diff options
Diffstat (limited to 'lib/fib_lookup/request.c')
| -rw-r--r-- | lib/fib_lookup/request.c | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/lib/fib_lookup/request.c b/lib/fib_lookup/request.c new file mode 100644 index 0000000..8b00224 --- /dev/null +++ b/lib/fib_lookup/request.c @@ -0,0 +1,187 @@ +/* + * lib/fib_lookup/request.c FIB Lookup Request + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation version 2.1 + * of the License. + * + * Copyright (c) 2003-2006 Thomas Graf <tgraf@suug.ch> + */ + +/** + * @ingroup fib_lookup + * @defgroup flreq Request + * @brief + * @{ + */ + +#include <netlink-local.h> +#include <netlink/netlink.h> +#include <netlink/attr.h> +#include <netlink/utils.h> +#include <netlink/object.h> +#include <netlink/fib_lookup/request.h> + +static struct nl_object_ops request_obj_ops; + +/** @cond SKIP */ +#define REQUEST_ATTR_ADDR 0x01 +#define REQUEST_ATTR_FWMARK 0x02 +#define REQUEST_ATTR_TOS 0x04 +#define REQUEST_ATTR_SCOPE 0x08 +#define REQUEST_ATTR_TABLE 0x10 +/** @endcond */ + +static void request_free_data(struct nl_object *obj) +{ + struct flnl_request *req = REQUEST_CAST(obj); + + if (req) + nl_addr_put(req->lr_addr); +} + +static int request_clone(struct nl_object *_dst, struct nl_object *_src) +{ + struct flnl_request *dst = nl_object_priv(_dst); + struct flnl_request *src = nl_object_priv(_src); + + if (src->lr_addr) + if (!(dst->lr_addr = nl_addr_clone(src->lr_addr))) + goto errout; + + return 0; +errout: + return nl_get_errno(); +} + +static int request_compare(struct nl_object *_a, struct nl_object *_b, + uint32_t attrs, int flags) +{ + struct flnl_request *a = (struct flnl_request *) _a; + struct flnl_request *b = (struct flnl_request *) _b; + int diff = 0; + +#define REQ_DIFF(ATTR, EXPR) ATTR_DIFF(attrs, REQUEST_ATTR_##ATTR, a, b, EXPR) + + diff |= REQ_DIFF(FWMARK, a->lr_fwmark != b->lr_fwmark); + diff |= REQ_DIFF(TOS, a->lr_tos != b->lr_tos); + diff |= REQ_DIFF(SCOPE, a->lr_scope != b->lr_scope); + diff |= REQ_DIFF(TABLE, a->lr_table != b->lr_table); + diff |= REQ_DIFF(ADDR, nl_addr_cmp(a->lr_addr, b->lr_addr)); + +#undef REQ_DIFF + + return diff; +} + + +/** + * @name Lookup Request Creation/Deletion + * @{ + */ + +struct flnl_request *flnl_request_alloc(void) +{ + return REQUEST_CAST(nl_object_alloc(&request_obj_ops)); +} + +/** @} */ + +/** + * @name Attributes + * @{ + */ + +void flnl_request_set_fwmark(struct flnl_request *req, uint64_t fwmark) +{ + req->lr_fwmark = fwmark; + req->ce_mask |= REQUEST_ATTR_FWMARK; +} + +uint64_t flnl_request_get_fwmark(struct flnl_request *req) +{ + if (req->ce_mask & REQUEST_ATTR_FWMARK) + return req->lr_fwmark; + else + return UINT_LEAST64_MAX; +} + +void flnl_request_set_tos(struct flnl_request *req, int tos) +{ + req->lr_tos = tos; + req->ce_mask |= REQUEST_ATTR_TOS; +} + +int flnl_request_get_tos(struct flnl_request *req) +{ + if (req->ce_mask & REQUEST_ATTR_TOS) + return req->lr_tos; + else + return -1; +} + +void flnl_request_set_scope(struct flnl_request *req, int scope) +{ + req->lr_scope = scope; + req->ce_mask |= REQUEST_ATTR_SCOPE; +} + +int flnl_request_get_scope(struct flnl_request *req) +{ + if (req->ce_mask & REQUEST_ATTR_SCOPE) + return req->lr_scope; + else + return -1; +} + +void flnl_request_set_table(struct flnl_request *req, int table) +{ + req->lr_table = table; + req->ce_mask |= REQUEST_ATTR_TABLE; +} + +int flnl_request_get_table(struct flnl_request *req) +{ + if (req->ce_mask & REQUEST_ATTR_TABLE) + return req->lr_table; + else + return -1; +} + +int flnl_request_set_addr(struct flnl_request *req, struct nl_addr *addr) +{ + if (addr->a_family != AF_INET) + return nl_error(EINVAL, "Address must be an IPv4 address"); + + if (req->lr_addr) + nl_addr_put(req->lr_addr); + + nl_addr_get(addr); + req->lr_addr = addr; + + req->ce_mask |= REQUEST_ATTR_ADDR; + + return 0; +} + +struct nl_addr *flnl_request_get_addr(struct flnl_request *req) +{ + if (req->ce_mask & REQUEST_ATTR_ADDR) + return req->lr_addr; + else + return NULL; +} + +/** @} */ + +static struct nl_object_ops request_obj_ops = { + .oo_name = "fib_lookup/request", + .oo_size = sizeof(struct flnl_request), + .oo_free_data = request_free_data, + .oo_clone = request_clone, + .oo_compare = request_compare, + .oo_id_attrs = ~0, +}; + +/** @} */ |