diff --git a/libc/kernel/common/linux/pfkeyv2.h b/libc/kernel/common/linux/pfkeyv2.h
index 3ac9488..68e43ce 100644
--- a/libc/kernel/common/linux/pfkeyv2.h
+++ b/libc/kernel/common/linux/pfkeyv2.h
@@ -7,300 +7,338 @@
  ***   structures, and macros generated from the original header, and thus,
  ***   contains no copyrightable information.
  ***
+ ***   To edit the content of this header, modify the corresponding
+ ***   source file (e.g. under external/kernel-headers/original/) then
+ ***   run bionic/libc/kernel/tools/update_all.py
+ ***
+ ***   Any manual change here will be lost the next time this script will
+ ***   be run. You've been warned!
+ ***
  ****************************************************************************
  ****************************************************************************/
 #ifndef _LINUX_PFKEY2_H
 #define _LINUX_PFKEY2_H
-
 #include <linux/types.h>
-
 #define PF_KEY_V2 2
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define PFKEYV2_REVISION 199806L
-
 struct sadb_msg {
  uint8_t sadb_msg_version;
  uint8_t sadb_msg_type;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint8_t sadb_msg_errno;
  uint8_t sadb_msg_satype;
  uint16_t sadb_msg_len;
  uint16_t sadb_msg_reserved;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint32_t sadb_msg_seq;
  uint32_t sadb_msg_pid;
 } __attribute__((packed));
-
 struct sadb_ext {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint16_t sadb_ext_len;
  uint16_t sadb_ext_type;
 } __attribute__((packed));
-
 struct sadb_sa {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint16_t sadb_sa_len;
  uint16_t sadb_sa_exttype;
  uint32_t sadb_sa_spi;
  uint8_t sadb_sa_replay;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint8_t sadb_sa_state;
  uint8_t sadb_sa_auth;
  uint8_t sadb_sa_encrypt;
  uint32_t sadb_sa_flags;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 } __attribute__((packed));
-
 struct sadb_lifetime {
  uint16_t sadb_lifetime_len;
  uint16_t sadb_lifetime_exttype;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint32_t sadb_lifetime_allocations;
  uint64_t sadb_lifetime_bytes;
  uint64_t sadb_lifetime_addtime;
  uint64_t sadb_lifetime_usetime;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 } __attribute__((packed));
-
 struct sadb_address {
  uint16_t sadb_address_len;
  uint16_t sadb_address_exttype;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint8_t sadb_address_proto;
  uint8_t sadb_address_prefixlen;
  uint16_t sadb_address_reserved;
 } __attribute__((packed));
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct sadb_key {
  uint16_t sadb_key_len;
  uint16_t sadb_key_exttype;
  uint16_t sadb_key_bits;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint16_t sadb_key_reserved;
 } __attribute__((packed));
-
 struct sadb_ident {
  uint16_t sadb_ident_len;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint16_t sadb_ident_exttype;
  uint16_t sadb_ident_type;
  uint16_t sadb_ident_reserved;
  uint64_t sadb_ident_id;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 } __attribute__((packed));
-
 struct sadb_sens {
  uint16_t sadb_sens_len;
  uint16_t sadb_sens_exttype;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint32_t sadb_sens_dpd;
  uint8_t sadb_sens_sens_level;
  uint8_t sadb_sens_sens_len;
  uint8_t sadb_sens_integ_level;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint8_t sadb_sens_integ_len;
  uint32_t sadb_sens_reserved;
 } __attribute__((packed));
-
 struct sadb_prop {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint16_t sadb_prop_len;
  uint16_t sadb_prop_exttype;
  uint8_t sadb_prop_replay;
  uint8_t sadb_prop_reserved[3];
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 } __attribute__((packed));
-
 struct sadb_comb {
  uint8_t sadb_comb_auth;
  uint8_t sadb_comb_encrypt;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint16_t sadb_comb_flags;
  uint16_t sadb_comb_auth_minbits;
  uint16_t sadb_comb_auth_maxbits;
  uint16_t sadb_comb_encrypt_minbits;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint16_t sadb_comb_encrypt_maxbits;
  uint32_t sadb_comb_reserved;
  uint32_t sadb_comb_soft_allocations;
  uint32_t sadb_comb_hard_allocations;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint64_t sadb_comb_soft_bytes;
  uint64_t sadb_comb_hard_bytes;
  uint64_t sadb_comb_soft_addtime;
  uint64_t sadb_comb_hard_addtime;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint64_t sadb_comb_soft_usetime;
  uint64_t sadb_comb_hard_usetime;
 } __attribute__((packed));
-
 struct sadb_supported {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint16_t sadb_supported_len;
  uint16_t sadb_supported_exttype;
  uint32_t sadb_supported_reserved;
 } __attribute__((packed));
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct sadb_alg {
  uint8_t sadb_alg_id;
  uint8_t sadb_alg_ivlen;
  uint16_t sadb_alg_minbits;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint16_t sadb_alg_maxbits;
  uint16_t sadb_alg_reserved;
 } __attribute__((packed));
-
 struct sadb_spirange {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint16_t sadb_spirange_len;
  uint16_t sadb_spirange_exttype;
  uint32_t sadb_spirange_min;
  uint32_t sadb_spirange_max;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint32_t sadb_spirange_reserved;
 } __attribute__((packed));
-
 struct sadb_x_kmprivate {
  uint16_t sadb_x_kmprivate_len;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint16_t sadb_x_kmprivate_exttype;
  uint32_t sadb_x_kmprivate_reserved;
 } __attribute__((packed));
-
 struct sadb_x_sa2 {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint16_t sadb_x_sa2_len;
  uint16_t sadb_x_sa2_exttype;
  uint8_t sadb_x_sa2_mode;
  uint8_t sadb_x_sa2_reserved1;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint16_t sadb_x_sa2_reserved2;
  uint32_t sadb_x_sa2_sequence;
  uint32_t sadb_x_sa2_reqid;
 } __attribute__((packed));
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct sadb_x_policy {
  uint16_t sadb_x_policy_len;
  uint16_t sadb_x_policy_exttype;
  uint16_t sadb_x_policy_type;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint8_t sadb_x_policy_dir;
  uint8_t sadb_x_policy_reserved;
  uint32_t sadb_x_policy_id;
  uint32_t sadb_x_policy_priority;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 } __attribute__((packed));
-
 struct sadb_x_ipsecrequest {
  uint16_t sadb_x_ipsecrequest_len;
  uint16_t sadb_x_ipsecrequest_proto;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint8_t sadb_x_ipsecrequest_mode;
  uint8_t sadb_x_ipsecrequest_level;
  uint16_t sadb_x_ipsecrequest_reserved1;
  uint32_t sadb_x_ipsecrequest_reqid;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint32_t sadb_x_ipsecrequest_reserved2;
 } __attribute__((packed));
-
 struct sadb_x_nat_t_type {
  uint16_t sadb_x_nat_t_type_len;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint16_t sadb_x_nat_t_type_exttype;
  uint8_t sadb_x_nat_t_type_type;
  uint8_t sadb_x_nat_t_type_reserved[3];
 } __attribute__((packed));
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct sadb_x_nat_t_port {
  uint16_t sadb_x_nat_t_port_len;
  uint16_t sadb_x_nat_t_port_exttype;
  uint16_t sadb_x_nat_t_port_port;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint16_t sadb_x_nat_t_port_reserved;
 } __attribute__((packed));
-
 struct sadb_x_sec_ctx {
  uint16_t sadb_x_sec_len;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  uint16_t sadb_x_sec_exttype;
  uint8_t sadb_x_ctx_alg;
  uint8_t sadb_x_ctx_doi;
  uint16_t sadb_x_ctx_len;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 } __attribute__((packed));
-
 #define SADB_RESERVED 0
 #define SADB_GETSPI 1
 #define SADB_UPDATE 2
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SADB_ADD 3
 #define SADB_DELETE 4
 #define SADB_GET 5
 #define SADB_ACQUIRE 6
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SADB_REGISTER 7
 #define SADB_EXPIRE 8
 #define SADB_FLUSH 9
 #define SADB_DUMP 10
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SADB_X_PROMISC 11
 #define SADB_X_PCHANGE 12
 #define SADB_X_SPDUPDATE 13
 #define SADB_X_SPDADD 14
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SADB_X_SPDDELETE 15
 #define SADB_X_SPDGET 16
 #define SADB_X_SPDACQUIRE 17
 #define SADB_X_SPDDUMP 18
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SADB_X_SPDFLUSH 19
 #define SADB_X_SPDSETIDX 20
 #define SADB_X_SPDEXPIRE 21
 #define SADB_X_SPDDELETE2 22
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SADB_X_NAT_T_NEW_MAPPING 23
 #define SADB_MAX 23
-
 #define SADB_SAFLAGS_PFS 1
 #define SADB_SAFLAGS_NOPMTUDISC 0x20000000
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SADB_SAFLAGS_DECAP_DSCP 0x40000000
 #define SADB_SAFLAGS_NOECN 0x80000000
-
 #define SADB_SASTATE_LARVAL 0
 #define SADB_SASTATE_MATURE 1
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SADB_SASTATE_DYING 2
 #define SADB_SASTATE_DEAD 3
 #define SADB_SASTATE_MAX 3
-
 #define SADB_SATYPE_UNSPEC 0
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SADB_SATYPE_AH 2
 #define SADB_SATYPE_ESP 3
 #define SADB_SATYPE_RSVP 5
 #define SADB_SATYPE_OSPFV2 6
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SADB_SATYPE_RIPV2 7
 #define SADB_SATYPE_MIP 8
 #define SADB_X_SATYPE_IPCOMP 9
 #define SADB_SATYPE_MAX 9
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SADB_AALG_NONE 0
 #define SADB_AALG_MD5HMAC 2
 #define SADB_AALG_SHA1HMAC 3
 #define SADB_X_AALG_SHA2_256HMAC 5
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SADB_X_AALG_SHA2_384HMAC 6
 #define SADB_X_AALG_SHA2_512HMAC 7
 #define SADB_X_AALG_RIPEMD160HMAC 8
 #define SADB_X_AALG_NULL 251  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SADB_AALG_MAX 251
-
 #define SADB_EALG_NONE 0
 #define SADB_EALG_DESCBC 2
 #define SADB_EALG_3DESCBC 3
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SADB_X_EALG_CASTCBC 6
 #define SADB_X_EALG_BLOWFISHCBC 7
 #define SADB_EALG_NULL 11
 #define SADB_X_EALG_AESCBC 12
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SADB_EALG_MAX 253  
-
 #define SADB_X_EALG_SERPENTCBC 252  
 #define SADB_X_EALG_TWOFISHCBC 253  
-
 #define SADB_X_CALG_NONE 0
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SADB_X_CALG_OUI 1
 #define SADB_X_CALG_DEFLATE 2
 #define SADB_X_CALG_LZS 3
 #define SADB_X_CALG_LZJH 4
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SADB_X_CALG_MAX 4
-
 #define SADB_EXT_RESERVED 0
 #define SADB_EXT_SA 1
 #define SADB_EXT_LIFETIME_CURRENT 2
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SADB_EXT_LIFETIME_HARD 3
 #define SADB_EXT_LIFETIME_SOFT 4
 #define SADB_EXT_ADDRESS_SRC 5
 #define SADB_EXT_ADDRESS_DST 6
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SADB_EXT_ADDRESS_PROXY 7
 #define SADB_EXT_KEY_AUTH 8
 #define SADB_EXT_KEY_ENCRYPT 9
 #define SADB_EXT_IDENTITY_SRC 10
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SADB_EXT_IDENTITY_DST 11
 #define SADB_EXT_SENSITIVITY 12
 #define SADB_EXT_PROPOSAL 13
 #define SADB_EXT_SUPPORTED_AUTH 14
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SADB_EXT_SUPPORTED_ENCRYPT 15
 #define SADB_EXT_SPIRANGE 16
 #define SADB_X_EXT_KMPRIVATE 17
 #define SADB_X_EXT_POLICY 18
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SADB_X_EXT_SA2 19
-
 #define SADB_X_EXT_NAT_T_TYPE 20
 #define SADB_X_EXT_NAT_T_SPORT 21
 #define SADB_X_EXT_NAT_T_DPORT 22
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SADB_X_EXT_NAT_T_OA 23
 #define SADB_X_EXT_SEC_CTX 24
 #define SADB_EXT_MAX 24
-
 #define SADB_IDENTTYPE_RESERVED 0
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SADB_IDENTTYPE_PREFIX 1
 #define SADB_IDENTTYPE_FQDN 2
 #define SADB_IDENTTYPE_USERFQDN 3
 #define SADB_IDENTTYPE_MAX 3
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #endif