_stats_at_enqueue(DATARMNET9b0193c8c4,
    89. 

  89. DATARMNET5affe290b8);return NET_XMIT_SUCCESS;}static u8 DATARMNETf9ac3daa83(
    90. 

  90. struct DATARMNET74e95d25df*DATARMNETe823dcf978){int DATARMNET2372d14a3d,
    91. 

  91. DATARMNET70fa801d65=DATARMNETe632b2e0b0;for(DATARMNET2372d14a3d=
    92. 

  92. (0xd2d+202-0xdf7);DATARMNET2372d14a3d<DATARMNETe632b2e0b0;DATARMNET2372d14a3d++)
    93. 

  93. {if(!DATARMNETe823dcf978->DATARMNETb4180393e4[DATARMNET2372d14a3d].q.qlen)
    94. 

  94. continue;if(DATARMNETe823dcf978->DATARMNETb4180393e4[DATARMNET2372d14a3d].
    95. 

  95. DATARMNET1de7b3d891<=(0xd2d+202-0xdf7)||DATARMNETe823dcf978->DATARMNETb4180393e4
    96. 

  96. [DATARMNET2372d14a3d].DATARMNETf9afebb887<=(0xd2d+202-0xdf7)){if(
    97. 

  97. DATARMNET2372d14a3d<DATARMNET70fa801d65)DATARMNET70fa801d65=DATARMNET2372d14a3d;
    98. 

  98. continue;}return DATARMNET2372d14a3d;}for(DATARMNET2372d14a3d=(0xd2d+202-0xdf7);
    99. 

  99. DATARMNET2372d14a3d<DATARMNETe632b2e0b0;DATARMNET2372d14a3d++)
    100. 

  100. DATARMNET8c1d8c9f65(DATARMNETe823dcf978,DATARMNET2372d14a3d);return 
    101. 

  101. DATARMNET70fa801d65;}static struct sk_buff*DATARMNET11bbc6360d(struct Qdisc*
    102. 

  102. DATARMNET9b0193c8c4){struct DATARMNET74e95d25df*DATARMNETe823dcf978=qdisc_priv(
    103. 

  103. DATARMNET9b0193c8c4);struct sk_buff*DATARMNET543491eb0f=NULL;u8 
    104. 

  104. DATARMNET2372d14a3d;DATARMNET2372d14a3d=DATARMNETf9ac3daa83(DATARMNETe823dcf978)
    105. 

  105. ;if(DATARMNET2372d14a3d<DATARMNETe632b2e0b0){DATARMNET543491eb0f=
    106. 

  106. __qdisc_dequeue_head(&DATARMNETe823dcf978->DATARMNETb4180393e4[
    107. 

  107. DATARMNET2372d14a3d].q);if(likely(DATARMNET543491eb0f)){DATARMNETe823dcf978->
    108. 

  108. DATARMNETb4180393e4[DATARMNET2372d14a3d].DATARMNET1de7b3d891--;
    109. 

  109. DATARMNETe823dcf978->DATARMNETb4180393e4[DATARMNET2372d14a3d].
    110. 

  110. DATARMNETf9afebb887-=qdisc_pkt_len(DATARMNET543491eb0f);
    111. 

  111. qdisc_update_stats_at_dequeue(DATARMNET9b0193c8c4,DATARMNET543491eb0f);}}return 
    112. 

  112. DATARMNET543491eb0f;}static struct sk_buff*DATARMNET5842e6aac7(struct Qdisc*
    113. 

  113. DATARMNET9b0193c8c4){struct DATARMNET74e95d25df*DATARMNETe823dcf978=qdisc_priv(
    114. 

  114. DATARMNET9b0193c8c4);struct sk_buff*DATARMNET543491eb0f=NULL;u8 
    115. 

  115. DATARMNET2372d14a3d;DATARMNET2372d14a3d=DATARMNETf9ac3daa83(DATARMNETe823dcf978)
    116. 

  116. ;if(DATARMNET2372d14a3d<DATARMNETe632b2e0b0)DATARMNET543491eb0f=
    117. 

  117. DATARMNETe823dcf978->DATARMNETb4180393e4[DATARMNET2372d14a3d].q.head;return 
    118. 

  118. DATARMNET543491eb0f;}static int DATARMNET757a7de682(struct Qdisc*
    119. 

  119. DATARMNET9b0193c8c4,struct nlattr*DATARMNET8bdeb8bf5c,struct netlink_ext_ack*
    120. 

  120. DATARMNET79a1f177ed){struct DATARMNET74e95d25df*DATARMNETe823dcf978=qdisc_priv(
    121. 

  121. DATARMNET9b0193c8c4);int DATARMNET2372d14a3d;for(DATARMNET2372d14a3d=
    122. 

  122. (0xd2d+202-0xdf7);DATARMNET2372d14a3d<DATARMNETe632b2e0b0;DATARMNET2372d14a3d++)
    123. 

  123. {DATARMNET8c1d8c9f65(DATARMNETe823dcf978,DATARMNET2372d14a3d);
    124. 

  124. DATARMNET60cff0042c(DATARMNETe823dcf978,DATARMNET2372d14a3d,qdisc_dev(
    125. 

  125. DATARMNET9b0193c8c4)->tx_queue_len);}DATARMNET9b0193c8c4->flags|=
    126. 

  126. TCQ_F_CAN_BYPASS;return(0xd2d+202-0xdf7);}static void DATARMNET9593ab9587(struct
    127. 

  127.  Qdisc*DATARMNET9b0193c8c4){struct DATARMNET74e95d25df*DATARMNETe823dcf978=
    128. 

  128. qdisc_priv(DATARMNET9b0193c8c4);int DATARMNET2372d14a3d;for(DATARMNET2372d14a3d=
    129. 

  129. (0xd2d+202-0xdf7);DATARMNET2372d14a3d<DATARMNETe632b2e0b0;DATARMNET2372d14a3d++)
    130. 

  130. {kfree_skb_list(DATARMNETe823dcf978->DATARMNETb4180393e4[DATARMNET2372d14a3d].q.
    131. 

  131. head);DATARMNETe823dcf978->DATARMNETb4180393e4[DATARMNET2372d14a3d].q.head=NULL;
    132. 

  132. DATARMNETe823dcf978->DATARMNETb4180393e4[DATARMNET2372d14a3d].q.tail=NULL;
    133. 

  133. DATARMNETe823dcf978->DATARMNETb4180393e4[DATARMNET2372d14a3d].q.qlen=
    134. 

  134. (0xd2d+202-0xdf7);DATARMNET8c1d8c9f65(DATARMNETe823dcf978,DATARMNET2372d14a3d);
    135. 

  135. DATARMNET60cff0042c(DATARMNETe823dcf978,DATARMNET2372d14a3d,qdisc_dev(
    136. 

  136. DATARMNET9b0193c8c4)->tx_queue_len);}}static int DATARMNET6647342968(struct 
    137. 

  137. Qdisc*DATARMNET9b0193c8c4,unsigned int qlen){struct DATARMNET74e95d25df*
    138. 

  138. DATARMNETe823dcf978=qdisc_priv(DATARMNET9b0193c8c4);int DATARMNET2372d14a3d;for(
    139. 

  139. DATARMNET2372d14a3d=(0xd2d+202-0xdf7);DATARMNET2372d14a3d<DATARMNETe632b2e0b0;
    140. 

  140. DATARMNET2372d14a3d++)DATARMNET60cff0042c(DATARMNETe823dcf978,
    141. 

  141. DATARMNET2372d14a3d,qlen);return(0xd2d+202-0xdf7);}static struct Qdisc_ops 
    142. 

  142. DATARMNET9afaec21de __read_mostly={.id="\x72\x6d\x6e\x65\x74\x5f\x73\x63\x68",.
    143. 

  143. priv_size=sizeof(struct DATARMNET74e95d25df),.enqueue=DATARMNET3a797cc4e9,.
    144. 

  144. dequeue=DATARMNET11bbc6360d,.peek=DATARMNET5842e6aac7,.init=DATARMNET757a7de682,
    145. 

  145. .reset=DATARMNET9593ab9587,.change_tx_queue_len=DATARMNET6647342968,.owner=
    146. 

  146. THIS_MODULE,};static int __init DATARMNETe97da0a844(void){pr_info(
    147. 

  147. "\x73\x63\x68\x3a\x20\x69\x6e\x69\x74\x20\x28\x25\x73\x29" "\n",
    148. 

  148. DATARMNETf1bb41174a);return register_qdisc(&DATARMNET9afaec21de);}static void 
    149. 

  149. __exit DATARMNET1dc9099e88(void){unregister_qdisc(&DATARMNET9afaec21de);}
    150. 

  150. MODULE_LICENSE("\x47\x50\x4c\x20\x76\x32");module_init(DATARMNETe97da0a844);
    151. 

  151. module_exit(DATARMNET1dc9099e88);
    152.