diff --git a/libc/kernel/common/linux/if_pppol2tp.h b/libc/kernel/common/linux/if_pppol2tp.h
new file mode 100644
index 0000000..6d0f6af
--- /dev/null
+++ b/libc/kernel/common/linux/if_pppol2tp.h
@@ -0,0 +1,56 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   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_IF_PPPOL2TP_H
+#define __LINUX_IF_PPPOL2TP_H
+#include <linux/types.h>
+struct pppol2tp_addr {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ __kernel_pid_t pid;
+ int fd;
+ struct sockaddr_in addr;
+ __u16 s_tunnel, s_session;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ __u16 d_tunnel, d_session;
+};
+struct pppol2tpv3_addr {
+ pid_t pid;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ int fd;
+ struct sockaddr_in addr;
+ __u32 s_tunnel, s_session;
+ __u32 d_tunnel, d_session;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
+enum {
+ PPPOL2TP_SO_DEBUG = 1,
+ PPPOL2TP_SO_RECVSEQ = 2,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ PPPOL2TP_SO_SENDSEQ = 3,
+ PPPOL2TP_SO_LNSMODE = 4,
+ PPPOL2TP_SO_REORDERTO = 5,
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+enum {
+ PPPOL2TP_MSG_DEBUG = (1 << 0),
+ PPPOL2TP_MSG_CONTROL = (1 << 1),
+ PPPOL2TP_MSG_SEQ = (1 << 2),
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ PPPOL2TP_MSG_DATA = (1 << 3),
+};
+#endif
diff --git a/libc/kernel/common/linux/if_pppolac.h b/libc/kernel/common/linux/if_pppolac.h
index bf6eba0..ad212e7 100644
--- a/libc/kernel/common/linux/if_pppolac.h
+++ b/libc/kernel/common/linux/if_pppolac.h
@@ -7,23 +7,28 @@
  ***   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_IF_PPPOLAC_H
 #define __LINUX_IF_PPPOLAC_H
-
 #include <linux/socket.h>
 #include <linux/types.h>
-
-#define PX_PROTO_OLAC 2
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct sockaddr_pppolac {
  sa_family_t sa_family;
  unsigned int sa_protocol;
  int udp_socket;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  struct __attribute__((packed)) {
  __u16 tunnel, session;
  } local, remote;
 } __attribute__((packed));
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #endif
diff --git a/libc/kernel/common/linux/if_pppopns.h b/libc/kernel/common/linux/if_pppopns.h
index ac75210..0eb7670 100644
--- a/libc/kernel/common/linux/if_pppopns.h
+++ b/libc/kernel/common/linux/if_pppopns.h
@@ -7,22 +7,27 @@
  ***   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_IF_PPPOPNS_H
 #define __LINUX_IF_PPPOPNS_H
-
 #include <linux/socket.h>
 #include <linux/types.h>
-
-#define PX_PROTO_OPNS 3
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct sockaddr_pppopns {
  sa_family_t sa_family;
  unsigned int sa_protocol;
  int tcp_socket;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  __u16 local;
  __u16 remote;
 } __attribute__((packed));
-
 #endif
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
diff --git a/libc/kernel/common/linux/if_pppox.h b/libc/kernel/common/linux/if_pppox.h
new file mode 100644
index 0000000..47ed22e
--- /dev/null
+++ b/libc/kernel/common/linux/if_pppox.h
@@ -0,0 +1,123 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   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_IF_PPPOX_H
+#define __LINUX_IF_PPPOX_H
+#include <linux/types.h>
+#include <asm/byteorder.h>
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#include <linux/if_pppol2tp.h>
+#include <linux/if_pppolac.h>
+#include <linux/if_pppopns.h>
+#ifndef AF_PPPOX
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define AF_PPPOX 24
+#define PF_PPPOX AF_PPPOX
+#endif
+typedef __be16 sid_t;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct pppoe_addr {
+ sid_t sid;
+ unsigned char remote[ETH_ALEN];
+ char dev[IFNAMSIZ];
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
+struct pptp_addr {
+ __be16 call_id;
+ struct in_addr sin_addr;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
+#define PX_PROTO_OE 0  
+#define PX_PROTO_OL2TP 1  
+#define PX_PROTO_PPTP 2
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PX_PROTO_OLAC 3
+#define PX_PROTO_OPNS 4
+#define PX_MAX_PROTO 5
+struct sockaddr_pppox {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ sa_family_t sa_family;
+ unsigned int sa_protocol;
+ union {
+ struct pppoe_addr pppoe;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ struct pptp_addr pptp;
+ } sa_addr;
+} __attribute__((packed));
+struct sockaddr_pppol2tp {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ sa_family_t sa_family;
+ unsigned int sa_protocol;
+ struct pppol2tp_addr pppol2tp;
+} __attribute__((packed));
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct sockaddr_pppol2tpv3 {
+ sa_family_t sa_family;
+ unsigned int sa_protocol;
+ struct pppol2tpv3_addr pppol2tp;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+} __attribute__((packed));
+#define PPPOEIOCSFWD _IOW(0xB1 ,0, size_t)
+#define PPPOEIOCDFWD _IO(0xB1 ,1)
+#define PADI_CODE 0x09
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PADO_CODE 0x07
+#define PADR_CODE 0x19
+#define PADS_CODE 0x65
+#define PADT_CODE 0xa7
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct pppoe_tag {
+ __be16 tag_type;
+ __be16 tag_len;
+ char tag_data[0];
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+} __attribute__ ((packed));
+#define PTT_EOL __cpu_to_be16(0x0000)
+#define PTT_SRV_NAME __cpu_to_be16(0x0101)
+#define PTT_AC_NAME __cpu_to_be16(0x0102)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PTT_HOST_UNIQ __cpu_to_be16(0x0103)
+#define PTT_AC_COOKIE __cpu_to_be16(0x0104)
+#define PTT_VENDOR __cpu_to_be16(0x0105)
+#define PTT_RELAY_SID __cpu_to_be16(0x0110)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PTT_SRV_ERR __cpu_to_be16(0x0201)
+#define PTT_SYS_ERR __cpu_to_be16(0x0202)
+#define PTT_GEN_ERR __cpu_to_be16(0x0203)
+struct pppoe_hdr {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#ifdef __LITTLE_ENDIAN_BITFIELD
+ __u8 ver : 4;
+ __u8 type : 4;
+#elif defined(__BIG_ENDIAN_BITFIELD)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ __u8 type : 4;
+ __u8 ver : 4;
+#else
+#error "Please fix <asm/byteorder.h>"
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#endif
+ __u8 code;
+ __be16 sid;
+ __be16 length;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ struct pppoe_tag tag[0];
+} __attribute__((packed));
+#define PPPOE_SES_HLEN 8
+#endif
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */