diff options
Diffstat (limited to 'src/plugins')
-rw-r--r-- | src/plugins/acl/acl.c | 699 | ||||
-rw-r--r-- | src/plugins/acl/acl.h | 13 | ||||
-rw-r--r-- | src/plugins/acl/dataplane_node.c | 291 |
3 files changed, 304 insertions, 699 deletions
diff --git a/src/plugins/acl/acl.c b/src/plugins/acl/acl.c index 866c6ffc5f0..2af2d7a8b70 100644 --- a/src/plugins/acl/acl.c +++ b/src/plugins/acl/acl.c @@ -20,6 +20,7 @@ #include <acl/acl.h> #include <vnet/l2/l2_classify.h> +#include <vnet/l2/l2_in_out_feat_arc.h> #include <vnet/classify/in_out_acl.h> #include <vpp/app/version.h> @@ -489,86 +490,6 @@ acl_del_list (u32 acl_list_index) return 0; } -/* Some aids in ASCII graphing the content */ -#define XX "\377" -#define __ "\000" -#define _(x) -#define v -/* *INDENT-OFF* */ - -u8 ip4_5tuple_mask[] = - _(" dmac smac etype ") - _(ether) __ __ __ __ __ __ v __ __ __ __ __ __ v __ __ v - _(" v ihl totlen ") - _(0x0000) - __ __ __ __ - _(" ident fl+fo ") - _(0x0004) - __ __ __ __ - _(" ttl pr checksum ") - _(0x0008) - __ XX __ __ - _(" src address ") - _(0x000C) - XX XX XX XX - _(" dst address ") - _(0x0010) - XX XX XX XX - _("L4 T/U sport dport ") - _(tcpudp) - XX XX XX XX - _(padpad) - __ __ __ __ - _(padpad) - __ __ __ __ - _(padeth) - __ __; - - u8 ip6_5tuple_mask[] = - _(" dmac smac etype ") - _(ether) __ __ __ __ __ __ v __ __ __ __ __ __ v __ __ v - _(" v tc + flow ") - _(0x0000) __ __ __ __ - _(" plen nh hl ") - _(0x0004) __ __ XX __ - _(" src address ") - _(0x0008) XX XX XX XX - _(0x000C) XX XX XX XX - _(0x0010) XX XX XX XX - _(0x0014) XX XX XX XX - _(" dst address ") - _(0x0018) XX XX XX XX - _(0x001C) XX XX XX XX - _(0x0020) XX XX XX XX - _(0x0024) XX XX XX XX - _("L4T/U sport dport ") - _(tcpudp) XX XX XX XX _(padpad) __ __ __ __ _(padeth) __ __; - - u8 dot1q_5tuple_mask[] = - _(" dmac smac dot1q etype ") - _(ether) __ __ __ __ __ __ v __ __ __ __ __ __ v XX XX __ __ v XX XX v - _(padpad) __ __ __ __ - _(padpad) __ __ __ __ - _(padpad) __ __ __ __ - _(padeth) __ __; - - u8 dot1ad_5tuple_mask[] = - _(" dmac smac dot1ad dot1q etype ") - _(ether) __ __ __ __ __ __ v __ __ __ __ __ __ v XX XX __ __ XX XX __ __ v XX XX v - _(padpad) __ __ __ __ - _(padpad) __ __ __ __ - _(padeth) __ __; - - u8 ethertype_mask[] = - _(" dmac smac etype ") - _(ether) __ __ __ __ __ __ v __ __ __ __ __ __ v XX XX __ __; - -/* *INDENT-ON* */ -#undef XX -#undef __ -#undef _ -#undef v - static int count_skip (u8 * p, u32 size) { @@ -585,33 +506,6 @@ count_skip (u8 * p, u32 size) } static int -acl_classify_add_del_table_tiny (vnet_classify_main_t * cm, u8 * mask, - u32 mask_len, u32 next_table_index, - u32 miss_next_index, u32 * table_index, - int is_add) -{ - u32 nbuckets = 1; - u32 memory_size = 2 << 13; - u32 skip = count_skip (mask, mask_len); - u32 match = (mask_len / 16) - skip; - u8 *skip_mask_ptr = mask + 16 * skip; - u32 current_data_flag = 0; - int current_data_offset = 0; - - if (0 == match) - match = 1; - void *oldheap = clib_mem_set_heap (cm->vlib_main->heap_base); - int ret = vnet_classify_add_del_table (cm, skip_mask_ptr, nbuckets, - memory_size, skip, match, - next_table_index, miss_next_index, - table_index, current_data_flag, - current_data_offset, is_add, - 1 /* delete_chain */ ); - clib_mem_set_heap (oldheap); - return ret; -} - -static int acl_classify_add_del_table_small (vnet_classify_main_t * cm, u8 * mask, u32 mask_len, u32 next_table_index, u32 miss_next_index, u32 * table_index, @@ -640,502 +534,13 @@ acl_classify_add_del_table_small (vnet_classify_main_t * cm, u8 * mask, } static int -acl_unhook_l2_input_classify (acl_main_t * am, u32 sw_if_index) -{ - vnet_classify_main_t *cm = &vnet_classify_main; - u32 ip4_table_index = ~0; - u32 ip6_table_index = ~0; - u32 dot1q_table_index = ~0; - u32 dot1ad_table_index = ~0; - u32 etype_table_index = ~0; - void *oldheap = acl_set_heap (am); - - vec_validate_init_empty (am->acl_ip4_input_classify_table_by_sw_if_index, - sw_if_index, ~0); - vec_validate_init_empty (am->acl_ip6_input_classify_table_by_sw_if_index, - sw_if_index, ~0); - vec_validate_init_empty (am->acl_dot1q_input_classify_table_by_sw_if_index, - sw_if_index, ~0); - vec_validate_init_empty (am->acl_dot1ad_input_classify_table_by_sw_if_index, - sw_if_index, ~0); - vec_validate_init_empty (am->acl_etype_input_classify_table_by_sw_if_index, - sw_if_index, ~0); - - /* switch to global heap while calling vnet_* functions */ - clib_mem_set_heap (cm->vlib_main->heap_base); - vnet_l2_input_classify_enable_disable (sw_if_index, 0); - - if (am->acl_ip4_input_classify_table_by_sw_if_index[sw_if_index] != ~0) - { - ip4_table_index = - am->acl_ip4_input_classify_table_by_sw_if_index[sw_if_index]; - am->acl_ip4_input_classify_table_by_sw_if_index[sw_if_index] = ~0; - acl_classify_add_del_table_tiny (cm, ip4_5tuple_mask, - sizeof (ip4_5tuple_mask) - 1, ~0, - am->l2_input_classify_next_acl_ip4, - &ip4_table_index, 0); - } - if (am->acl_ip6_input_classify_table_by_sw_if_index[sw_if_index] != ~0) - { - ip6_table_index = - am->acl_ip6_input_classify_table_by_sw_if_index[sw_if_index]; - am->acl_ip6_input_classify_table_by_sw_if_index[sw_if_index] = ~0; - acl_classify_add_del_table_tiny (cm, ip6_5tuple_mask, - sizeof (ip6_5tuple_mask) - 1, ~0, - am->l2_input_classify_next_acl_ip6, - &ip6_table_index, 0); - } - if (am->acl_dot1q_input_classify_table_by_sw_if_index[sw_if_index] != ~0) - { - dot1q_table_index = - am->acl_dot1q_input_classify_table_by_sw_if_index[sw_if_index]; - am->acl_dot1q_input_classify_table_by_sw_if_index[sw_if_index] = ~0; - acl_classify_add_del_table_tiny (cm, ip6_5tuple_mask, - sizeof (ip6_5tuple_mask) - 1, ~0, - ~0, &dot1q_table_index, 0); - } - if (am->acl_dot1ad_input_classify_table_by_sw_if_index[sw_if_index] != ~0) - { - dot1ad_table_index = - am->acl_dot1ad_input_classify_table_by_sw_if_index[sw_if_index]; - am->acl_dot1ad_input_classify_table_by_sw_if_index[sw_if_index] = ~0; - acl_classify_add_del_table_tiny (cm, dot1ad_5tuple_mask, - sizeof (dot1ad_5tuple_mask) - 1, ~0, - ~0, &dot1ad_table_index, 0); - } - if (am->acl_etype_input_classify_table_by_sw_if_index[sw_if_index] != ~0) - { - etype_table_index = - am->acl_etype_input_classify_table_by_sw_if_index[sw_if_index]; - am->acl_etype_input_classify_table_by_sw_if_index[sw_if_index] = ~0; - acl_classify_add_del_table_tiny (cm, ethertype_mask, - sizeof (ethertype_mask) - 1, ~0, - ~0, &etype_table_index, 0); - } - clib_mem_set_heap (oldheap); - return 0; -} - -static int -acl_unhook_l2_output_classify (acl_main_t * am, u32 sw_if_index) -{ - vnet_classify_main_t *cm = &vnet_classify_main; - u32 ip4_table_index = ~0; - u32 ip6_table_index = ~0; - u32 dot1q_table_index = ~0; - u32 dot1ad_table_index = ~0; - u32 etype_table_index = ~0; - void *oldheap = acl_set_heap (am); - - vec_validate_init_empty (am->acl_ip4_output_classify_table_by_sw_if_index, - sw_if_index, ~0); - vec_validate_init_empty (am->acl_ip6_output_classify_table_by_sw_if_index, - sw_if_index, ~0); - vec_validate_init_empty (am->acl_dot1q_output_classify_table_by_sw_if_index, - sw_if_index, ~0); - vec_validate_init_empty - (am->acl_dot1ad_output_classify_table_by_sw_if_index, sw_if_index, ~0); - vec_validate_init_empty (am->acl_etype_output_classify_table_by_sw_if_index, - sw_if_index, ~0); - - /* switch to global heap while calling vnet_* functions */ - clib_mem_set_heap (cm->vlib_main->heap_base); - - vnet_l2_output_classify_enable_disable (sw_if_index, 0); - - if (am->acl_ip4_output_classify_table_by_sw_if_index[sw_if_index] != ~0) - { - ip4_table_index = - am->acl_ip4_output_classify_table_by_sw_if_index[sw_if_index]; - am->acl_ip4_output_classify_table_by_sw_if_index[sw_if_index] = ~0; - acl_classify_add_del_table_tiny (cm, ip4_5tuple_mask, - sizeof (ip4_5tuple_mask) - 1, ~0, - am->l2_output_classify_next_acl_ip4, - &ip4_table_index, 0); - } - if (am->acl_ip6_output_classify_table_by_sw_if_index[sw_if_index] != ~0) - { - ip6_table_index = - am->acl_ip6_output_classify_table_by_sw_if_index[sw_if_index]; - am->acl_ip6_output_classify_table_by_sw_if_index[sw_if_index] = ~0; - acl_classify_add_del_table_tiny (cm, ip6_5tuple_mask, - sizeof (ip6_5tuple_mask) - 1, ~0, - am->l2_output_classify_next_acl_ip6, - &ip6_table_index, 0); - } - if (am->acl_dot1q_output_classify_table_by_sw_if_index[sw_if_index] != ~0) - { - dot1q_table_index = - am->acl_dot1q_output_classify_table_by_sw_if_index[sw_if_index]; - am->acl_dot1q_output_classify_table_by_sw_if_index[sw_if_index] = ~0; - acl_classify_add_del_table_tiny (cm, ip6_5tuple_mask, - sizeof (ip6_5tuple_mask) - 1, ~0, - ~0, &dot1q_table_index, 0); - } - if (am->acl_dot1ad_output_classify_table_by_sw_if_index[sw_if_index] != ~0) - { - dot1ad_table_index = - am->acl_dot1ad_output_classify_table_by_sw_if_index[sw_if_index]; - am->acl_dot1ad_output_classify_table_by_sw_if_index[sw_if_index] = ~0; - acl_classify_add_del_table_tiny (cm, dot1ad_5tuple_mask, - sizeof (dot1ad_5tuple_mask) - 1, ~0, - ~0, &dot1ad_table_index, 0); - } - if (am->acl_etype_output_classify_table_by_sw_if_index[sw_if_index] != ~0) - { - etype_table_index = - am->acl_etype_output_classify_table_by_sw_if_index[sw_if_index]; - am->acl_etype_output_classify_table_by_sw_if_index[sw_if_index] = ~0; - acl_classify_add_del_table_tiny (cm, ethertype_mask, - sizeof (ethertype_mask) - 1, ~0, - ~0, &etype_table_index, 0); - } - clib_mem_set_heap (oldheap); - return 0; -} - -static void -acl_add_vlan_session (acl_main_t * am, u32 table_index, u8 is_output, - u8 is_dot1ad, u8 is_ip6) -{ - vnet_classify_main_t *cm = &vnet_classify_main; - u8 *match; - u32 next_acl; - u8 idx; - u8 session_idx; - - if (is_ip6) - { - next_acl = - (is_output) ? am-> - l2_output_classify_next_acl_ip6 : am->l2_input_classify_next_acl_ip6; - } - else - { - next_acl = - (is_output) ? am-> - l2_output_classify_next_acl_ip4 : am->l2_input_classify_next_acl_ip4; - } - match = (is_dot1ad) ? dot1ad_5tuple_mask : dot1q_5tuple_mask; - idx = (is_dot1ad) ? 20 : 16; - if (is_dot1ad) - { - /* 802.1ad ethertype */ - match[12] = 0x88; - match[13] = 0xa8; - /* 802.1q ethertype */ - match[16] = 0x81; - match[17] = 0x00; - } - else - { - /* 802.1q ethertype */ - match[12] = 0x81; - match[13] = 0x00; - } - - /* add sessions to vlan tables per ethernet_type */ - if (is_ip6) - { - match[idx] = 0x86; - match[idx + 1] = 0xdd; - session_idx = 1; - } - else - { - match[idx] = 0x08; - match[idx + 1] = 0x00; - session_idx = 0; - } - vnet_classify_add_del_session (cm, table_index, match, next_acl, - session_idx, 0, 0, 0, 1); - /* reset the mask back to being a mask */ - match[idx] = 0xff; - match[idx + 1] = 0xff; - match[12] = 0xff; - match[13] = 0xff; - if (is_dot1ad) - { - match[16] = 0xff; - match[17] = 0xff; - } -} - -static int intf_has_etype_whitelist (acl_main_t * am, u32 sw_if_index, int is_input) { u16 **v = is_input ? am->input_etype_whitelist_by_sw_if_index : am->output_etype_whitelist_by_sw_if_index; - return ((vec_len (v) > sw_if_index) && vec_elt (v, sw_if_index)); -} - -static int -etype_whitelist_add_sessions (acl_main_t * am, u32 sw_if_index, int is_input, - u32 etype_table_index) -{ - vnet_classify_main_t *cm = &vnet_classify_main; - u16 **v = is_input - ? am->input_etype_whitelist_by_sw_if_index - : am->output_etype_whitelist_by_sw_if_index; - u8 *match = ethertype_mask; - - int i; - int rv = 0; - u16 *whitelist = vec_elt (v, sw_if_index); - u32 next = ~0; /* permit */ - for (i = 0; i < vec_len (whitelist); i++) - { - /* big-endian */ - match[12] = (whitelist[i] >> 8) & 0xff; - match[13] = whitelist[i] & 0xff; - rv = rv - || vnet_classify_add_del_session (cm, etype_table_index, match, next, - whitelist[i], 0, 0, 0, 1); - } - - /* restore the mask */ - match[12] = 0xff; - match[13] = 0xff; - return rv; -} - -static int -acl_hook_l2_input_classify (acl_main_t * am, u32 sw_if_index) -{ - vnet_classify_main_t *cm = &vnet_classify_main; - u32 ip4_table_index = ~0; - u32 ip6_table_index = ~0; - u32 dot1q_table_index = ~0; - u32 dot1ad_table_index = ~0; - u32 etype_table_index = ~0; - int rv; - - void *prevheap = clib_mem_set_heap (cm->vlib_main->heap_base); - - /* in case there were previous tables attached */ - acl_unhook_l2_input_classify (am, sw_if_index); - rv = - acl_classify_add_del_table_tiny (cm, ip4_5tuple_mask, - sizeof (ip4_5tuple_mask) - 1, ~0, - am->l2_input_classify_next_acl_ip4, - &ip4_table_index, 1); - if (rv) - goto done; - - rv = - acl_classify_add_del_table_tiny (cm, ip6_5tuple_mask, - sizeof (ip6_5tuple_mask) - 1, ~0, - am->l2_input_classify_next_acl_ip6, - &ip6_table_index, 1); - if (rv) - { - acl_classify_add_del_table_tiny (cm, ip4_5tuple_mask, - sizeof (ip4_5tuple_mask) - 1, ~0, - am->l2_input_classify_next_acl_ip4, - &ip4_table_index, 0); - goto done; - } - - if (intf_has_etype_whitelist (am, sw_if_index, 1)) - { - acl_classify_add_del_table_tiny (cm, ethertype_mask, sizeof (ethertype_mask) - 1, ~0, 0, /* drop if no match */ - &etype_table_index, 1); - etype_whitelist_add_sessions (am, sw_if_index, 1, etype_table_index); - } - - rv = - acl_classify_add_del_table_tiny (cm, dot1ad_5tuple_mask, - sizeof (dot1ad_5tuple_mask) - 1, - etype_table_index, ~0, - &dot1ad_table_index, 1); - rv = - acl_classify_add_del_table_tiny (cm, dot1q_5tuple_mask, - sizeof (dot1q_5tuple_mask) - 1, - dot1ad_table_index, ~0, - &dot1q_table_index, 1); - if (rv) - { - acl_classify_add_del_table_tiny (cm, dot1ad_5tuple_mask, - sizeof (dot1ad_5tuple_mask) - 1, ~0, - ~0, &dot1ad_table_index, 0); - acl_classify_add_del_table_tiny (cm, ip6_5tuple_mask, - sizeof (ip6_5tuple_mask) - 1, ~0, - am->l2_input_classify_next_acl_ip6, - &ip6_table_index, 0); - acl_classify_add_del_table_tiny (cm, ip4_5tuple_mask, - sizeof (ip4_5tuple_mask) - 1, ~0, - am->l2_input_classify_next_acl_ip4, - &ip4_table_index, 0); - goto done; - } - - rv = - vnet_l2_input_classify_set_tables (sw_if_index, ip4_table_index, - ip6_table_index, dot1q_table_index); - - if (rv) - { - acl_classify_add_del_table_tiny (cm, ip4_5tuple_mask, - sizeof (ip4_5tuple_mask) - 1, ~0, - am->l2_input_classify_next_acl_ip4, - &ip4_table_index, 0); - acl_classify_add_del_table_tiny (cm, ip6_5tuple_mask, - sizeof (ip6_5tuple_mask) - 1, ~0, - am->l2_input_classify_next_acl_ip6, - &ip6_table_index, 0); - acl_classify_add_del_table_tiny (cm, dot1q_5tuple_mask, - sizeof (dot1q_5tuple_mask) - 1, ~0, - ~0, &dot1q_table_index, 0); - acl_classify_add_del_table_tiny (cm, dot1ad_5tuple_mask, - sizeof (dot1ad_5tuple_mask) - 1, ~0, - ~0, &dot1ad_table_index, 0); - goto done; - } - - /* add sessions to vlan tables per ethernet_type */ - acl_add_vlan_session (am, dot1q_table_index, 0, 0, 0); - acl_add_vlan_session (am, dot1q_table_index, 0, 0, 1); - acl_add_vlan_session (am, dot1ad_table_index, 0, 1, 0); - acl_add_vlan_session (am, dot1ad_table_index, 0, 1, 1); - - am->acl_ip4_input_classify_table_by_sw_if_index[sw_if_index] = - ip4_table_index; - am->acl_ip6_input_classify_table_by_sw_if_index[sw_if_index] = - ip6_table_index; - am->acl_dot1q_input_classify_table_by_sw_if_index[sw_if_index] = - dot1q_table_index; - am->acl_dot1ad_input_classify_table_by_sw_if_index[sw_if_index] = - dot1ad_table_index; - am->acl_dot1ad_input_classify_table_by_sw_if_index[sw_if_index] = - dot1ad_table_index; - am->acl_etype_input_classify_table_by_sw_if_index[sw_if_index] = - etype_table_index; - - vnet_l2_input_classify_enable_disable (sw_if_index, 1); -done: - clib_mem_set_heap (prevheap); - return rv; -} - -static int -acl_hook_l2_output_classify (acl_main_t * am, u32 sw_if_index) -{ - vnet_classify_main_t *cm = &vnet_classify_main; - u32 ip4_table_index = ~0; - u32 ip6_table_index = ~0; - u32 dot1q_table_index = ~0; - u32 dot1ad_table_index = ~0; - u32 etype_table_index = ~0; - int rv; - - void *prevheap = clib_mem_set_heap (cm->vlib_main->heap_base); - - /* in case there were previous tables attached */ - acl_unhook_l2_output_classify (am, sw_if_index); - rv = - acl_classify_add_del_table_tiny (cm, ip4_5tuple_mask, - sizeof (ip4_5tuple_mask) - 1, ~0, - am->l2_output_classify_next_acl_ip4, - &ip4_table_index, 1); - if (rv) - goto done; - rv = - acl_classify_add_del_table_tiny (cm, ip6_5tuple_mask, - sizeof (ip6_5tuple_mask) - 1, ~0, - am->l2_output_classify_next_acl_ip6, - &ip6_table_index, 1); - if (rv) - { - acl_classify_add_del_table_tiny (cm, ip4_5tuple_mask, - sizeof (ip4_5tuple_mask) - 1, ~0, - am->l2_output_classify_next_acl_ip4, - &ip4_table_index, 0); - goto done; - } - - if (intf_has_etype_whitelist (am, sw_if_index, 0)) - { - acl_classify_add_del_table_tiny (cm, ethertype_mask, sizeof (ethertype_mask) - 1, ~0, 0, /* drop if no match */ - &etype_table_index, 1); - etype_whitelist_add_sessions (am, sw_if_index, 0, etype_table_index); - } - - - rv = - acl_classify_add_del_table_tiny (cm, dot1ad_5tuple_mask, - sizeof (dot1ad_5tuple_mask) - 1, - etype_table_index, ~0, - &dot1ad_table_index, 1); - rv = - acl_classify_add_del_table_tiny (cm, dot1q_5tuple_mask, - sizeof (dot1q_5tuple_mask) - 1, - dot1ad_table_index, ~0, - &dot1q_table_index, 1); - if (rv) - { - acl_classify_add_del_table_tiny (cm, dot1ad_5tuple_mask, - sizeof (dot1ad_5tuple_mask) - 1, ~0, - ~0, &dot1ad_table_index, 0); - acl_classify_add_del_table_tiny (cm, ip6_5tuple_mask, - sizeof (ip6_5tuple_mask) - 1, ~0, - am->l2_output_classify_next_acl_ip6, - &ip6_table_index, 0); - acl_classify_add_del_table_tiny (cm, ip4_5tuple_mask, - sizeof (ip4_5tuple_mask) - 1, ~0, - am->l2_output_classify_next_acl_ip4, - &ip4_table_index, 0); - goto done; - } - - rv = - vnet_l2_output_classify_set_tables (sw_if_index, ip4_table_index, - ip6_table_index, dot1q_table_index); -/* - clib_warning - ("ACL enabling on interface sw_if_index %d, setting tables to the following: ip4: %d ip6: %d\n", - sw_if_index, ip4_table_index, ip6_table_index); -*/ - if (rv) - { - acl_classify_add_del_table_tiny (cm, ip6_5tuple_mask, - sizeof (ip6_5tuple_mask) - 1, ~0, - am->l2_output_classify_next_acl_ip6, - &ip6_table_index, 0); - acl_classify_add_del_table_tiny (cm, ip4_5tuple_mask, - sizeof (ip4_5tuple_mask) - 1, ~0, - am->l2_output_classify_next_acl_ip4, - &ip4_table_index, 0); - acl_classify_add_del_table_tiny (cm, dot1q_5tuple_mask, - sizeof (dot1q_5tuple_mask) - 1, ~0, - ~0, &dot1q_table_index, 0); - acl_classify_add_del_table_tiny (cm, dot1ad_5tuple_mask, - sizeof (dot1ad_5tuple_mask) - 1, ~0, - ~0, &dot1ad_table_index, 0); - goto done; - } - - /* add sessions to vlan tables per ethernet_type */ - acl_add_vlan_session (am, dot1q_table_index, 1, 0, 0); - acl_add_vlan_session (am, dot1q_table_index, 1, 0, 1); - acl_add_vlan_session (am, dot1ad_table_index, 1, 1, 0); - acl_add_vlan_session (am, dot1ad_table_index, 1, 1, 1); - - am->acl_ip4_output_classify_table_by_sw_if_index[sw_if_index] = - ip4_table_index; - am->acl_ip6_output_classify_table_by_sw_if_index[sw_if_index] = - ip6_table_index; - am->acl_dot1q_output_classify_table_by_sw_if_index[sw_if_index] = - dot1q_table_index; - am->acl_dot1ad_output_classify_table_by_sw_if_index[sw_if_index] = - dot1ad_table_index; - am->acl_etype_output_classify_table_by_sw_if_index[sw_if_index] = - etype_table_index; - - vnet_l2_output_classify_enable_disable (sw_if_index, 1); -done: - clib_mem_set_heap (prevheap); - return rv; + u16 *whitelist = (vec_len (v) > sw_if_index) ? vec_elt (v, sw_if_index) : 0; + return vec_len (whitelist) > 0; } static void @@ -1166,14 +571,22 @@ acl_interface_in_enable_disable (acl_main_t * am, u32 sw_if_index, acl_fa_enable_disable (sw_if_index, 1, enable_disable); - if (enable_disable) - { - rv = acl_hook_l2_input_classify (am, sw_if_index); - } - else - { - rv = acl_unhook_l2_input_classify (am, sw_if_index); - } + void *oldheap = clib_mem_set_heap (am->vlib_main->heap_base); + rv = vnet_l2_feature_enable_disable ("l2-input-ip4", "acl-plugin-in-ip4-l2", + sw_if_index, enable_disable, 0, 0); + if (rv) + clib_error ("Could not enable on input"); + rv = vnet_l2_feature_enable_disable ("l2-input-ip6", "acl-plugin-in-ip6-l2", + sw_if_index, enable_disable, 0, 0); + if (rv) + clib_error ("Could not enable on input"); + + if (intf_has_etype_whitelist (am, sw_if_index, 1)) + vnet_l2_feature_enable_disable ("l2-input-nonip", + "acl-plugin-in-nonip-l2", sw_if_index, + enable_disable, 0, 0); + + clib_mem_set_heap (oldheap); am->in_acl_on_sw_if_index = clib_bitmap_set (am->in_acl_on_sw_if_index, sw_if_index, enable_disable); @@ -1185,7 +598,7 @@ static int acl_interface_out_enable_disable (acl_main_t * am, u32 sw_if_index, int enable_disable) { - int rv; + int rv = 0; /* Utterly wrong? */ if (pool_is_free_index (am->vnet_main->interface_main.sw_interfaces, @@ -1198,14 +611,24 @@ acl_interface_out_enable_disable (acl_main_t * am, u32 sw_if_index, acl_fa_enable_disable (sw_if_index, 0, enable_disable); - if (enable_disable) - { - rv = acl_hook_l2_output_classify (am, sw_if_index); - } - else - { - rv = acl_unhook_l2_output_classify (am, sw_if_index); - } + void *oldheap = clib_mem_set_heap (am->vlib_main->heap_base); + rv = + vnet_l2_feature_enable_disable ("l2-output-ip4", "acl-plugin-out-ip4-l2", + sw_if_index, enable_disable, 0, 0); + if (rv) + clib_error ("Could not enable on output"); + rv = + vnet_l2_feature_enable_disable ("l2-output-ip6", "acl-plugin-out-ip6-l2", + sw_if_index, enable_disable, 0, 0); + if (rv) + clib_error ("Could not enable on output"); + if (intf_has_etype_whitelist (am, sw_if_index, 0)) + vnet_l2_feature_enable_disable ("l2-output-nonip", + "acl-plugin-out-nonip-l2", sw_if_index, + enable_disable, 0, 0); + + + clib_mem_set_heap (oldheap); am->out_acl_on_sw_if_index = clib_bitmap_set (am->out_acl_on_sw_if_index, sw_if_index, enable_disable); @@ -3115,50 +2538,6 @@ setup_message_id_table (acl_main_t * am, api_main_t * apim) } static void -acl_setup_fa_nodes (void) -{ - vlib_main_t *vm = vlib_get_main (); - acl_main_t *am = &acl_main; - vlib_node_t *n, *n4, *n6; - - n = vlib_get_node_by_name (vm, (u8 *) "l2-input-classify"); - n4 = vlib_get_node_by_name (vm, (u8 *) "acl-plugin-in-ip4-l2"); - n6 = vlib_get_node_by_name (vm, (u8 *) "acl-plugin-in-ip6-l2"); - - - am->l2_input_classify_next_acl_ip4 = - vlib_node_add_next_with_slot (vm, n->index, n4->index, ~0); - am->l2_input_classify_next_acl_ip6 = - vlib_node_add_next_with_slot (vm, n->index, n6->index, ~0); - - feat_bitmap_init_next_nodes (vm, n4->index, L2INPUT_N_FEAT, - l2input_get_feat_names (), - am->fa_acl_in_ip4_l2_node_feat_next_node_index); - - feat_bitmap_init_next_nodes (vm, n6->index, L2INPUT_N_FEAT, - l2input_get_feat_names (), - am->fa_acl_in_ip6_l2_node_feat_next_node_index); - - - n = vlib_get_node_by_name (vm, (u8 *) "l2-output-classify"); - n4 = vlib_get_node_by_name (vm, (u8 *) "acl-plugin-out-ip4-l2"); - n6 = vlib_get_node_by_name (vm, (u8 *) "acl-plugin-out-ip6-l2"); - - am->l2_output_classify_next_acl_ip4 = - vlib_node_add_next_with_slot (vm, n->index, n4->index, ~0); - am->l2_output_classify_next_acl_ip6 = - vlib_node_add_next_with_slot (vm, n->index, n6->index, ~0); - - feat_bitmap_init_next_nodes (vm, n4->index, L2OUTPUT_N_FEAT, - l2output_get_feat_names (), - am->fa_acl_out_ip4_l2_node_feat_next_node_index); - - feat_bitmap_init_next_nodes (vm, n6->index, L2OUTPUT_N_FEAT, - l2output_get_feat_names (), - am->fa_acl_out_ip6_l2_node_feat_next_node_index); -} - -static void acl_set_timeout_sec (int timeout_type, u32 value) { acl_main_t *am = &acl_main; @@ -4180,8 +3559,6 @@ acl_init (vlib_main_t * vm) if (error) return error; - acl_setup_fa_nodes (); - am->acl_mheap_size = 0; /* auto size when initializing */ am->hash_lookup_mheap_size = ACL_PLUGIN_HASH_LOOKUP_HEAP_SIZE; diff --git a/src/plugins/acl/acl.h b/src/plugins/acl/acl.h index c17946a9719..1d1ee442304 100644 --- a/src/plugins/acl/acl.h +++ b/src/plugins/acl/acl.h @@ -251,19 +251,6 @@ typedef struct { /* how many sessions went into purgatory */ u64 fa_session_total_deactivations; - /* L2 datapath glue */ - - /* next indices within L2 classifiers for ip4/ip6 fa L2 nodes */ - u32 l2_input_classify_next_acl_ip4; - u32 l2_input_classify_next_acl_ip6; - u32 l2_output_classify_next_acl_ip4; - u32 l2_output_classify_next_acl_ip6; - /* next node indices for L2 dispatch */ - u32 fa_acl_in_ip4_l2_node_feat_next_node_index[32]; - u32 fa_acl_in_ip6_l2_node_feat_next_node_index[32]; - u32 fa_acl_out_ip4_l2_node_feat_next_node_index[32]; - u32 fa_acl_out_ip6_l2_node_feat_next_node_index[32]; - /* EH values that we can skip over */ uword *fa_ipv6_known_eh_bitmap; diff --git a/src/plugins/acl/dataplane_node.c b/src/plugins/acl/dataplane_node.c index 79ee5010c26..fef355138e0 100644 --- a/src/plugins/acl/dataplane_node.c +++ b/src/plugins/acl/dataplane_node.c @@ -66,6 +66,232 @@ typedef enum /* *INDENT-ON* */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u16 ethertype; +} nonip_in_out_trace_t; + +/* packet trace format function */ +static u8 * +format_nonip_in_out_trace (u8 * s, u32 is_output, 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 *); + nonip_in_out_trace_t *t = va_arg (*args, nonip_in_out_trace_t *); + + s = format (s, "%s: sw_if_index %d next_index %x ethertype %x", + is_output ? "OUT-ETHER-WHITELIST" : "IN-ETHER-WHITELIST", + t->sw_if_index, t->next_index, t->ethertype); + return s; +} + +static u8 * +format_l2_nonip_in_trace (u8 * s, va_list * args) +{ + return format_nonip_in_out_trace (s, 0, args); +} + +static u8 * +format_l2_nonip_out_trace (u8 * s, va_list * args) +{ + return format_nonip_in_out_trace (s, 1, args); +} + +#define foreach_nonip_in_error \ +_(DROP, "dropped inbound non-whitelisted non-ip packets") \ +_(PERMIT, "permitted inbound whitelisted non-ip packets") \ + + +#define foreach_nonip_out_error \ +_(DROP, "dropped outbound non-whitelisted non-ip packets") \ +_(PERMIT, "permitted outbound whitelisted non-ip packets") \ + + +/* *INDENT-OFF* */ + +typedef enum +{ +#define _(sym,str) FA_IN_NONIP_ERROR_##sym, + foreach_nonip_in_error +#undef _ + FA_IN_NONIP_N_ERROR, +} l2_in_feat_arc_error_t; + +static char *fa_in_nonip_error_strings[] = { +#define _(sym,string) string, + foreach_nonip_in_error +#undef _ +}; + +typedef enum +{ +#define _(sym,str) FA_OUT_NONIP_ERROR_##sym, + foreach_nonip_out_error +#undef _ + FA_OUT_NONIP_N_ERROR, +} l2_out_feat_arc_error_t; + +static char *fa_out_nonip_error_strings[] = { +#define _(sym,string) string, + foreach_nonip_out_error +#undef _ +}; +/* *INDENT-ON* */ + + +always_inline int +is_permitted_ethertype (acl_main_t * am, int sw_if_index0, int is_output, + u16 ethertype) +{ + u16 **v = is_output + ? am->output_etype_whitelist_by_sw_if_index + : am->input_etype_whitelist_by_sw_if_index; + u16 *whitelist = vec_elt (v, sw_if_index0); + int i; + + if (vec_len (whitelist) == 0) + return 1; + + for (i = 0; i < vec_len (whitelist); i++) + if (whitelist[i] == ethertype) + return 1; + return 0; +} + +#define get_u16(addr) ( *((u16 *)(addr)) ) + +always_inline uword +nonip_in_out_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, vlib_frame_t * frame, + int is_output, vlib_node_registration_t * fa_node) +{ + acl_main_t *am = &acl_main; + u32 n_left, *from; + u16 nexts[VLIB_FRAME_SIZE], *next; + vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b; + vlib_node_runtime_t *error_node; + + from = vlib_frame_vector_args (frame); + error_node = vlib_node_get_runtime (vm, fa_node->index); + vlib_get_buffers (vm, from, bufs, frame->n_vectors); + /* set the initial values for the current buffer the next pointers */ + b = bufs; + next = nexts; + + n_left = frame->n_vectors; + while (n_left > 0) + { + u32 next_index = 0; + u32 sw_if_index0 = + vnet_buffer (b[0])->sw_if_index[is_output ? VLIB_TX : VLIB_RX]; + u16 ethertype = 0; + + int error0 = 0; + + ethernet_header_t *h0 = vlib_buffer_get_current (b[0]); + u8 *l3h0 = (u8 *) h0 + vnet_buffer (b[0])->l2.l2_len; + ethertype = clib_net_to_host_u16 (get_u16 (l3h0 - 2)); + + if (is_permitted_ethertype (am, sw_if_index0, is_output, ethertype)) + vnet_feature_next (&next_index, b[0]); + + next[0] = next_index; + + if (0 == next[0]) + b[0]->error = error_node->errors[error0]; + + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) + && (b[0]->flags & VLIB_BUFFER_IS_TRACED))) + { + nonip_in_out_trace_t *t = + vlib_add_trace (vm, node, b[0], sizeof (*t)); + t->sw_if_index = sw_if_index0; + t->ethertype = ethertype; + t->next_index = next[0]; + } + next[0] = next[0] < node->n_next_nodes ? next[0] : 0; + + next++; + b++; + n_left--; + } + vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors); + + return frame->n_vectors; +} + +vlib_node_registration_t acl_in_nonip_node; +VLIB_NODE_FN (acl_in_nonip_node) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return nonip_in_out_node_fn (vm, node, frame, 0, &acl_in_nonip_node); +} + +vlib_node_registration_t acl_out_nonip_node; +VLIB_NODE_FN (acl_out_nonip_node) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return nonip_in_out_node_fn (vm, node, frame, 1, &acl_in_nonip_node); +} + + +/* *INDENT-OFF* */ + +VLIB_NODE_FUNCTION_MULTIARCH (acl_in_nonip_node, acl_in_nonip_node_fn) +VLIB_NODE_FUNCTION_MULTIARCH (acl_out_nonip_node, acl_out_nonip_node_fn) + +VLIB_REGISTER_NODE (acl_in_nonip_node) = +{ + .name = "acl-plugin-in-nonip-l2", + .vector_size = sizeof (u32), + .format_trace = format_l2_nonip_in_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (fa_in_nonip_error_strings), + .error_strings = fa_in_nonip_error_strings, + .n_next_nodes = ACL_FA_N_NEXT, + .next_nodes = + { + [ACL_FA_ERROR_DROP] = "error-drop", + } +}; + +VNET_FEATURE_INIT (acl_in_l2_nonip_fa_feature, static) = +{ + .arc_name = "l2-input-nonip", + .node_name = "acl-plugin-in-nonip-l2", + .runs_before = VNET_FEATURES ("l2-input-feat-arc-end"), +}; + +VLIB_REGISTER_NODE (acl_out_nonip_node) = +{ + .name = "acl-plugin-out-nonip-l2", + .vector_size = sizeof (u32), + .format_trace = format_l2_nonip_out_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (fa_out_nonip_error_strings), + .error_strings = fa_out_nonip_error_strings, + .n_next_nodes = ACL_FA_N_NEXT, + .next_nodes = + { + [ACL_FA_ERROR_DROP] = "error-drop", + } +}; + +VNET_FEATURE_INIT (acl_out_l2_nonip_fa_feature, static) = +{ + .arc_name = "l2-output-nonip", + .node_name = "acl-plugin-out-nonip-l2", + .runs_before = VNET_FEATURES ("l2-output-feat-arc-end"), +}; + +/* *INDENT-ON* */ + + + always_inline u16 get_current_policy_epoch (acl_main_t * am, int is_input, u32 sw_if_index0) { @@ -82,7 +308,7 @@ get_current_policy_epoch (acl_main_t * am, int is_input, u32 sw_if_index0) always_inline uword acl_fa_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame, int is_ip6, - int is_input, int is_l2_path, u32 * l2_feat_next_node_index, + int is_input, int is_l2_path, vlib_node_registration_t * acl_fa_node) { u32 n_left, *from; @@ -278,10 +504,7 @@ acl_fa_node_fn (vlib_main_t * vm, if (action > 0) { - if (is_l2_path) - next0 = vnet_l2_feature_next (b[0], l2_feat_next_node_index, 0); - else - vnet_feature_next (&next0, b[0]); + vnet_feature_next (&next0, b[0]); } #ifdef FA_NODE_VERBOSE_DEBUG clib_warning @@ -342,10 +565,7 @@ VLIB_NODE_FN (acl_in_l2_ip6_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { - acl_main_t *am = &acl_main; - return acl_fa_node_fn (vm, node, frame, 1, 1, 1, - am->fa_acl_in_ip6_l2_node_feat_next_node_index, - &acl_in_l2_ip6_node); + return acl_fa_node_fn (vm, node, frame, 1, 1, 1, &acl_in_l2_ip6_node); } vlib_node_registration_t acl_in_l2_ip4_node; @@ -353,10 +573,7 @@ VLIB_NODE_FN (acl_in_l2_ip4_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { - acl_main_t *am = &acl_main; - return acl_fa_node_fn (vm, node, frame, 0, 1, 1, - am->fa_acl_in_ip4_l2_node_feat_next_node_index, - &acl_in_l2_ip4_node); + return acl_fa_node_fn (vm, node, frame, 0, 1, 1, &acl_in_l2_ip4_node); } vlib_node_registration_t acl_out_l2_ip6_node; @@ -364,10 +581,7 @@ VLIB_NODE_FN (acl_out_l2_ip6_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { - acl_main_t *am = &acl_main; - return acl_fa_node_fn (vm, node, frame, 1, 0, 1, - am->fa_acl_out_ip6_l2_node_feat_next_node_index, - &acl_out_l2_ip6_node); + return acl_fa_node_fn (vm, node, frame, 1, 0, 1, &acl_out_l2_ip6_node); } vlib_node_registration_t acl_out_l2_ip4_node; @@ -375,10 +589,7 @@ VLIB_NODE_FN (acl_out_l2_ip4_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { - acl_main_t *am = &acl_main; - return acl_fa_node_fn (vm, node, frame, 0, 0, 1, - am->fa_acl_out_ip4_l2_node_feat_next_node_index, - &acl_out_l2_ip4_node); + return acl_fa_node_fn (vm, node, frame, 0, 0, 1, &acl_out_l2_ip4_node); } /**** L3 processing path nodes ****/ @@ -388,7 +599,7 @@ VLIB_NODE_FN (acl_in_fa_ip6_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { - return acl_fa_node_fn (vm, node, frame, 1, 1, 0, 0, &acl_in_fa_ip6_node); + return acl_fa_node_fn (vm, node, frame, 1, 1, 0, &acl_in_fa_ip6_node); } vlib_node_registration_t acl_in_fa_ip4_node; @@ -396,7 +607,7 @@ VLIB_NODE_FN (acl_in_fa_ip4_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { - return acl_fa_node_fn (vm, node, frame, 0, 1, 0, 0, &acl_in_fa_ip4_node); + return acl_fa_node_fn (vm, node, frame, 0, 1, 0, &acl_in_fa_ip4_node); } vlib_node_registration_t acl_out_fa_ip6_node; @@ -404,7 +615,7 @@ VLIB_NODE_FN (acl_out_fa_ip6_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { - return acl_fa_node_fn (vm, node, frame, 1, 0, 0, 0, &acl_out_fa_ip6_node); + return acl_fa_node_fn (vm, node, frame, 1, 0, 0, &acl_out_fa_ip6_node); } vlib_node_registration_t acl_out_fa_ip4_node; @@ -412,7 +623,7 @@ VLIB_NODE_FN (acl_out_fa_ip4_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { - return acl_fa_node_fn (vm, node, frame, 0, 0, 0, 0, &acl_out_fa_ip4_node); + return acl_fa_node_fn (vm, node, frame, 0, 0, 0, &acl_out_fa_ip4_node); } static u8 * @@ -499,6 +710,13 @@ VLIB_REGISTER_NODE (acl_in_l2_ip6_node) = } }; +VNET_FEATURE_INIT (acl_in_l2_ip6_fa_feature, static) = +{ + .arc_name = "l2-input-ip6", + .node_name = "acl-plugin-in-ip6-l2", + .runs_before = VNET_FEATURES ("l2-input-feat-arc-end"), +}; + VLIB_REGISTER_NODE (acl_in_l2_ip4_node) = { .name = "acl-plugin-in-ip4-l2", @@ -514,6 +732,14 @@ VLIB_REGISTER_NODE (acl_in_l2_ip4_node) = } }; +VNET_FEATURE_INIT (acl_in_l2_ip4_fa_feature, static) = +{ + .arc_name = "l2-input-ip4", + .node_name = "acl-plugin-in-ip4-l2", + .runs_before = VNET_FEATURES ("l2-input-feat-arc-end"), +}; + + VLIB_REGISTER_NODE (acl_out_l2_ip6_node) = { .name = "acl-plugin-out-ip6-l2", @@ -529,6 +755,14 @@ VLIB_REGISTER_NODE (acl_out_l2_ip6_node) = } }; +VNET_FEATURE_INIT (acl_out_l2_ip6_fa_feature, static) = +{ + .arc_name = "l2-output-ip6", + .node_name = "acl-plugin-out-ip6-l2", + .runs_before = VNET_FEATURES ("l2-output-feat-arc-end"), +}; + + VLIB_REGISTER_NODE (acl_out_l2_ip4_node) = { .name = "acl-plugin-out-ip4-l2", @@ -544,6 +778,13 @@ VLIB_REGISTER_NODE (acl_out_l2_ip4_node) = } }; +VNET_FEATURE_INIT (acl_out_l2_ip4_fa_feature, static) = +{ + .arc_name = "l2-output-ip4", + .node_name = "acl-plugin-out-ip4-l2", + .runs_before = VNET_FEATURES ("l2-output-feat-arc-end"), +}; + VLIB_REGISTER_NODE (acl_in_fa_ip6_node) = { |