From 4ba19b8a75c40cecd3818af2fd657fe5bf1b2f41 Mon Sep 17 00:00:00 2001 From: Filip Tehlar Date: Tue, 26 Feb 2019 02:59:07 -0800 Subject: nsh: migrate old MUTIARCH macros to VLIB_NODE_FN Change-Id: Iafe8b3a38f2a7d7571e60db91608d8130bb07cb3 Signed-off-by: Filip Tehlar --- src/plugins/nsh/nsh_cli.c | 645 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 645 insertions(+) create mode 100644 src/plugins/nsh/nsh_cli.c (limited to 'src/plugins/nsh/nsh_cli.c') diff --git a/src/plugins/nsh/nsh_cli.c b/src/plugins/nsh/nsh_cli.c new file mode 100644 index 00000000000..8bebb7220c4 --- /dev/null +++ b/src/plugins/nsh/nsh_cli.c @@ -0,0 +1,645 @@ +/* + * nsh_cli.c - nsh cli functions + * + * Copyright (c) 2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include +#include +#include +#include + +/* format from network order */ +u8 * +format_nsh_pop_header (u8 * s, va_list * args) +{ + return format_nsh_header (s, args); +} + +u8 * +format_nsh_pop_node_map_trace (u8 * s, va_list * args) +{ + return format_nsh_node_map_trace (s, args); +} + +static uword +unformat_nsh_action (unformat_input_t * input, va_list * args) +{ + u32 *result = va_arg (*args, u32 *); + u32 tmp; + + if (unformat (input, "swap")) + *result = NSH_ACTION_SWAP; + else if (unformat (input, "push")) + *result = NSH_ACTION_PUSH; + else if (unformat (input, "pop")) + *result = NSH_ACTION_POP; + else if (unformat (input, "%d", &tmp)) + *result = tmp; + else + return 0; + + return 1; +} + +static u8 * +format_nsh_action (u8 * s, va_list * args) +{ + u32 nsh_action = va_arg (*args, u32); + + switch (nsh_action) + { + case NSH_ACTION_SWAP: + return format (s, "swap"); + case NSH_ACTION_PUSH: + return format (s, "push"); + case NSH_ACTION_POP: + return format (s, "pop"); + default: + return format (s, "unknown %d", nsh_action); + } + return s; +} + +u8 * +format_nsh_map (u8 * s, va_list * args) +{ + nsh_map_t *map = va_arg (*args, nsh_map_t *); + + s = format (s, "nsh entry nsp: %d nsi: %d ", + (map->nsp_nsi >> NSH_NSP_SHIFT) & NSH_NSP_MASK, + map->nsp_nsi & NSH_NSI_MASK); + s = format (s, "maps to nsp: %d nsi: %d ", + (map->mapped_nsp_nsi >> NSH_NSP_SHIFT) & NSH_NSP_MASK, + map->mapped_nsp_nsi & NSH_NSI_MASK); + + s = format (s, " nsh_action %U\n", format_nsh_action, map->nsh_action); + + switch (map->next_node) + { + case NSH_NODE_NEXT_ENCAP_GRE4: + { + s = format (s, "encapped by GRE4 intf: %d", map->sw_if_index); + break; + } + case NSH_NODE_NEXT_ENCAP_GRE6: + { + s = format (s, "encapped by GRE6 intf: %d", map->sw_if_index); + break; + } + case NSH_NODE_NEXT_ENCAP_VXLANGPE: + { + s = format (s, "encapped by VXLAN GPE intf: %d", map->sw_if_index); + break; + } + case NSH_NODE_NEXT_ENCAP_VXLAN4: + { + s = format (s, "encapped by VXLAN4 intf: %d", map->sw_if_index); + break; + } + case NSH_NODE_NEXT_ENCAP_VXLAN6: + { + s = format (s, "encapped by VXLAN6 intf: %d", map->sw_if_index); + break; + } + case NSH_NODE_NEXT_DECAP_ETH_INPUT: + { + s = format (s, "encap-none"); + break; + } + case NSH_NODE_NEXT_ENCAP_LISP_GPE: + { + s = format (s, "encapped by LISP GPE intf: %d", map->sw_if_index); + break; + } + case NSH_NODE_NEXT_ENCAP_ETHERNET: + { + s = format (s, "encapped by Ethernet intf: %d", map->sw_if_index); + break; + } + default: + s = format (s, "only GRE and VXLANGPE support in this rev"); + } + + return s; +} + +static adj_index_t +nsh_get_adj_by_sw_if_index (u32 sw_if_index) +{ + adj_index_t ai = ~0; + + /* *INDENT-OFF* */ + pool_foreach_index(ai, adj_pool, + ({ + if (sw_if_index == adj_get_sw_if_index(ai)) + { + return ai; + } + })); + /* *INDENT-ON* */ + + return ~0; +} + + +/** + * CLI command for NSH map + */ +static clib_error_t * +nsh_add_del_map_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + unformat_input_t _line_input, *line_input = &_line_input; + u8 is_add = 1; + u32 nsp, nsi, mapped_nsp, mapped_nsi, nsh_action; + int nsp_set = 0, nsi_set = 0, mapped_nsp_set = 0, mapped_nsi_set = 0; + int nsh_action_set = 0; + u32 next_node = ~0; + u32 adj_index = ~0; + u32 sw_if_index = ~0; // temporary requirement to get this moved over to NSHSFC + u32 rx_sw_if_index = ~0; // temporary requirement to get this moved over to NSHSFC + nsh_add_del_map_args_t _a, *a = &_a; + u32 map_index; + int rv; + + /* Get a line of input. */ + if (!unformat_user (input, unformat_line_input, line_input)) + return 0; + + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "del")) + is_add = 0; + else if (unformat (line_input, "nsp %d", &nsp)) + nsp_set = 1; + else if (unformat (line_input, "nsi %d", &nsi)) + nsi_set = 1; + else if (unformat (line_input, "mapped-nsp %d", &mapped_nsp)) + mapped_nsp_set = 1; + else if (unformat (line_input, "mapped-nsi %d", &mapped_nsi)) + mapped_nsi_set = 1; + else if (unformat (line_input, "nsh_action %U", unformat_nsh_action, + &nsh_action)) + nsh_action_set = 1; + else if (unformat (line_input, "encap-gre4-intf %d", &sw_if_index)) + next_node = NSH_NODE_NEXT_ENCAP_GRE4; + else if (unformat (line_input, "encap-gre6-intf %d", &sw_if_index)) + next_node = NSH_NODE_NEXT_ENCAP_GRE6; + else if (unformat (line_input, "encap-vxlan-gpe-intf %d", &sw_if_index)) + next_node = NSH_NODE_NEXT_ENCAP_VXLANGPE; + else if (unformat (line_input, "encap-lisp-gpe-intf %d", &sw_if_index)) + next_node = NSH_NODE_NEXT_ENCAP_LISP_GPE; + else if (unformat (line_input, "encap-vxlan4-intf %d", &sw_if_index)) + next_node = NSH_NODE_NEXT_ENCAP_VXLAN4; + else if (unformat (line_input, "encap-vxlan6-intf %d", &sw_if_index)) + next_node = NSH_NODE_NEXT_ENCAP_VXLAN6; + else if (unformat (line_input, "encap-eth-intf %d", &sw_if_index)) + { + next_node = NSH_NODE_NEXT_ENCAP_ETHERNET; + adj_index = nsh_get_adj_by_sw_if_index (sw_if_index); + } + else + if (unformat + (line_input, "encap-none %d %d", &sw_if_index, &rx_sw_if_index)) + next_node = NSH_NODE_NEXT_DECAP_ETH_INPUT; + else + return clib_error_return (0, "parse error: '%U'", + format_unformat_error, line_input); + } + + unformat_free (line_input); + + if (nsp_set == 0 || nsi_set == 0) + return clib_error_return (0, "nsp nsi pair required. Key: for NSH entry"); + + if (mapped_nsp_set == 0 || mapped_nsi_set == 0) + return clib_error_return (0, + "mapped-nsp mapped-nsi pair required. Key: for NSH entry"); + + if (nsh_action_set == 0) + return clib_error_return (0, "nsh_action required: swap|push|pop."); + + if (next_node == ~0) + return clib_error_return (0, + "must specific action: [encap-gre-intf | encap-vxlan-gpe-intf | encap-lisp-gpe-intf | encap-none ]"); + + clib_memset (a, 0, sizeof (*a)); + + /* set args structure */ + a->is_add = is_add; + a->map.nsp_nsi = (nsp << NSH_NSP_SHIFT) | nsi; + a->map.mapped_nsp_nsi = (mapped_nsp << NSH_NSP_SHIFT) | mapped_nsi; + a->map.nsh_action = nsh_action; + a->map.sw_if_index = sw_if_index; + a->map.rx_sw_if_index = rx_sw_if_index; + a->map.next_node = next_node; + a->map.adj_index = adj_index; + + rv = nsh_add_del_map (a, &map_index); + + switch (rv) + { + case 0: + break; + case -1: //TODO API_ERROR_INVALID_VALUE: + return clib_error_return (0, + "mapping already exists. Remove it first."); + + case -2: // TODO API_ERROR_NO_SUCH_ENTRY: + return clib_error_return (0, "mapping does not exist."); + + default: + return clib_error_return (0, "nsh_add_del_map returned %d", rv); + } + + if ((a->map.next_node == NSH_NODE_NEXT_ENCAP_VXLAN4) + | (a->map.next_node == NSH_NODE_NEXT_ENCAP_VXLAN6)) + { + rv = nsh_add_del_proxy_session (a); + + switch (rv) + { + case 0: + break; + case -1: //TODO API_ERROR_INVALID_VALUE: + return clib_error_return (0, + "nsh-proxy-session already exists. Remove it first."); + + case -2: // TODO API_ERROR_NO_SUCH_ENTRY: + return clib_error_return (0, "nsh-proxy-session does not exist."); + + default: + return clib_error_return + (0, "nsh_add_del_proxy_session() returned %d", rv); + } + } + + return 0; +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (create_nsh_map_command, static) = { + .path = "create nsh map", + .short_help = + "create nsh map nsp nsi [del] mapped-nsp mapped-nsi nsh_action [swap|push|pop] " + "[encap-gre4-intf | encap-gre4-intf | encap-vxlan-gpe-intf | encap-lisp-gpe-intf " + " encap-vxlan4-intf | encap-vxlan6-intf | encap-eth-intf | encap-none]\n", + .function = nsh_add_del_map_command_fn, +}; +/* *INDENT-ON* */ + +/** + * CLI command for showing the mapping between NSH entries + */ +static clib_error_t * +show_nsh_map_command_fn (vlib_main_t * vm, + unformat_input_t * input, vlib_cli_command_t * cmd) +{ + nsh_main_t *nm = &nsh_main; + nsh_map_t *map; + + if (pool_elts (nm->nsh_mappings) == 0) + vlib_cli_output (vm, "No nsh maps configured."); + + pool_foreach (map, nm->nsh_mappings, ( + { + vlib_cli_output (vm, "%U", + format_nsh_map, + map); + } + )); + + return 0; +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (show_nsh_map_command, static) = { + .path = "show nsh map", + .function = show_nsh_map_command_fn, +}; +/* *INDENT-ON* */ + +/** + * CLI command for adding NSH entry + */ +static clib_error_t * +nsh_add_del_entry_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + unformat_input_t _line_input, *line_input = &_line_input; + u8 is_add = 1; + u8 ver_o_c = 0; + u8 ttl = 63; + u8 length = 0; + u8 md_type = 0; + u8 next_protocol = 1; /* default: ip4 */ + u32 nsp; + u8 nsp_set = 0; + u32 nsi; + u8 nsi_set = 0; + u32 nsp_nsi; + u32 c1 = 0; + u32 c2 = 0; + u32 c3 = 0; + u32 c4 = 0; + u8 *data = 0; + nsh_tlv_header_t tlv_header; + u8 cur_len = 0, tlvs_len = 0; + u8 *current; + nsh_main_t *nm = &nsh_main; + nsh_option_map_t _nsh_option, *nsh_option = &_nsh_option; + u8 option_size = 0; + u32 tmp; + int rv; + u32 entry_index; + nsh_add_del_entry_args_t _a, *a = &_a; + u8 has_ioam_trace_option = 0; + + /* Get a line of input. */ + if (!unformat_user (input, unformat_line_input, line_input)) + return 0; + + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "del")) + is_add = 0; + else if (unformat (line_input, "version %d", &tmp)) + ver_o_c |= (tmp & 3) << 6; + else if (unformat (line_input, "o-bit %d", &tmp)) + ver_o_c |= (tmp & 1) << 5; + else if (unformat (line_input, "c-bit %d", &tmp)) + ver_o_c |= (tmp & 1) << 4; + else if (unformat (line_input, "ttl %d", &ttl)) + ver_o_c |= (ttl & NSH_LEN_MASK) >> 2; + else if (unformat (line_input, "md-type %d", &tmp)) + md_type = tmp; + else if (unformat (line_input, "next-ip4")) + next_protocol = 1; + else if (unformat (line_input, "next-ip6")) + next_protocol = 2; + else if (unformat (line_input, "next-ethernet")) + next_protocol = 3; + else if (unformat (line_input, "c1 %d", &c1)) + ; + else if (unformat (line_input, "c2 %d", &c2)) + ; + else if (unformat (line_input, "c3 %d", &c3)) + ; + else if (unformat (line_input, "c4 %d", &c4)) + ; + else if (unformat (line_input, "nsp %d", &nsp)) + nsp_set = 1; + else if (unformat (line_input, "nsi %d", &nsi)) + nsi_set = 1; + else if (unformat (line_input, "tlv-ioam-trace")) + has_ioam_trace_option = 1; + else + return clib_error_return (0, "parse error: '%U'", + format_unformat_error, line_input); + } + + unformat_free (line_input); + + if (nsp_set == 0) + return clib_error_return (0, "nsp not specified"); + + if (nsi_set == 0) + return clib_error_return (0, "nsi not specified"); + + if (md_type == 1 && has_ioam_trace_option == 1) + return clib_error_return (0, "Invalid MD Type"); + + nsp_nsi = (nsp << 8) | nsi; + + clib_memset (a, 0, sizeof (*a)); + a->is_add = is_add; + + if (md_type == 1) + { + a->nsh_entry.md.md1_data.c1 = c1; + a->nsh_entry.md.md1_data.c2 = c2; + a->nsh_entry.md.md1_data.c3 = c3; + a->nsh_entry.md.md1_data.c4 = c4; + length = (sizeof (nsh_base_header_t) + sizeof (nsh_md1_data_t)) >> 2; + } + else if (md_type == 2) + { + length = sizeof (nsh_base_header_t) >> 2; + + vec_free (a->nsh_entry.tlvs_data); + tlvs_len = (MAX_METADATA_LEN << 2); + vec_validate_aligned (data, tlvs_len - 1, CLIB_CACHE_LINE_BYTES); + a->nsh_entry.tlvs_data = data; + current = data; + + if (has_ioam_trace_option) + { + tlv_header.class = clib_host_to_net_u16 (NSH_MD2_IOAM_CLASS); + tlv_header.type = NSH_MD2_IOAM_OPTION_TYPE_TRACE; + /* Uses network order's class and type to lookup */ + nsh_option = + nsh_md2_lookup_option (tlv_header.class, tlv_header.type); + if (nsh_option == NULL) + return clib_error_return (0, "iOAM Trace not registered"); + + if (nm->add_options[nsh_option->option_id] != NULL) + { + if (0 != nm->add_options[nsh_option->option_id] ((u8 *) current, + &option_size)) + { + return clib_error_return (0, "Invalid MD Type"); + } + } + + nm->options_size[nsh_option->option_id] = option_size; + /* round to 4-byte */ + option_size = (((option_size + 3) >> 2) << 2); + + cur_len += option_size; + current = data + option_size; + } + + /* Add more options' parsing */ + + a->nsh_entry.tlvs_len = cur_len; + length += (cur_len >> 2); + } + length = (length & NSH_LEN_MASK) | ((ttl & 0x3) << 6); + +#define _(x) a->nsh_entry.nsh_base.x = x; + foreach_copy_nsh_base_hdr_field; +#undef _ + + rv = nsh_add_del_entry (a, &entry_index); + + switch (rv) + { + case 0: + break; + default: + return clib_error_return (0, "nsh_add_del_entry returned %d", rv); + } + + return 0; +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (create_nsh_entry_command, static) = { + .path = "create nsh entry", + .short_help = + "create nsh entry {nsp nsi } [ttl ] [md-type ]" + " [c1 c2 c3 c4 ] [tlv-ioam-trace] [del]\n", + .function = nsh_add_del_entry_command_fn, +}; +/* *INDENT-ON* */ + +/* format from network order */ +u8 * +format_nsh_header (u8 * s, va_list * args) +{ + nsh_main_t *nm = &nsh_main; + nsh_md2_data_t *opt0; + nsh_md2_data_t *limit0; + nsh_option_map_t *nsh_option; + u8 option_len = 0; + + u8 *header = va_arg (*args, u8 *); + nsh_base_header_t *nsh_base = (nsh_base_header_t *) header; + nsh_md1_data_t *nsh_md1 = (nsh_md1_data_t *) (nsh_base + 1); + nsh_md2_data_t *nsh_md2 = (nsh_md2_data_t *) (nsh_base + 1); + opt0 = (nsh_md2_data_t *) nsh_md2; + limit0 = (nsh_md2_data_t *) ((u8 *) nsh_md2 + + ((nsh_base->length & NSH_LEN_MASK) * 4 + - sizeof (nsh_base_header_t))); + + s = format (s, "nsh ver %d ", (nsh_base->ver_o_c >> 6)); + if (nsh_base->ver_o_c & NSH_O_BIT) + s = format (s, "O-set "); + + if (nsh_base->ver_o_c & NSH_C_BIT) + s = format (s, "C-set "); + + s = format (s, "ttl %d ", (nsh_base->ver_o_c & NSH_TTL_H4_MASK) << 2 | + (nsh_base->length & NSH_TTL_L2_MASK) >> 6); + + s = format (s, "len %d (%d bytes) md_type %d next_protocol %d\n", + (nsh_base->length & NSH_LEN_MASK), + (nsh_base->length & NSH_LEN_MASK) * 4, + nsh_base->md_type, nsh_base->next_protocol); + + s = format (s, " service path %d service index %d\n", + (clib_net_to_host_u32 (nsh_base->nsp_nsi) >> NSH_NSP_SHIFT) & + NSH_NSP_MASK, + clib_net_to_host_u32 (nsh_base->nsp_nsi) & NSH_NSI_MASK); + + if (nsh_base->md_type == 1) + { + s = format (s, " c1 %d c2 %d c3 %d c4 %d\n", + clib_net_to_host_u32 (nsh_md1->c1), + clib_net_to_host_u32 (nsh_md1->c2), + clib_net_to_host_u32 (nsh_md1->c3), + clib_net_to_host_u32 (nsh_md1->c4)); + } + else if (nsh_base->md_type == 2) + { + s = format (s, " Supported TLVs: \n"); + + /* Scan the set of variable metadata, network order */ + while (opt0 < limit0) + { + nsh_option = nsh_md2_lookup_option (opt0->class, opt0->type); + if (nsh_option != NULL) + { + if (nm->trace[nsh_option->option_id] != NULL) + { + s = (*nm->trace[nsh_option->option_id]) (s, opt0); + } + else + { + s = + format (s, "\n untraced option %d length %d", + opt0->type, opt0->length); + } + } + else + { + s = + format (s, "\n unrecognized option %d length %d", + opt0->type, opt0->length); + } + + /* round to 4-byte */ + option_len = ((opt0->length + 3) >> 2) << 2; + opt0 = + (nsh_md2_data_t *) (((u8 *) opt0) + sizeof (nsh_md2_data_t) + + option_len); + } + } + + return s; +} + +u8 * +format_nsh_node_map_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + nsh_input_trace_t *t = va_arg (*args, nsh_input_trace_t *); + + s = format (s, "\n %U", format_nsh_header, &(t->trace_data)); + + return s; +} + +static clib_error_t * +show_nsh_entry_command_fn (vlib_main_t * vm, + unformat_input_t * input, vlib_cli_command_t * cmd) +{ + nsh_main_t *nm = &nsh_main; + nsh_entry_t *nsh_entry; + + if (pool_elts (nm->nsh_entries) == 0) + vlib_cli_output (vm, "No nsh entries configured."); + + pool_foreach (nsh_entry, nm->nsh_entries, ( + { + vlib_cli_output (vm, "%U", + format_nsh_header, + nsh_entry->rewrite); + vlib_cli_output (vm, + " rewrite_size: %d bytes", + nsh_entry->rewrite_size); + } + )); + + return 0; +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (show_nsh_entry_command, static) = { + .path = "show nsh entry", + .function = show_nsh_entry_command_fn, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ -- cgit 1.2.3-korg