diff options
Diffstat (limited to 'src/plugins/igmp/igmp_format.c')
| -rw-r--r-- | src/plugins/igmp/igmp_format.c | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/src/plugins/igmp/igmp_format.c b/src/plugins/igmp/igmp_format.c new file mode 100644 index 00000000000..fb4cc997c23 --- /dev/null +++ b/src/plugins/igmp/igmp_format.c @@ -0,0 +1,159 @@ +/* + *------------------------------------------------------------------ + * Copyright (c) 2018 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 <igmp/igmp.h> +#include <vnet/ip/ip.h> + +u8 * +format_igmp_type (u8 * s, va_list * args) +{ + igmp_type_t type = va_arg (*args, igmp_type_t); + igmp_main_t *im = &igmp_main; + igmp_type_info_t *ti = igmp_get_type_info (im, type); + + if (ti) + return format (s, "%s", ti->name); + else + return format (s, "unknown %d", type); +} + +u8 * +format_igmp_report_type (u8 * s, va_list * args) +{ + igmp_membership_group_v3_type_t report_type = + va_arg (*args, igmp_membership_group_v3_type_t); + igmp_main_t *im = &igmp_main; + igmp_report_type_info_t *rti = igmp_get_report_type_info (im, report_type); + + if (rti) + return format (s, "%s", rti->name); + else + return format (s, "unknown %d", report_type); +} + +u8 * +format_igmp_header (u8 * s, va_list * args) +{ + igmp_header_t *hdr = va_arg (*args, igmp_header_t *); + u32 max_header_bytes = va_arg (*args, u32); + u32 indent; + + if (max_header_bytes < sizeof (hdr[0])) + return format (s, "IGMP header truncated"); + + indent = format_get_indent (s); + indent += 2; + + s = + format (s, "%U%U: code %u, checksum 0x%04x", format_white_space, indent, + format_igmp_type, hdr->type, hdr->code, + clib_net_to_host_u16 (hdr->checksum)); + return s; +} + +u8 * +format_igmp_report_v3 (u8 * s, va_list * args) +{ + igmp_membership_report_v3_t *igmp = + va_arg (*args, igmp_membership_report_v3_t *); + u32 max_header_bytes = va_arg (*args, u32); + igmp_membership_group_v3_t *group; + + u32 len = sizeof (igmp_membership_report_v3_t); + u32 indent; + + if (max_header_bytes < sizeof (igmp[0])) + return format (s, "IGMP report truncated"); + + indent = format_get_indent (s); + indent += 2; + + s = + format (s, "%Un_groups %u", format_white_space, indent, + clib_net_to_host_u16 (igmp->n_groups)); + indent += 2; + int i, j = 0; + for (i = 0; i < clib_net_to_host_u16 (igmp->n_groups); i++) + { + group = group_ptr (igmp, len); + s = + format (s, "\n%U%U: %U, sources %u", format_white_space, indent, + format_igmp_report_type, group->type, format_ip4_address, + &group->dst_address, + clib_net_to_host_u16 (group->n_src_addresses)); + indent += 2; + for (j = 0; j < clib_net_to_host_u16 (group->n_src_addresses); j++) + { + s = + format (s, "\n%U%U", format_white_space, indent, + format_ip4_address, &group->src_addresses[j]); + } + indent -= 2; + len += + sizeof (igmp_membership_group_v3_t) + + (sizeof (ip4_address_t) * + clib_net_to_host_u16 (group->n_src_addresses)); + } + return s; +} + +u8 * +format_igmp_query_v3 (u8 * s, va_list * args) +{ + igmp_membership_query_v3_t *igmp = + va_arg (*args, igmp_membership_query_v3_t *); + u32 max_header_bytes = va_arg (*args, u32); + u32 indent; + int i; + + if (max_header_bytes < sizeof (igmp[0])) + return format (s, "IGMP query truncated"); + + indent = format_get_indent (s); + indent += 2; + + ip4_address_t tmp; + tmp.as_u32 = 0; + + if ((!ip4_address_compare (&igmp->dst, &tmp)) + && (igmp->n_src_addresses == 0)) + s = format (s, "%UGeneral Query", format_white_space, indent); + else if (igmp->n_src_addresses == 0) + s = format (s, "%UGroup-Specific Query: %U", format_white_space, indent, + format_ip4_address, &igmp->dst); + else + { + s = + format (s, "%UGroup-and-Source-Specific Query: %U", + format_white_space, indent, format_ip4_address, &igmp->dst); + indent += 2; + for (i = 0; i < clib_net_to_host_u16 (igmp->n_src_addresses); i++) + { + s = format (s, "\n%U%U", format_white_space, indent, + format_ip4_address, &igmp->src_addresses[i]); + } + } + return s; +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |