From 7c9a98ea702d76cbb026c467c56eaa5fbdee6d17 Mon Sep 17 00:00:00 2001
From: dowright <dowright@nationofnobodies.com>
Date: Mon, 23 Aug 2021 19:27:05 -0700
Subject: [PATCH] work on new packet
---
new_packet.pxd | 113 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 113 insertions(+)
diff --git a/new_packet.pxd b/new_packet.pxd
index 9085941..abea666 100644
--- a/new_packet.pxd
+++ b/new_packet.pxd
@@ -54,6 +54,119 @@ cdef enum:
IPPROTO_TCP = 6 # Transmission Control Protocol.
IPPROTO_UDP = 17 # User Datagram Protocol.
+cdef extern from "Python.h":
+ object PyBytes_FromStringAndSize(char *s, Py_ssize_t len)
+ object PyString_FromStringAndSize(char *s, Py_ssize_t len)
+
+cdef extern from "sys/time.h":
+ ctypedef long time_t
+ struct timeval:
+ time_t tv_sec
+ time_t tv_usec
+ struct timezone:
+ pass
+
+cdef extern from "netinet/in.h":
+ u_int32_t ntohl (u_int32_t __netlong) nogil
+ u_int16_t ntohs (u_int16_t __netshort) nogil
+ u_int32_t htonl (u_int32_t __hostlong) nogil
+ u_int16_t htons (u_int16_t __hostshort) nogil
+
+cdef extern from "libnfnetlink/linux_nfnetlink.h":
+ struct nfgenmsg:
+ u_int8_t nfgen_family
+ u_int8_t version
+ u_int16_t res_id
+
+cdef extern from "libnfnetlink/libnfnetlink.h":
+ struct nfnl_handle:
+ pass
+ unsigned int nfnl_rcvbufsiz(nfnl_handle *h, unsigned int size)
+
+cdef extern from "libnetfilter_queue/linux_nfnetlink_queue.h":
+ enum nfqnl_config_mode:
+ NFQNL_COPY_NONE
+ NFQNL_COPY_META
+ NFQNL_COPY_PACKET
+ struct nfqnl_msg_packet_hdr:
+ u_int32_t packet_id
+ u_int16_t hw_protocol
+ u_int8_t hook
+
+cdef extern from "libnetfilter_queue/libnetfilter_queue.h":
+ struct nfq_handle:
+ pass
+ struct nfq_q_handle:
+ pass
+ struct nfq_data:
+ pass
+ struct nfqnl_msg_packet_hw:
+ u_int8_t hw_addr[8]
+
+ nfq_handle *nfq_open()
+ int nfq_close(nfq_handle *h)
+
+ int nfq_bind_pf(nfq_handle *h, u_int16_t pf)
+ int nfq_unbind_pf(nfq_handle *h, u_int16_t pf)
+ ctypedef int *nfq_callback(nfq_q_handle *gh, nfgenmsg *nfmsg,
+ nfq_data *nfad, void *data)
+ nfq_q_handle *nfq_create_queue(nfq_handle *h,
+ u_int16_t num,
+ nfq_callback *cb,
+ void *data)
+ int nfq_destroy_queue(nfq_q_handle *qh)
+
+ int nfq_handle_packet(nfq_handle *h, char *buf, int len)
+
+ int nfq_set_mode(nfq_q_handle *qh,
+ u_int8_t mode, unsigned int len)
+
+ q_set_queue_maxlen(nfq_q_handle *qh,
+ u_int32_t queuelen)
+
+ int nfq_set_verdict(nfq_q_handle *qh,
+ u_int32_t id,
+ u_int32_t verdict,
+ u_int32_t data_len,
+ unsigned char *buf) nogil
+
+ int nfq_set_verdict2(nfq_q_handle *qh,
+ u_int32_t id,
+ u_int32_t verdict,
+ u_int32_t mark,
+ u_int32_t datalen,
+ unsigned char *buf) nogil
+ int nfq_set_queue_maxlen(nfq_q_handle *qh, u_int32_t queuelen)
+
+ int nfq_fd(nfq_handle *h)
+ nfqnl_msg_packet_hdr *nfq_get_msg_packet_hdr(nfq_data *nfad)
+ int nfq_get_payload(nfq_data *nfad, unsigned char **data)
+ int nfq_get_timestamp(nfq_data *nfad, timeval *tv)
+ nfqnl_msg_packet_hw *nfq_get_packet_hw(nfq_data *nfad)
+ int nfq_get_nfmark (nfq_data *nfad)
+ u_int8_t nfq_get_indev(nfq_data *nfad)
+ u_int8_t nfq_get_outdev(nfq_data *nfad)
+ nfnl_handle *nfq_nfnlh(nfq_handle *h)
+
+# Dummy defines from linux/socket.h:
+cdef enum: # Protocol families, same as address families.
+ PF_INET = 2
+ PF_INET6 = 10
+
+cdef extern from "sys/socket.h":
+ ssize_t recv(int __fd, void *__buf, size_t __n, int __flags) nogil
+ int MSG_DONTWAIT
+
+# Dummy defines from linux/netfilter.h
+cdef enum:
+ NF_DROP
+ NF_ACCEPT
+ NF_STOLEN
+ NF_QUEUE
+ NF_REPEAT
+ NF_STOP
+ NF_MAX_VERDICT = NF_STOP
+
cdef class CPacket:
cdef nfq_q_handle *_qh