Re: What about adding range support for u32 classifier?
2005/8/30, Jesper Juhl <[EMAIL PROTECTED]>: > On 8/30/05, zhang yuanyi <[EMAIL PROTECTED]> wrote: > > Hello, everyone! > > > > The "range support" may be puzzled, but I don't know how to express my > > problem exactly because of my poor english. > > > > Just take an example, I may need all udp packets received on eth0 > > which source port is greater than 53 going into flow 10:1, and I only > > wanna to type one tc command like this(In fact, I communicated with > > kernel directly): > > > > tc filter add dev eth0 parent : protocol ip prio 20 \ > > u32 match udp sport gt 53 0x \ > > match ip protocol 17 0xff\ > >flowid 10:1 > > > > But I found I can't, because u32 classifier doesn't support matching > > multi-value in one key.So I need to add (65535-53) keys to a u32 > > filter to implement this. > > > > I intend to solve this problem by modifying u32 filter to match > > multi-value in one key, but I am worrying the preformance. > > > > Can someone give me some suggestions? > > > How is this a kernel problem? > "tc" is a userspace app. I think you'd be better off talking to Alexey > Kuznetsov (added to Cc), who wrote tc, about this. > Actually, I communicated with kernel directly in my app and don't use tc at all. That tc command is used just for expressing my problem conveniently. My problem is that I need to match udp/tcp packets with different s/d port(f.e., all udp packets which source port is greater than 53 and less than 5069) on ingress, but u32 classifier in kernel(not the tc app) doesn't support matching value in a range. So I think I may need to modify the kernel to add range support for u32 classifier. But I am worrying its performance will be down. Does anyone have a more clever solution? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: What about adding range support for u32 classifier?
2005/8/30, Jesper Juhl [EMAIL PROTECTED]: On 8/30/05, zhang yuanyi [EMAIL PROTECTED] wrote: Hello, everyone! The range support may be puzzled, but I don't know how to express my problem exactly because of my poor english. Just take an example, I may need all udp packets received on eth0 which source port is greater than 53 going into flow 10:1, and I only wanna to type one tc command like this(In fact, I communicated with kernel directly): tc filter add dev eth0 parent : protocol ip prio 20 \ u32 match udp sport gt 53 0x \ match ip protocol 17 0xff\ flowid 10:1 But I found I can't, because u32 classifier doesn't support matching multi-value in one key.So I need to add (65535-53) keys to a u32 filter to implement this. I intend to solve this problem by modifying u32 filter to match multi-value in one key, but I am worrying the preformance. Can someone give me some suggestions? How is this a kernel problem? tc is a userspace app. I think you'd be better off talking to Alexey Kuznetsov (added to Cc), who wrote tc, about this. Actually, I communicated with kernel directly in my app and don't use tc at all. That tc command is used just for expressing my problem conveniently. My problem is that I need to match udp/tcp packets with different s/d port(f.e., all udp packets which source port is greater than 53 and less than 5069) on ingress, but u32 classifier in kernel(not the tc app) doesn't support matching value in a range. So I think I may need to modify the kernel to add range support for u32 classifier. But I am worrying its performance will be down. Does anyone have a more clever solution? - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: What about adding range support for u32 classifier?
On 8/30/05, zhang yuanyi <[EMAIL PROTECTED]> wrote: > Hello, everyone! > > The "range support" may be puzzled, but I don't know how to express my > problem exactly because of my poor english. > > Just take an example, I may need all udp packets received on eth0 > which source port is greater than 53 going into flow 10:1, and I only > wanna to type one tc command like this(In fact, I communicated with > kernel directly): > > tc filter add dev eth0 parent : protocol ip prio 20 \ > u32 match udp sport gt 53 0x \ > match ip protocol 17 0xff\ >flowid 10:1 > > But I found I can't, because u32 classifier doesn't support matching > multi-value in one key.So I need to add (65535-53) keys to a u32 > filter to implement this. > > I intend to solve this problem by modifying u32 filter to match > multi-value in one key, but I am worrying the preformance. > > Can someone give me some suggestions? > How is this a kernel problem? "tc" is a userspace app. I think you'd be better off talking to Alexey Kuznetsov (added to Cc), who wrote tc, about this. -- Jesper Juhl <[EMAIL PROTECTED]> Don't top-post http://www.catb.org/~esr/jargon/html/T/top-post.html Plain text mails only, please http://www.expita.com/nomime.html - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: What about adding range support for u32 classifier?
On 8/30/05, zhang yuanyi [EMAIL PROTECTED] wrote: Hello, everyone! The range support may be puzzled, but I don't know how to express my problem exactly because of my poor english. Just take an example, I may need all udp packets received on eth0 which source port is greater than 53 going into flow 10:1, and I only wanna to type one tc command like this(In fact, I communicated with kernel directly): tc filter add dev eth0 parent : protocol ip prio 20 \ u32 match udp sport gt 53 0x \ match ip protocol 17 0xff\ flowid 10:1 But I found I can't, because u32 classifier doesn't support matching multi-value in one key.So I need to add (65535-53) keys to a u32 filter to implement this. I intend to solve this problem by modifying u32 filter to match multi-value in one key, but I am worrying the preformance. Can someone give me some suggestions? How is this a kernel problem? tc is a userspace app. I think you'd be better off talking to Alexey Kuznetsov (added to Cc), who wrote tc, about this. -- Jesper Juhl [EMAIL PROTECTED] Don't top-post http://www.catb.org/~esr/jargon/html/T/top-post.html Plain text mails only, please http://www.expita.com/nomime.html - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
