diff options
author | Damjan Marion <damarion@cisco.com> | 2017-04-20 11:42:28 +0200 |
---|---|---|
committer | Damjan Marion <dmarion.lists@gmail.com> | 2017-04-24 14:49:00 +0000 |
commit | 757585db71b78c4edf91ba011be419264de43d1a (patch) | |
tree | d12a78253ba81a0feab0c40dcae2aefc13438873 /build-root/emacs-lisp/tunnel-c-skel.el | |
parent | 53129423a6f4e43b39f7547424fbaea99e56f7e2 (diff) |
Move emacs stuff to extras/
Change-Id: Ibbb7d8500e9064215cf912bd00bdf72a748f8a27
Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'build-root/emacs-lisp/tunnel-c-skel.el')
-rw-r--r-- | build-root/emacs-lisp/tunnel-c-skel.el | 452 |
1 files changed, 0 insertions, 452 deletions
diff --git a/build-root/emacs-lisp/tunnel-c-skel.el b/build-root/emacs-lisp/tunnel-c-skel.el deleted file mode 100644 index a1b1757dab7..00000000000 --- a/build-root/emacs-lisp/tunnel-c-skel.el +++ /dev/null @@ -1,452 +0,0 @@ -;;; tunnel-c-skel.el - tunnel encap cli / api - -(require 'skeleton) - -(define-skeleton skel-tunnel-c -"Insert a tunnel cli/api implementation" -nil -'(setq encap_stack (skeleton-read "encap_stack (e.g ip4_udp_lisp): ")) -'(setq ENCAP_STACK (upcase encap_stack)) -'(setq encap-stack (replace-regexp-in-string "_" "-" encap_stack)) -" -#include <vnet/" encap-stack "/" encap_stack" .h> - -" encap_stack "_main_t " encap_stack "_main; - -static u8 * format_decap_next (u8 * s, va_list * args) -{ - u32 next_index = va_arg (*args, u32); - - switch (next_index) - { - case " ENCAP_STACK "_INPUT_NEXT_DROP: - return format (s, \"drop\"); - case " ENCAP_STACK "_INPUT_NEXT_IP4_INPUT: - return format (s, \"ip4\"); - case " ENCAP_STACK "_INPUT_NEXT_IP6_INPUT: - return format (s, \"ip6\"); - case " ENCAP_STACK "_INPUT_NEXT_" ENCAP_STACK "_ENCAP: - return format (s, \"" encap-stack "\"); - default: - return format (s, \"unknown %d\", next_index); - } - return s; -} - -u8 * format_" encap_stack "_tunnel (u8 * s, va_list * args) -{ - " encap_stack "_tunnel_t * t = va_arg (*args, " encap_stack "_tunnel_t *); - " encap_stack "_main_t * ngm = &" encap_stack "_main; - - s = format (s, - \"[%d] %U (src) %U (dst) fibs: encap %d, decap %d\", - t - ngm->tunnels, - format_ip4_address, &t->src, - format_ip4_address, &t->dst, - t->encap_fib_index, - t->decap_fib_index); - - s = format (s, \" decap next %U\\n\", format_decap_next, t->decap_next_index); - /* FIXME: add protocol details */ - return s; -} - -static u8 * format_" encap_stack "_name (u8 * s, va_list * args) -{ - u32 dev_instance = va_arg (*args, u32); - return format (s, \"" encap_stack "_tunnel%d\", dev_instance); -} - -static uword dummy_interface_tx (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - clib_warning (\"you shouldn't be here, leaking buffers...\"); - return frame->n_vectors; -} - -VNET_DEVICE_CLASS (" encap_stack "_device_class,static) = { - .name = "" ENCAP_STACK "", - .format_device_name = format_" encap_stack "_name, - .format_tx_trace = format_" encap_stack "_encap_trace, - .tx_function = dummy_interface_tx, -}; - -static uword dummy_set_rewrite (vnet_main_t * vnm, - u32 sw_if_index, - u32 l3_type, - void * dst_address, - void * rewrite, - uword max_rewrite_bytes) -{ - return 0; -} - -u8 * format_" encap_stack "_header_with_length (u8 * s, va_list * args) -{ - " encap_stack "_header_t * h = va_arg (*args, " encap_stack "_header_t *); - u32 max_header_bytes = va_arg (*args, u32); - u32 header_bytes; - - header_bytes = sizeof (h[0]); - if (max_header_bytes != 0 && header_bytes > max_header_bytes) - return format (s, \"" encap-stack "header truncated\"); - - /* FIXME: pretty-print an " encap_stack " header */ - - return s; -} - -VNET_HW_INTERFACE_CLASS (" encap_stack "_hw_class) = { - .name = \"" ENCAP_STACK "\", - .format_header = format_" encap_stack "_header_with_length, - .set_rewrite = dummy_set_rewrite, -}; - -#define foreach_copy_field \ -_(src.as_u32) \ -_(dst.as_u32) \ -_(encap_fib_index) \ -_(decap_fib_index) \ -_(decap_next_index) \ -_(FIXME_ADD_ALL_COPY_FIELDS ) - -static int " encap_stack "_rewrite (" encap_stack "_tunnel_t * t) -{ - u8 *rw = 0; - ip4_header_t * ip0; - " encap_stack "_header_t * h0; - int len; - - len = sizeof (*h0); - - vec_validate_aligned (rw, len-1, CLIB_CACHE_LINE_BYTES); - - h0 = (ip4_udp_" encap_stack "_header_t *) rw; - - /* FIXME: build the actual header here... */ - - /* Fixed portion of the (outer) ip4 header */ - ip0 = &h0->ip4; - ip0->ip_version_and_header_length = 0x45; - ip0->ttl = 254; - ip0->protocol = IP_PROTOCOL_UDP; - - /* we'll fix up the ip4 header length and checksum after-the-fact */ - ip0->src_address.as_u32 = t->src.as_u32; - ip0->dst_address.as_u32 = t->dst.as_u32; - ip0->checksum = ip4_header_checksum (ip0); - - /* UDP header, randomize src port on something, maybe? */ - h0->udp.src_port = clib_host_to_net_u16 (4341); - h0->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_" encap_stack "); - - /* $$$ build a <mumble> tunnel header here */ - - t->rewrite = rw; - return (0); -} - -int vnet_" encap_stack "_add_del_tunnel -(vnet_" encap_stack "_add_del_tunnel_args_t *a, u32 * hw_if_indexp) -{ - " encap_stack "_main_t * ngm = &" encap_stack "_main; - " encap_stack "_tunnel_t *t = 0; - vnet_main_t * vnm = ngm->vnet_main; - vnet_hw_interface_t * hi; - uword * p; - u32 hw_if_index = ~0; - int rv; - " encap_stack "_tunnel_key_t key, *key_copy; - hash_pair_t *hp; - - key.FIXME = clib_host_to_net_XXX(FIXME); - - p = hash_get_mem (ngm->" encap_stack "_tunnel_by_key, &key); - - if (a->is_add) - { - /* adding a tunnel: tunnel must not already exist */ - if (p) - return VNET_API_ERROR_INVALID_VALUE; - - pool_get_aligned (ngm->tunnels, t, CLIB_CACHE_LINE_BYTES); - memset (t, 0, sizeof (*t)); - - /* copy from arg structure */ -#define _(x) t->x = a->x; - foreach_copy_field; -#undef _ - - rv = " encap_stack "_rewrite (t); - - if (rv) - { - pool_put (ngm->tunnels, t); - return rv; - } - - /* $$$$ use a simple hash if you can ... */ - key_copy = clib_mem_alloc (sizeof (*key_copy)); - clib_memcpy (key_copy, &key, sizeof (*key_copy)); - - hash_set_mem (ngm->" encap_stack "_tunnel_by_key, key_copy, - t - ngm->tunnels); - - /* - * interface freelist / recycle shtik - * This simple implementation rapidly reuses freed tunnel interfaces. - * Consider whether to refcount, etc. etc. - */ - if (vec_len (ngm->free_" encap_stack "_tunnel_hw_if_indices) > 0) - { - hw_if_index = ngm->free_" encap_stack "_tunnel_hw_if_indices - [vec_len (ngm->free_" encap_stack "_tunnel_hw_if_indices)-1]; - _vec_len (ngm->free_" encap_stack "_tunnel_hw_if_indices) -= 1; - - hi = vnet_get_hw_interface (vnm, hw_if_index); - hi->dev_instance = t - ngm->tunnels; - hi->hw_instance = hi->dev_instance; - } - else - { - hw_if_index = vnet_register_interface - (vnm, " encap_stack "_device_class.index, t - ngm->tunnels, - " encap_stack "_hw_class.index, t - ngm->tunnels); - hi = vnet_get_hw_interface (vnm, hw_if_index); - hi->output_node_index = " encap_stack "_encap_node.index; - } - - t->hw_if_index = hw_if_index; - - vnet_sw_interface_set_flags (vnm, hi->sw_if_index, - VNET_SW_INTERFACE_FLAG_ADMIN_UP); - } - else - { - /* deleting a tunnel: tunnel must exist */ - if (!p) - return VNET_API_ERROR_NO_SUCH_ENTRY; - - t = pool_elt_at_index (ngm->tunnels, p[0]); - - vnet_sw_interface_set_flags (vnm, t->hw_if_index, 0 /* down */); - vec_add1 (ngm->free_" encap_stack "_tunnel_hw_if_indices, t->hw_if_index); - - hp = hash_get_pair (ngm->" encap_stack "_tunnel_by_key, &key); - key_copy = (void *)(hp->key); - hash_unset_mem (ngm->" encap_stack "_tunnel_by_key, &key); - clib_mem_free (key_copy); - - vec_free (t->rewrite); - pool_put (ngm->tunnels, t); - } - - if (hw_if_indexp) - *hw_if_indexp = hw_if_index; - - return 0; -} - -static u32 fib_index_from_fib_id (u32 fib_id) -{ - ip4_main_t * im = &ip4_main; - uword * p; - - p = hash_get (im->fib_index_by_table_id, fib_id); - if (!p) - return ~0; - - return p[0]; -} - -static uword unformat_decap_next (unformat_input_t * input, va_list * args) -{ - u32 * result = va_arg (*args, u32 *); - u32 tmp; - - if (unformat (input, \"drop\")) - *result = " ENCAP_STACK "_INPUT_NEXT_DROP; - else if (unformat (input, \"ip4\")) - *result = " ENCAP_STACK "_INPUT_NEXT_IP4_INPUT; - else if (unformat (input, \"ip6\")) - *result = " ENCAP_STACK "_INPUT_NEXT_IP6_INPUT; - else if (unformat (input, \"ethernet\")) - *result = " ENCAP_STACK "_INPUT_NEXT_IP6_INPUT; - else if (unformat (input, \"" encap-stack "\")) - *result = " ENCAP_STACK "_INPUT_NEXT_" ENCAP_STACK "_ENCAP; - else if (unformat (input, \"%d\", &tmp)) - *result = tmp; - else - return 0; - return 1; -} - -static clib_error_t * -" encap_stack "_add_del_tunnel_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) -{ - unformat_input_t _line_input, * line_input = &_line_input; - clib_error_t *error = 0; - ip4_address_t src, dst; - u8 is_add = 1; - u8 src_set = 0; - u8 dst_set = 0; - u32 encap_fib_index = 0; - u32 decap_fib_index = 0; - u8 next_protocol = " ENCAP_STACK "_NEXT_PROTOCOL_IP4; - u32 decap_next_index = " ENCAP_STACK "_INPUT_NEXT_IP4_INPUT; - u8 flags = " ENCAP_STACK "_FLAGS_P; - u8 ver_res = 0; - u8 res = 0; - u32 iid = 0; - u8 iid_set = 0; - u32 tmp; - int rv; - vnet_" encap_stack "_add_del_tunnel_args_t _a, * a = &_a; - - /* 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, \"src %U\", - unformat_ip4_address, &src)) - src_set = 1; - else if (unformat (line_input, \"dst %U\", - unformat_ip4_address, &dst)) - dst_set = 1; - else if (unformat (line_input, \"encap-vrf-id %d\", &tmp)) - { - encap_fib_index = fib_index_from_fib_id (tmp); - if (encap_fib_index == ~0) - { - unformat_free (line_input); - return clib_error_return (0, \"nonexistent encap fib id %d\", tmp); - } - } - else if (unformat (line_input, \"decap-vrf-id %d\", &tmp)) - { - decap_fib_index = fib_index_from_fib_id (tmp); - if (decap_fib_index == ~0) - { - unformat_free (line_input); - return clib_error_return (0, \"nonexistent decap fib id %d\", tmp); - } - } - else if (unformat (line_input, \"decap-next %U\", unformat_decap_next, - &decap_next_index)) - ; - 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, \"next-nsh\")) - next_protocol = 4; - /* - * $$$ allow the user to specify anything they want - * in the " ENCAP_STACK " header - */ - else - { - error = clib_error_return (0, \"parse error: '%U'\", - format_unformat_error, line_input); - unformat_free (line_input); - return error; - } - } - - unformat_free (line_input); - - if (src_set == 0) - return clib_error_return (0, \"tunnel src address not specified\"); - - if (dst_set == 0) - return clib_error_return (0, \"tunnel dst address not specified\"); - - memset (a, 0, sizeof (*a)); - - a->is_add = is_add; - -#define _(x) a->x = x; - foreach_copy_field; -#undef _ - - rv = vnet_" encap_stack "_add_del_tunnel (a, 0 /* hw_if_indexp */); - - switch(rv) - { - case 0: - break; - case VNET_API_ERROR_INVALID_VALUE: - return clib_error_return (0, \"tunnel already exists...\"); - - case VNET_API_ERROR_NO_SUCH_ENTRY: - return clib_error_return (0, \"tunnel does not exist...\"); - - default: - return clib_error_return - (0, \"vnet_" encap_stack "_add_del_tunnel returned %d\", rv); - } - - return 0; -} - -VLIB_CLI_COMMAND (create_" encap_stack "_tunnel_command, static) = { - .path = \"lisp gpe tunnel\", - .short_help = - \"<mumble> tunnel src <ip4-addr> dst <ip4-addr>\\n\" - \" [encap-fib-id <nn>] [decap-fib-id <nn>]\\n\" - \" [decap-next [ip4|ip6|ethernet|nsh-encap|<nn>]][del]\\n\", - .function = " encap_stack "_add_del_tunnel_command_fn, -}; - -static clib_error_t * -show_" encap_stack "_tunnel_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) -{ - " encap_stack "_main_t * ngm = &" encap_stack "_main; - " encap_stack "_tunnel_t * t; - - if (pool_elts (ngm->tunnels) == 0) - vlib_cli_output (vm, \"No lisp-gpe tunnels configured...\"); - - pool_foreach (t, ngm->tunnels, - ({ - vlib_cli_output (vm, \"%U\", format_" encap_stack "_tunnel); - })); - - return 0; -} - -VLIB_CLI_COMMAND (show_" encap_stack "_tunnel_command, static) = { - .path = \"show lisp gpe tunnel\", - .function = show_" encap_stack "_tunnel_command_fn, -}; - -clib_error_t *" encap_stack "_init (vlib_main_t *vm) -{ - " encap_stack "_main_t *ngm = &" encap_stack "_main; - - ngm->vnet_main = vnet_get_main(); - ngm->vlib_main = vm; - - ngm->" encap_stack "_tunnel_by_key - = hash_create_mem (0, sizeof(" encap_stack "_tunnel_key_t), sizeof (uword)); - - /* YMMV, register with the local netstack */ - udp_register_dst_port (vm, UDP_DST_PORT_" encap_stack ", - " encap_stack "_input_node.index, 1 /* is_ip4 */); - return 0; -} - -VLIB_INIT_FUNCTION(" encap_stack "_init); - -") - |