lgcosta
5323ee2c71
- pfk_hooks: PRE→PF_IN, LOCAL_OUT/POST→PF_OUT v4+v6; replacement/buffer handling with NF_STOLEN + re-injection (documented divergence: re-entry) - pfk_mod: pf_status_init/pfattach + pfi attach via pfk_if event callback - pfk_kern: NET_LOCK holder reentrancy (fix deadlock when notifier fires under the write lock — observed as full-VM network hang) - tools: static pfctl link for musl VMs
31 lines
1.1 KiB
C
31 lines
1.1 KiB
C
/* PFLINUX: <net/if_dl.h> — BSD link-layer address. Linux has no AF_LINK;
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* getifaddrs() reports link-layer addresses as AF_PACKET/struct sockaddr_ll.
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* We therefore define AF_LINK as AF_PACKET and lay struct sockaddr_dl out
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* exactly like struct sockaddr_ll, so pfctl_parser.c's
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* ((struct sockaddr_dl *)ifa->ifa_addr)->sdl_index finds sll_ifindex.
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* Everything stays userland-internal: af values tagged AF_LINK never cross
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* /dev/pf (rules carry ifname strings, not sockaddr families). */
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#ifndef _PFLINUX_NET_IF_DL_H
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#define _PFLINUX_NET_IF_DL_H
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#include <sys/types.h>
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#include <sys/socket.h>
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#ifndef AF_LINK
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#define AF_LINK AF_PACKET /* PFLINUX mapping, see header note */
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#endif
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struct sockaddr_dl {
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sa_family_t sdl_family; /* sll_family (offset 0) */
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u_short sdl_protocol; /* sll_protocol (offset 2) */
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int sdl_index; /* sll_ifindex (offset 4) */
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u_short sdl_type; /* sll_hatype (offset 8) */
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u_char sdl_pkttype; /* sll_pkttype (offset 10) */
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u_char sdl_alen; /* sll_halen (offset 11) */
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u_char sdl_data[8]; /* sll_addr (offset 12) */
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};
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#define LLADDR(s) ((caddr_t *)((s)->sdl_data))
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#endif /* _PFLINUX_NET_IF_DL_H */
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