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Diffstat (limited to 'fwd_rule.h')
| -rw-r--r-- | fwd_rule.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/fwd_rule.h b/fwd_rule.h new file mode 100644 index 0000000..ae0e1d6 --- /dev/null +++ b/fwd_rule.h @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later + * Copyright Red Hat + * Author: Stefano Brivio <sbrivio@redhat.com> + * Author: David Gibson <david@gibson.dropbear.id.au> + * + * Forwarding rule definitions shared between passt/pasta and pesto + */ + +#ifndef FWD_RULE_H +#define FWD_RULE_H + +#include <stdint.h> +#include <net/if.h> +#include <netinet/in.h> + +#include "inany.h" + +/** + * struct fwd_rule - Forwarding rule governing a range of ports + * @addr: Address to forward from + * @ifname: Interface to forward from + * @first: First port number to forward + * @last: Last port number to forward + * @to: Target port for @first, port n goes to @to + (n - @first) + * @proto: Protocol to forward + * @flags: Flag mask + * FWD_DUAL_STACK_ANY - match any IPv4 or IPv6 address (@addr should be ::) + * FWD_WEAK - Don't give an error if binds fail for some forwards + * FWD_SCAN - Only forward if the matching port in the target is listening + */ +struct fwd_rule { + union inany_addr addr; + char ifname[IFNAMSIZ]; + in_port_t first; + in_port_t last; + in_port_t to; + uint8_t proto; +#define FWD_DUAL_STACK_ANY BIT(0) +#define FWD_WEAK BIT(1) +#define FWD_SCAN BIT(2) + uint8_t flags; +}; + +#endif /* FWD_RULE_H */ |