From c3d5eb1373fe5c9295142cbe6e33cf9cf6bcea16 Mon Sep 17 00:00:00 2001 From: cy Date: Sun, 12 Oct 2014 17:10:44 +0000 Subject: [PATCH] MFC r272052 ipfilter bug #558 add in some missing frag table function comments. Obtained from: ipfilter CVS repo (r1.36) git-svn-id: svn://svn.freebsd.org/base/stable/10@272993 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f --- sys/contrib/ipfilter/netinet/ip_frag.c | 38 ++++++++++++++++++++++---- 1 file changed, 33 insertions(+), 5 deletions(-) diff --git a/sys/contrib/ipfilter/netinet/ip_frag.c b/sys/contrib/ipfilter/netinet/ip_frag.c index fd4ff2449..831326c29 100644 --- a/sys/contrib/ipfilter/netinet/ip_frag.c +++ b/sys/contrib/ipfilter/netinet/ip_frag.c @@ -930,7 +930,8 @@ ipf_frag_known(fin, passp) /* ------------------------------------------------------------------------ */ /* Function: ipf_frag_natforget */ /* Returns: Nil */ -/* Parameters: ptr(I) - pointer to data structure */ +/* Parameters: softc(I) - pointer to soft context main structure */ +/* ptr(I) - pointer to data structure */ /* */ /* Search through all of the fragment cache entries for NAT and wherever a */ /* pointer is found to match ptr, reset it to NULL. */ @@ -954,7 +955,8 @@ ipf_frag_natforget(softc, ptr) /* ------------------------------------------------------------------------ */ /* Function: ipf_frag_delete */ /* Returns: Nil */ -/* Parameters: fra(I) - pointer to fragment structure to delete */ +/* Parameters: softc(I) - pointer to soft context main structure */ +/* fra(I) - pointer to fragment structure to delete */ /* tail(IO) - pointer to the pointer to the tail of the frag */ /* list */ /* */ @@ -991,7 +993,10 @@ ipf_frag_delete(softc, fra, tail) /* ------------------------------------------------------------------------ */ /* Function: ipf_frag_free */ /* Returns: Nil */ +/* Parameters: softf(I) - pointer to fragment context information */ +/* fra(I) - pointer to fragment structure to free */ /* */ +/* Free up a fragment cache entry and bump relevent statistics. */ /* ------------------------------------------------------------------------ */ static void ipf_frag_free(softf, fra) @@ -1007,7 +1012,7 @@ ipf_frag_free(softf, fra) /* ------------------------------------------------------------------------ */ /* Function: ipf_frag_clear */ /* Returns: Nil */ -/* Parameters: Nil */ +/* Parameters: softc(I) - pointer to soft context main structure */ /* */ /* Free memory in use by fragment state information kept. Do the normal */ /* fragment state stuff first and then the NAT-fragment table. */ @@ -1048,7 +1053,7 @@ ipf_frag_clear(softc) /* ------------------------------------------------------------------------ */ /* Function: ipf_frag_expire */ /* Returns: Nil */ -/* Parameters: Nil */ +/* Parameters: softc(I) - pointer to soft context main structure */ /* */ /* Expire entries in the fragment cache table that have been there too long */ /* ------------------------------------------------------------------------ */ @@ -1120,6 +1125,13 @@ ipf_frag_expire(softc) /* ------------------------------------------------------------------------ */ /* Function: ipf_frag_pkt_next */ +/* Returns: int - 0 == success, else error */ +/* Parameters: softc(I) - pointer to soft context main structure */ +/* token(I) - pointer to token information for this caller */ +/* itp(I) - pointer to generic iterator from caller */ +/* */ +/* This function is used to step through the fragment cache list used for */ +/* filter rules. The hard work is done by the more generic ipf_frag_next. */ /* ------------------------------------------------------------------------ */ int ipf_frag_pkt_next(softc, token, itp) @@ -1140,6 +1152,13 @@ ipf_frag_pkt_next(softc, token, itp) /* ------------------------------------------------------------------------ */ /* Function: ipf_frag_nat_next */ +/* Returns: int - 0 == success, else error */ +/* Parameters: softc(I) - pointer to soft context main structure */ +/* token(I) - pointer to token information for this caller */ +/* itp(I) - pointer to generic iterator from caller */ +/* */ +/* This function is used to step through the fragment cache list used for */ +/* NAT. The hard work is done by the more generic ipf_frag_next. */ /* ------------------------------------------------------------------------ */ int ipf_frag_nat_next(softc, token, itp) @@ -1160,7 +1179,8 @@ ipf_frag_nat_next(softc, token, itp) /* ------------------------------------------------------------------------ */ /* Function: ipf_frag_next */ /* Returns: int - 0 == success, else error */ -/* Parameters: token(I) - pointer to token information for this caller */ +/* Parameters: softc(I) - pointer to soft context main structure */ +/* token(I) - pointer to token information for this caller */ /* itp(I) - pointer to generic iterator from caller */ /* top(I) - top of the fragment list */ /* lock(I) - fragment cache lock */ @@ -1239,7 +1259,11 @@ ipf_frag_next(softc, token, itp, top /* ------------------------------------------------------------------------ */ /* Function: ipf_frag_pkt_deref */ /* Returns: Nil */ +/* Parameters: softc(I) - pointer to soft context main structure */ +/* data(I) - pointer to frag cache pointer */ /* */ +/* This function is the external interface for dropping a reference to a */ +/* fragment cache entry used by filter rules. */ /* ------------------------------------------------------------------------ */ void ipf_frag_pkt_deref(softc, data) @@ -1261,7 +1285,11 @@ ipf_frag_pkt_deref(softc, data) /* ------------------------------------------------------------------------ */ /* Function: ipf_frag_nat_deref */ /* Returns: Nil */ +/* Parameters: softc(I) - pointer to soft context main structure */ +/* data(I) - pointer to frag cache pointer */ /* */ +/* This function is the external interface for dropping a reference to a */ +/* fragment cache entry used by NAT table entries. */ /* ------------------------------------------------------------------------ */ void ipf_frag_nat_deref(softc, data) -- 2.45.0