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| author | Robert Watson <rwatson@FreeBSD.org> | 2003-04-14 20:39:06 +0000 |
|---|---|---|
| committer | Robert Watson <rwatson@FreeBSD.org> | 2003-04-14 20:39:06 +0000 |
| commit | 225bff6f8b02e48732b0ecbfe4b9c0f44905f445 (patch) | |
| tree | 4a1b631e9b980e33ec2ea5040a1b9787eeda9f33 /sys/kern/uipc_mbuf.c | |
| parent | b85add5f317cae6bb1d736c3984006d17a1ab16d (diff) | |
| download | src-225bff6f8b02e48732b0ecbfe4b9c0f44905f445.tar.gz src-225bff6f8b02e48732b0ecbfe4b9c0f44905f445.zip | |
Notes
Diffstat (limited to 'sys/kern/uipc_mbuf.c')
| -rw-r--r-- | sys/kern/uipc_mbuf.c | 23 |
1 files changed, 8 insertions, 15 deletions
diff --git a/sys/kern/uipc_mbuf.c b/sys/kern/uipc_mbuf.c index 55d828df28ee..08a7246409ef 100644 --- a/sys/kern/uipc_mbuf.c +++ b/sys/kern/uipc_mbuf.c @@ -88,21 +88,21 @@ m_move_pkthdr(struct mbuf *to, struct mbuf *from) #if 0 /* see below for why these are not enabled */ M_ASSERTPKTHDR(to); + /* Note: with MAC, this may not be a good assertion. */ KASSERT(SLIST_EMPTY(&to->m_pkthdr.tags), ("m_move_pkthdr: to has tags")); #endif KASSERT((to->m_flags & M_EXT) == 0, ("m_move_pkthdr: to has cluster")); #ifdef MAC + /* + * XXXMAC: It could be this should also occur for non-MAC? + */ if (to->m_flags & M_PKTHDR) - mac_destroy_mbuf(to); + m_tag_delete_chain(to, NULL); #endif to->m_flags = from->m_flags & M_COPYFLAGS; to->m_data = to->m_pktdat; to->m_pkthdr = from->m_pkthdr; /* especially tags */ -#ifdef MAC - mac_init_mbuf(to, 1); /* XXXMAC no way to fail */ - mac_create_mbuf_from_mbuf(from, to); -#endif SLIST_INIT(&from->m_pkthdr.tags); /* purge tags from src */ from->m_flags &= ~M_PKTHDR; } @@ -125,20 +125,17 @@ m_dup_pkthdr(struct mbuf *to, struct mbuf *from, int how) * assertions to trip. For now just disable them. */ M_ASSERTPKTHDR(to); + /* Note: with MAC, this may not be a good assertion. */ KASSERT(SLIST_EMPTY(&to->m_pkthdr.tags), ("m_dup_pkthdr: to has tags")); #endif #ifdef MAC if (to->m_flags & M_PKTHDR) - mac_destroy_mbuf(to); + m_tag_delete_chain(to, NULL); #endif to->m_flags = (from->m_flags & M_COPYFLAGS) | (to->m_flags & M_EXT); if ((to->m_flags & M_EXT) == 0) to->m_data = to->m_pktdat; to->m_pkthdr = from->m_pkthdr; -#ifdef MAC - mac_init_mbuf(to, 1); /* XXXMAC no way to fail */ - mac_create_mbuf_from_mbuf(from, to); -#endif SLIST_INIT(&to->m_pkthdr.tags); return (m_tag_copy_chain(to, from, MBTOM(how))); } @@ -158,12 +155,8 @@ m_prepend(struct mbuf *m, int len, int how) m_freem(m); return (NULL); } - if (m->m_flags & M_PKTHDR) { + if (m->m_flags & M_PKTHDR) M_MOVE_PKTHDR(mn, m); -#ifdef MAC - mac_destroy_mbuf(m); -#endif - } mn->m_next = m; m = mn; if (len < MHLEN) |