git: c56650fd791d - main - pf: add a pointer to the protocol checksum header field to pf_pdesc

The branch main has been updated by kp:

URL: https://cgit.FreeBSD.org/src/commit/?id=c56650fd791dbaa4a5c677bdac6cff3d4027264a

commit c56650fd791dbaa4a5c677bdac6cff3d4027264a
Author:     Kristof Provost <kp@FreeBSD.org>
AuthorDate: 2025-02-05 16:40:00 +0000
Commit:     Kristof Provost <kp@FreeBSD.org>
CommitDate: 2025-02-12 19:38:38 +0000

    pf: add a pointer to the protocol checksum header field to pf_pdesc
    
    Set it up in pf_setup_pdesc(). ok ryan benno mikeb bluhm
    
    Obtained from:  OpenBSD, henning <henning@openbsd.org>, 14255d4d87
    Sponsored by:   Rubicon Communications, LLC ("Netgate")
---
 sys/net/pfvar.h     | 1 +
 sys/netpfil/pf/pf.c | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/sys/net/pfvar.h b/sys/net/pfvar.h
index 65be1a0ce19b..d4c3831b49f8 100644
--- a/sys/net/pfvar.h
+++ b/sys/net/pfvar.h
@@ -1614,6 +1614,7 @@ struct pf_pdesc {
 
 	struct pf_addr	*src;		/* src address */
 	struct pf_addr	*dst;		/* dst address */
+	u_int16_t	*pcksum;	/* proto cksum */
 	u_int16_t	*sport;
 	u_int16_t	*dport;
 	u_int16_t	 osport;
diff --git a/sys/netpfil/pf/pf.c b/sys/netpfil/pf/pf.c
index 874fd0678f7a..3957d39edc13 100644
--- a/sys/netpfil/pf/pf.c
+++ b/sys/netpfil/pf/pf.c
@@ -10090,6 +10090,7 @@ pf_setup_pdesc(sa_family_t af, int dir, struct pf_pdesc *pd, struct mbuf **m0,
 		pd->p_len = pd->tot_len - pd->off - (th->th_off << 2);
 		pd->sport = &th->th_sport;
 		pd->dport = &th->th_dport;
+		pd->pcksum = &th->th_sum;
 		break;
 	}
 	case IPPROTO_UDP: {
@@ -10111,6 +10112,7 @@ pf_setup_pdesc(sa_family_t af, int dir, struct pf_pdesc *pd, struct mbuf **m0,
 		}
 		pd->sport = &uh->uh_sport;
 		pd->dport = &uh->uh_dport;
+		pd->pcksum = &uh->uh_sum;
 		break;
 	}
 	case IPPROTO_SCTP: {
@@ -10176,6 +10178,7 @@ pf_setup_pdesc(sa_family_t af, int dir, struct pf_pdesc *pd, struct mbuf **m0,
 			return (-1);
 		}
 		pd->hdrlen = icmp_hlen;
+		pd->pcksum = &pd->hdr.icmp.icmp_cksum;
 		break;
 	}
 #endif