svn commit: r272052 - head/sys/contrib/ipfilter/netinet
Cy Schubert
cy at FreeBSD.org
Wed Sep 24 01:21:32 UTC 2014
Author: cy
Date: Wed Sep 24 01:21:31 2014
New Revision: 272052
URL: http://svnweb.freebsd.org/changeset/base/272052
Log:
ipfilter bug #558 add in some missing frag table function comments.
Approved by: glebius (mentor)
Obtained from: ipfilter CVS repo (r1.36)
Modified:
head/sys/contrib/ipfilter/netinet/ip_frag.c
Modified: head/sys/contrib/ipfilter/netinet/ip_frag.c
==============================================================================
--- head/sys/contrib/ipfilter/netinet/ip_frag.c Tue Sep 23 22:57:11 2014 (r272051)
+++ head/sys/contrib/ipfilter/netinet/ip_frag.c Wed Sep 24 01:21:31 2014 (r272052)
@@ -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)
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