Created
February 24, 2016 01:40
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| from pyroute2.netlink import nla | |
| from pyroute2.netlink import NLA_F_NESTED | |
| from pyroute2.netlink import NLA_F_NET_BYTEORDER | |
| from pyroute2.netlink.nfnetlink import nfgen_msg | |
| NFT_TABLE_MAXNAMELEN = 32 | |
| NFT_CHAIN_MAXNAMELEN = 32 | |
| NFT_USERDATA_MAXLEN = 256 | |
| NFT_MSG_NEWTABLE = 1 | |
| NFT_MSG_GETTABLE = 2 | |
| NFT_MSG_DELTABLE = 3 | |
| NFT_MSG_NEWCHAIN = 4 | |
| NFT_MSG_GETCHAIN = 5 | |
| NFT_MSG_DELCHAIN = 6 | |
| NFT_MSG_NEWRULE = 7 | |
| NFT_MSG_GETRULE = 8 | |
| NFT_MSG_DELRULE = 9 | |
| NFT_MSG_NEWSET = 10 | |
| NFT_MSG_GETSET = 11 | |
| NFT_MSG_DELSET = 12 | |
| NFT_MSG_NEWSETELEM = 13 | |
| NFT_MSG_GETSETELEM = 14 | |
| NFT_MSG_DELSETELEM = 15 | |
| NFT_MSG_NEWGEN = 16 | |
| NFT_MSG_GETGEN = 17 | |
| NFT_MSG_MAX = 18 | |
| ''' | |
| * The possible flags in the netlink header are: | |
| * | |
| * - R, that indicates that NLM_F_REQUEST is set. | |
| * - M, that indicates that NLM_F_MULTI is set. | |
| * - A, that indicates that NLM_F_ACK is set. | |
| * - E, that indicates that NLM_F_ECHO is set. | |
| * | |
| * The lack of one flag is displayed with '-'. On the other hand, the possible | |
| * attribute flags available are: | |
| * | |
| * - N, that indicates that NLA_F_NESTED is set. | |
| * - B, that indicates that NLA_F_NET_BYTEORDER is set. | |
| cmd: list all sets | |
| https://github.com/Mic92/nftables/blob/master/src/main.c:184: netlink_genid_get() -> mnl_genid_get() -> nftnl_nlmsg_build_hdr(); | |
| nftnl_nlmsg_build_hdr(0x7ffcdeb88610, 16, 0, 0) = 0x7ffcdeb88610 | |
| mnl_socket_get_portid(0x20de360, 0x7ffcdeb88610, 20, 0x41ab20) = 0 | |
| mnl_nlmsg_fprintf(0x7fa1f4265640, 0x7ffcdeb88610, 20, 4 | |
| ---------------- ------------------ | |
| | 0000000020 | | message length | | |
| | 02576 | R--- | | type | flags | NFT_MSG_GETGEN | |
| | 0000000000 | | sequence number| | |
| | 0000000000 | | port ID | | |
| ---------------- ------------------ | |
| | 00 00 00 00 | | extra header | | |
| ---------------- ------------------ | |
| mnl_socket_sendto(0x20de360, 0x7ffcdeb88610, 20, 1024) = 20 | |
| getpagesize() = 4096 | |
| mnl_socket_recvfrom(0x20de360, 0x7ffcdeb775c0, 0x10fff, 0x7fa1f3fafed3) = 28 | |
| mnl_cb_run(0x7ffcdeb775c0, 28, 0, 0 <unfinished ...> | |
| mnl_nlmsg_get_payload(0x7ffcdeb775c0, 0, 1, 1) = 0x7ffcdeb775d0 | |
| <... mnl_cb_run resumed> ) = 1 | |
| mnl_socket_recvfrom(0x20de360, 0x7ffcdeb775c0, 0x10fff, 0) = -1 | |
| __errno_location() = 0x7fa1f4d72698 | |
| getpagesize() = 4096 | |
| nftnl_table_list_alloc(0x20de360, 0, 8192, 0) = 0x20de590 | |
| nftnl_nlmsg_build_hdr(0x7ffcdeb885e0, 1, 0, 768) = 0x7ffcdeb885e0 | |
| mnl_socket_get_portid(0x20de360, 0x7ffcdeb885e0, 20, 0x41aec0) = 0 | |
| mnl_nlmsg_fprintf(0x7fa1f4265640, 0x7ffcdeb885e0, 20, 4 | |
| ---------------- ------------------ | |
| | 0000000020 | | message length | | |
| | 02561 | R--- | | type | flags | this could be NFTA_SET_ELEM_LIST_TABLE or NFT_MSG_GETTABLE | |
| | 0000000000 | | sequence number| | |
| | 0000000000 | | port ID | | |
| ---------------- ------------------ | |
| | 00 00 00 00 | | extra header | | |
| ---------------- ------------------ | |
| mnl_socket_sendto(0x20de360, 0x7ffcdeb885e0, 20, 1024) = 20 | |
| getpagesize() = 4096 | |
| mnl_socket_recvfrom(0x20de360, 0x7ffcdeb77590, 0x10fff, 0x7fa1f3fafed3) = 96 | |
| mnl_cb_run(0x7ffcdeb77590, 96, 0, 0 <unfinished ...> | |
| mnl_nlmsg_get_payload(0x7ffcdeb77590, 0x20de590, 1, 1) = 0x7ffcdeb775a0 | |
| nftnl_table_alloc(0x7ffcdeb77590, 0x20de590, 19, 1) = 0x20de6c0 | |
| nftnl_table_nlmsg_parse(0x7ffcdeb77590, 0x20de6c0, 40, 5) = 0 | |
| nftnl_table_list_add_tail(0x20de6c0, 0x20de590, 2, 0x706c65) = 0x20de590 | |
| mnl_nlmsg_get_payload(0x7ffcdeb775c0, 0x20de590, 1, 0x706c01) = 0x7ffcdeb775d0 | |
| nftnl_table_alloc(0x7ffcdeb775c0, 0x20de590, 19, 0x706c01) = 0x20de710 | |
| nftnl_table_nlmsg_parse(0x7ffcdeb775c0, 0x20de710, 40, 5) = 0 | |
| nftnl_table_list_add_tail(0x20de710, 0x20de590, 2, 0x726574) = 0x20de6c0 | |
| <... mnl_cb_run resumed> ) = 1 | |
| mnl_socket_recvfrom(0x20de360, 0x7ffcdeb77590, 0x10fff, 0) = 20 | |
| mnl_cb_run(0x7ffcdeb77590, 20, 0, 0) = 0 | |
| nftnl_table_list_foreach(0x20de590, 0x411220, 0x7ffcdeb89670, 0 <unfinished ...> | |
| calloc(184, 1) = 0x20de760 | |
| nftnl_table_get_u32(0x20de6c0, 1, 0x20de7e0, 0x20de800) = 2 | |
| nftnl_table_get_str(0x20de6c0, 0, 0x7ffcdeb89584, 0) = 0x20de6f0 | |
| __strdup(0x20de6f0, 0, 0x7ffcdeb89594, 0) = 0x20de820 | |
| nftnl_table_get_u32(0x20de6c0, 2, 0, 0x706c65) = 0 | |
| calloc(184, 1) = 0x20de840 | |
| nftnl_table_get_u32(0x20de710, 1, 0x20de8c0, 0x20de8c0) = 2 | |
| nftnl_table_get_str(0x20de710, 0, 0x7ffcdeb89584, 0) = 0x20de740 | |
| __strdup(0x20de740, 0, 0x7ffcdeb89594, 0) = 0x20de900 | |
| nftnl_table_get_u32(0x20de710, 2, 0, 0x726574) = 0 | |
| <... nftnl_table_list_foreach resumed> ) = 0 | |
| nftnl_table_list_free(0x20de590, 2, 0x20de760, 0) = 0x20de730 | |
| getpagesize() = 4096 | |
| nftnl_set_alloc(0x20de360, 2, 8192, 0x64f920) = 0x20de920 | |
| nftnl_nlmsg_build_hdr(0x7ffcdeb885e0, 10, 2, 772) = 0x7ffcdeb885e0 | |
| nftnl_set_set(0x20de920, 0, 0x20de820, 0) = 1 | |
| nftnl_set_nlmsg_build_payload(0x7ffcdeb885e0, 0x20de920, 0, 0) = 1 | |
| nftnl_set_free(0x20de920, 0x20de590, 5, 10) = 0 | |
| nftnl_set_list_alloc(0x7fa1f4264b70, 0, 0xffffffff, 0) = 0x20de590 | |
| mnl_socket_get_portid(0x20de360, 0x7ffcdeb885e0, 32, 0x41af40) = 0 | |
| mnl_nlmsg_fprintf(0x7fa1f4265640, 0x7ffcdeb885e0, 32, 4 | |
| ---------------- ------------------ | |
| | 0000000032 | | message length | | |
| | 02570 | R-A- | | type | flags | probably NFT_MSG_GETSET | |
| | 0000000000 | | sequence number| | |
| | 0000000000 | | port ID | | |
| ---------------- ------------------ | |
| | 02 00 00 00 | | extra header | | |
| |00009|--|00001| |len |flags| type| | |
| | 68 65 6c 70 | | data | h e l p | |
| | 00 7f 00 00 | | data | | |
| ---------------- ------------------ | |
| mnl_socket_sendto(0x20de360, 0x7ffcdeb885e0, 32, 1024) = 32 | |
| getpagesize() = 4096 | |
| mnl_socket_recvfrom(0x20de360, 0x7ffcdeb77590, 0x10fff, 0x7fa1f3fafed3) = 20 | |
| mnl_cb_run(0x7ffcdeb77590, 20, 0, 0) = 0 | |
| nftnl_set_list_foreach(0x20de590, 0x411b10, 0x7ffcdeb89670, 0) = 0 | |
| nftnl_set_list_free(0x20de590, 0x411b10, 0x7ffcdeb89670, 0) = 0x20de730 | |
| getpagesize() = 4096 | |
| nftnl_chain_list_alloc(0x20de360, 2, 8192, 0x20de730) = 0x20de590 | |
| nftnl_nlmsg_build_hdr(0x7ffcdeb885d0, 4, 2, 768) = 0x7ffcdeb885d0 | |
| mnl_socket_get_portid(0x20de360, 0x7ffcdeb885d0, 20, 0x41ae40) = 0 | |
| mnl_nlmsg_fprintf(0x7fa1f4265640, 0x7ffcdeb885d0, 20, 4 | |
| ---------------- ------------------ | |
| | 0000000020 | | message length | | |
| | 02564 | R--- | | type | flags | probably NFT_MSG_GETCHAIN | |
| | 0000000000 | | sequence number| | |
| | 0000000000 | | port ID | | |
| ---------------- ------------------ | |
| | 02 00 00 00 | | extra header | | |
| ---------------- ------------------ | |
| mnl_socket_sendto(0x20de360, 0x7ffcdeb885d0, 20, 1024) = 20 | |
| getpagesize() = 4096 | |
| mnl_socket_recvfrom(0x20de360, 0x7ffcdeb77580, 0x10fff, 0x7fa1f3fafed3) = 20 | |
| mnl_cb_run(0x7ffcdeb77580, 20, 0, 0) = 0 | |
| nftnl_chain_list_foreach(0x20de590, 0x411120, 0x7ffcdeb89670, 0) = 0 | |
| nftnl_chain_list_free(0x20de590, 0x411120, 0x7ffcdeb89670, 0) = 0x20de730 | |
| getpagesize() = 4096 | |
| nftnl_rule_list_alloc(0x20de360, 2, 8192, 0x20de730) = 0x20de590 | |
| nftnl_nlmsg_build_hdr(0x7ffcdeb885d0, 7, 2, 768) = 0x7ffcdeb885d0 | |
| mnl_socket_get_portid(0x20de360, 0x7ffcdeb885d0, 20, 0x41adc0) = 0 | |
| mnl_nlmsg_fprintf(0x7fa1f4265640, 0x7ffcdeb885d0, 20, 4 | |
| ---------------- ------------------ | |
| | 0000000020 | | message length | | |
| | 02567 | R--- | | type | flags | probably NFT_MSG_GETRULE | |
| | 0000000000 | | sequence number| | |
| | 0000000000 | | port ID | | |
| ---------------- ------------------ | |
| | 02 00 00 00 | | extra header | | |
| ---------------- ------------------ | |
| mnl_socket_sendto(0x20de360, 0x7ffcdeb885d0, 20, 1024) = 20 | |
| getpagesize() = 4096 | |
| mnl_socket_recvfrom(0x20de360, 0x7ffcdeb77580, 0x10fff, 0x7fa1f3fafed3) = 20 | |
| mnl_cb_run(0x7ffcdeb77580, 20, 0, 0) = 0 | |
| nftnl_rule_list_foreach(0x20de590, 0x4112c0, 0x7ffcdeb89670, 0) = 0 | |
| nftnl_rule_list_free(0x20de590, 0x4112c0, 0x7ffcdeb89670, 0) = 0x20de730 | |
| getpagesize() = 4096 | |
| nftnl_set_alloc(0x20de360, 2, 8192, 0x20de730) = 0x20de920 | |
| nftnl_nlmsg_build_hdr(0x7ffcdeb885e0, 10, 2, 772) = 0x7ffcdeb885e0 | |
| nftnl_set_set(0x20de920, 0, 0x20de900, 0) = 1 | |
| nftnl_set_nlmsg_build_payload(0x7ffcdeb885e0, 0x20de920, 0, 0) = 1 | |
| nftnl_set_free(0x20de920, 0x20de590, 7, 14) = 0 | |
| nftnl_set_list_alloc(0x7fa1f4264b70, 0, 0xffffffff, 0) = 0x20de590 | |
| mnl_socket_get_portid(0x20de360, 0x7ffcdeb885e0, 32, 0x41af40) = 0 | |
| mnl_nlmsg_fprintf(0x7fa1f4265640, 0x7ffcdeb885e0, 32, 4 | |
| ---------------- ------------------ | |
| | 0000000032 | | message length | | |
| | 02570 | R-A- | | type | flags | probably NFT_MSG_GETSET | |
| | 0000000000 | | sequence number| | |
| | 0000000000 | | port ID | | |
| ---------------- ------------------ | |
| | 02 00 00 00 | | extra header | | |
| |00011|--|00001| |len |flags| type| | |
| | 66 69 6c 74 | | data | f i l t | |
| | 65 72 00 00 | | data | e r | |
| ---------------- ------------------ | |
| mnl_socket_sendto(0x20de360, 0x7ffcdeb885e0, 32, 1024) = 32 | |
| getpagesize() = 4096 | |
| mnl_socket_recvfrom(0x20de360, 0x7ffcdeb77590, 0x10fff, 0x7fa1f3fafed3) = 72 | |
| mnl_cb_run(0x7ffcdeb77590, 72, 0, 0 <unfinished ...> | |
| mnl_nlmsg_get_payload(0x7ffcdeb77590, 0x20de590, 1, 1) = 0x7ffcdeb775a0 | |
| nftnl_set_alloc(0x7ffcdeb77590, 0x20de590, 19, 1) = 0x20de920 | |
| nftnl_set_nlmsg_parse(0x7ffcdeb77590, 0x20de920, 0x20de968, 0x20de980) = 0 | |
| nftnl_set_list_add_tail(0x20de920, 0x20de590, 155, 2) = 0x20de590 | |
| <... mnl_cb_run resumed> ) = 1 | |
| mnl_socket_recvfrom(0x20de360, 0x7ffcdeb77590, 0x10fff, 0) = 20 | |
| mnl_cb_run(0x7ffcdeb77590, 20, 0, 0) = 0 | |
| nftnl_set_list_foreach(0x20de590, 0x411b10, 0x7ffcdeb89670, 0 <unfinished ...> | |
| nftnl_set_get_u32(0x20de920, 3, 0x7ffcdeb89670, 0) = 7 | |
| nftnl_set_get_u32(0x20de920, 2, 0x7ffcdeb89574, 0) = 0 | |
| calloc(192, 1) = 0x20de990 | |
| nftnl_set_get_u32(0x20de920, 7, 0, 0) = 2 | |
| nftnl_set_get_str(0x20de920, 0, 0x7ffcdeb89574, 0) = 0x20de740 | |
| __strdup(0x20de740, 0, 0x7ffcdeb89584, 0) = 0x20dea60 | |
| nftnl_set_get_str(0x20de920, 1, 0, 0x726574) = 0x20de6f0 | |
| __strdup(0x20de6f0, 1, 0x7ffcdeb89584, 0) = 0x20dea80 | |
| nftnl_set_get_u32(0x20de920, 4, 0, 0x7469702d6c6961) = 4 | |
| nftnl_set_get_u32(0x20de920, 2, 0x7ffcdeb89574, 0) = 0 | |
| nftnl_set_is_set(0x20de920, 6, 0x7ffcdeb89574, 0) = 0 | |
| nftnl_set_is_set(0x20de920, 11, 0x7ffcdeb89574, 6) = 2048 | |
| nftnl_set_is_set(0x20de920, 12, 0x7ffcdeb89574, 11) = 4096 | |
| nftnl_set_is_set(0x20de920, 9, 0x7ffcdeb89574, 12) = 512 | |
| nftnl_set_is_set(0x20de920, 10, 0x7ffcdeb89574, 9) = 1024 | |
| <... nftnl_set_list_foreach resumed> ) = 0 | |
| nftnl_set_list_free(0x20de590, 10, 0x7ffcdeb89678, 10) = 0x20de6e0 | |
| nftnl_set_alloc(0x20de9a0, 0x20de9a0, 0x437800, 0x20de990) = 0x20de920 | |
| nftnl_set_set_u32(0x20de920, 7, 2, 0x20de980) = 128 | |
| nftnl_set_set_str(0x20de920, 0, 0x20dea60, 7) = 1 | |
| nftnl_set_set_str(0x20de920, 1, 0x20dea80, 0) = 2 | |
| nftnl_set_set_u32(0x20de920, 8, 1, 1) = 256 | |
| getpagesize() = 4096 | |
| nftnl_set_get_u32(0x20de920, 7, 8192, 8) = 2 | |
| nftnl_nlmsg_build_hdr(0x7ffcdeb885d0, 13, 2, 772) = 0x7ffcdeb885d0 | |
| nftnl_set_nlmsg_build_payload(0x7ffcdeb885d0, 0x20de920, 0, 0) = 387 | |
| mnl_socket_get_portid(0x20de360, 0x7ffcdeb885d0, 60, 0x41ad50) = 0 | |
| mnl_nlmsg_fprintf(0x7fa1f4265640, 0x7ffcdeb885d0, 60, 4 | |
| ---------------- ------------------ | |
| | 0000000060 | | message length | | |
| | 02573 | R-A- | | type | flags | probably NFT_MSG_GETSETELEM | |
| | 0000000000 | | sequence number| | |
| | 0000000000 | | port ID | | |
| ---------------- ------------------ | |
| | 02 00 00 00 | | extra header | | |
| |00011|--|00001| |len |flags| type| | |
| | 66 69 6c 74 | | data | f i l t | |
| | 65 72 00 00 | | data | e r | |
| |00017|--|00002| |len |flags| type| | |
| | 44 46 57 2d | | data | D F W | |
| | 6d 61 69 6c | | data | m a i l | |
| | 2d 70 69 74 | | data | p i t | |
| | 00 19 14 12 | | data | | |
| |00008|--|00010| |len |flags| type| | |
| | 00 00 00 01 | | data | | |
| ---------------- ------------------ | |
| mnl_socket_sendto(0x20de360, 0x7ffcdeb885d0, 60, 1024) = 60 | |
| getpagesize() = 4096 | |
| mnl_socket_recvfrom(0x20de360, 0x7ffcdeb77580, 0x10fff, 0x7fa1f3fafed3) = 76 | |
| mnl_cb_run(0x7ffcdeb77580, 76, 0, 0 <unfinished ...> | |
| mnl_nlmsg_get_payload(0x7ffcdeb77580, 0x20de920, 1, 1) = 0x7ffcdeb77590 | |
| nftnl_set_elems_nlmsg_parse(0x7ffcdeb77580, 0x20de920, 19, 1) = 0 | |
| <... mnl_cb_run resumed> ) = 0 | |
| calloc(128, 1) = 0x20deaa0 | |
| nftnl_set_elem_foreach(0x20de920, 0x412700, 0x7ffcdeb89670, 0x20deb00) = 0 | |
| nftnl_set_free(0x20de920, 0x412700, 0x7ffcdeb89670, 0x20deb00) = 0 | |
| getpagesize() = 4096 | |
| nftnl_chain_list_alloc(0x20de360, 2, 8192, 0) = 0x20de6f0 | |
| nftnl_nlmsg_build_hdr(0x7ffcdeb885d0, 4, 2, 768) = 0x7ffcdeb885d0 | |
| mnl_socket_get_portid(0x20de360, 0x7ffcdeb885d0, 20, 0x41ae40) = 0 | |
| mnl_nlmsg_fprintf(0x7fa1f4265640, 0x7ffcdeb885d0, 20, 4 | |
| ---------------- ------------------ | |
| | 0000000020 | | message length | | |
| | 02564 | R--- | | type | flags | probably NFT_MSG_GETCHAIN | |
| | 0000000000 | | sequence number| | |
| | 0000000000 | | port ID | | |
| ---------------- ------------------ | |
| | 02 00 00 00 | | extra header | | |
| ---------------- ------------------ | |
| mnl_socket_sendto(0x20de360, 0x7ffcdeb885d0, 20, 1024) = 20 | |
| getpagesize() = 4096 | |
| mnl_socket_recvfrom(0x20de360, 0x7ffcdeb77580, 0x10fff, 0x7fa1f3fafed3) = 20 | |
| mnl_cb_run(0x7ffcdeb77580, 20, 0, 0) = 0 | |
| nftnl_chain_list_foreach(0x20de6f0, 0x411120, 0x7ffcdeb89670, 0) = 0 | |
| nftnl_chain_list_free(0x20de6f0, 0x411120, 0x7ffcdeb89670, 0) = 0x20de580 | |
| getpagesize() = 4096 | |
| nftnl_rule_list_alloc(0x20de360, 2, 8192, 0x20de580) = 0x20de6f0 | |
| nftnl_nlmsg_build_hdr(0x7ffcdeb885d0, 7, 2, 768) = 0x7ffcdeb885d0 | |
| mnl_socket_get_portid(0x20de360, 0x7ffcdeb885d0, 20, 0x41adc0) = 0 | |
| mnl_nlmsg_fprintf(0x7fa1f4265640, 0x7ffcdeb885d0, 20, 4 | |
| ---------------- ------------------ | |
| | 0000000020 | | message length | | |
| | 02567 | R--- | | type | flags | probably NFT_MSG_GETRULE | |
| | 0000000000 | | sequence number| | |
| | 0000000000 | | port ID | | |
| ---------------- ------------------ | |
| | 02 00 00 00 | | extra header | | |
| ---------------- ------------------ | |
| output: | |
| set DFW-mail-pit { | |
| type ipv4_addr | |
| } | |
| ''' | |
| class nftables_msg(nfgen_msg): | |
| nla_map = (( | |
| )) |
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etc. I submitted some draft code for messages, see in the repo