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[PATCH] netfilter: ctnetlink: Make some parameters integer to avoid enum mismatch

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  [PATCH] netfilter: ctnetlink: Make some parameters integer to avoid enum mismatch Matthias Kaehlcke <mka@chromium.org> - 2017-04-19 20:40 +0200
    Re: [PATCH] netfilter: ctnetlink: Make some parameters integer to  avoid enum mismatch Joe Perches <joe@perches.com> - 2017-04-19 21:50 +0200
      Re: [PATCH] netfilter: ctnetlink: Make some parameters integer to  avoid enum mismatch Matthias Kaehlcke <mka@chromium.org> - 2017-04-19 22:00 +0200

#1626696 — [PATCH] netfilter: ctnetlink: Make some parameters integer to avoid enum mismatch

Not all parameters passed to ctnetlink_parse_tuple() and
ctnetlink_exp_dump_tuple() match the enum type in the signatures of these
functions. Since this is intended change the argument type of to be an int
value.

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
---
 net/netfilter/nf_conntrack_netlink.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index dc7dfd68fafe..775eb5d9165b 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -1006,9 +1006,8 @@ static const struct nla_policy tuple_nla_policy[CTA_TUPLE_MAX+1] = {
 
 static int
 ctnetlink_parse_tuple(const struct nlattr * const cda[],
-		      struct nf_conntrack_tuple *tuple,
-		      enum ctattr_type type, u_int8_t l3num,
-		      struct nf_conntrack_zone *zone)
+		      struct nf_conntrack_tuple *tuple, u32 type,
+		      u_int8_t l3num, struct nf_conntrack_zone *zone)
 {
 	struct nlattr *tb[CTA_TUPLE_MAX+1];
 	int err;
@@ -2443,7 +2442,7 @@ static struct nfnl_ct_hook ctnetlink_glue_hook = {
 
 static int ctnetlink_exp_dump_tuple(struct sk_buff *skb,
 				    const struct nf_conntrack_tuple *tuple,
-				    enum ctattr_expect type)
+				    u32 type)
 {
 	struct nlattr *nest_parms;
 
-- 
2.12.2.816.g2cccc81164-goog

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#1626740 — Re: [PATCH] netfilter: ctnetlink: Make some parameters integer to avoid enum mismatch

On Wed, 2017-04-19 at 11:39 -0700, Matthias Kaehlcke wrote:
> Not all parameters passed to ctnetlink_parse_tuple() and
> ctnetlink_exp_dump_tuple() match the enum type in the signatures of these
> functions.

Maybe that should be changed/fixed.

> Since this is intended change the argument type of to be an int
> value.

u32 is not int, it's unsigned int

> Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
> ---
>  net/netfilter/nf_conntrack_netlink.c | 7 +++----
>  1 file changed, 3 insertions(+), 4 deletions(-)
> 
> diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
> index dc7dfd68fafe..775eb5d9165b 100644
> --- a/net/netfilter/nf_conntrack_netlink.c
> +++ b/net/netfilter/nf_conntrack_netlink.c
> @@ -1006,9 +1006,8 @@ static const struct nla_policy tuple_nla_policy[CTA_TUPLE_MAX+1] = {
>  
>  static int
>  ctnetlink_parse_tuple(const struct nlattr * const cda[],
> -		      struct nf_conntrack_tuple *tuple,
> -		      enum ctattr_type type, u_int8_t l3num,
> -		      struct nf_conntrack_zone *zone)
> +		      struct nf_conntrack_tuple *tuple, u32 type,
> +		      u_int8_t l3num, struct nf_conntrack_zone *zone)
>  {
>  	struct nlattr *tb[CTA_TUPLE_MAX+1];
>  	int err;
> @@ -2443,7 +2442,7 @@ static struct nfnl_ct_hook ctnetlink_glue_hook = {
>  
>  static int ctnetlink_exp_dump_tuple(struct sk_buff *skb,
>  				    const struct nf_conntrack_tuple *tuple,
> -				    enum ctattr_expect type)
> +				    u32 type)
>  {
>  	struct nlattr *nest_parms;
>  

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#1626749 — Re: [PATCH] netfilter: ctnetlink: Make some parameters integer to avoid enum mismatch

El Wed, Apr 19, 2017 at 12:41:10PM -0700 Joe Perches ha dit:

> On Wed, 2017-04-19 at 11:39 -0700, Matthias Kaehlcke wrote:
> > Not all parameters passed to ctnetlink_parse_tuple() and
> > ctnetlink_exp_dump_tuple() match the enum type in the signatures of these
> > functions.
> 
> Maybe that should be changed/fixed.

Please see the previous discussion at
http://www.spinics.net/lists/netfilter-devel/msg47540.html

> > Since this is intended change the argument type of to be an int
> > value.
> 
> u32 is not int, it's unsigned int

I would argue that an unsigned int is an int(eger) and considered it
an unnecessary detail for the commit message to be explicit. I can
change it if others deem it incorrect.

Cheers

Matthias

> > Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
> > ---
> >  net/netfilter/nf_conntrack_netlink.c | 7 +++----
> >  1 file changed, 3 insertions(+), 4 deletions(-)
> > 
> > diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
> > index dc7dfd68fafe..775eb5d9165b 100644
> > --- a/net/netfilter/nf_conntrack_netlink.c
> > +++ b/net/netfilter/nf_conntrack_netlink.c
> > @@ -1006,9 +1006,8 @@ static const struct nla_policy tuple_nla_policy[CTA_TUPLE_MAX+1] = {
> >  
> >  static int
> >  ctnetlink_parse_tuple(const struct nlattr * const cda[],
> > -		      struct nf_conntrack_tuple *tuple,
> > -		      enum ctattr_type type, u_int8_t l3num,
> > -		      struct nf_conntrack_zone *zone)
> > +		      struct nf_conntrack_tuple *tuple, u32 type,
> > +		      u_int8_t l3num, struct nf_conntrack_zone *zone)
> >  {
> >  	struct nlattr *tb[CTA_TUPLE_MAX+1];
> >  	int err;
> > @@ -2443,7 +2442,7 @@ static struct nfnl_ct_hook ctnetlink_glue_hook = {
> >  
> >  static int ctnetlink_exp_dump_tuple(struct sk_buff *skb,
> >  				    const struct nf_conntrack_tuple *tuple,
> > -				    enum ctattr_expect type)
> > +				    u32 type)
> >  {
> >  	struct nlattr *nest_parms;
> >  

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