| Commit message (Collapse) | Author | Age | Files | Lines |
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* tapset/tcpmib.stp (tcpmib_get_state): Changed from embedded-C to script
code.
(tcpmib_local_addr): Instead of an embedded-C function, now calls
function from ip.stp/tcp.stp.
(tcpmib_remote_addr): Ditto.
(tcpmib_local_port): Ditto.
(tcpmib_remote_port): Ditto.
(tcpmib.OutRsts.A): Used '@defined' instead of a kernel version check.
* tapset/ip.stp (__ip_sock_saddr): Used '@defined' instead of a kernel
version check. Added RHEL4 support.
(__ip_sock_daddr): Ditto.
* tapset/tcp.stp (__tcp_sock_dport): Ditto.
(__tcp_sock_sport): Ditto.
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* tapset/inet_sock.stp : Add prefix "inet_" to field.
* tapset/ip.stp : Ditto.
* tapset/tcp.stp : Ditto.
* tapset/tcpmib.stp : Ditto.
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This patch adds some basic functions to the IP and TCP tapsets.
Mainly, it's possible to get the iphdr and tcphdr from a sk_buff structure.
As a consequence, a TCP probe called tcp.receive() was created and
is probed every time a TCP packet is received, and a lot of
useful fields is available, as the TCP flags.
Also a small example that works like tcpdump for received TCP packets was
created.
This patch was tested on x86 and ppc machines, on 2.6.18 kernel and also on
mainline one.
Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com>
Signed-off-by: Andre Detsch <adetsch@br.ibm.com>
Signed-off-by: Josh Stone <jistone@redhat.com>
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functions to grab TCP source and destination port from a socket.
Also, used this function inside some TCP probe functions, as recvmsg,
to provide a richer set of fields.
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tapsetdescription for man page generator (in development)
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* tcp.stp: Add name argument for all probes.
* tcp.stp (tcp.setsockopt.return): Add comment.
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* tcp.stp (sendmsg.return): Fix description of size variable.
* tcp.stp (recvmsg.return): Ditto.
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* tcp.stp (sockstate): Fix typo.
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* context.stp (module_name): New. Returns the current
module name.
* tcp.stp (tcp_sendmsg): For 2.6.23, parameters change.
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* tcp.stp (tcp_sockstate_str, tcp_sockopt_str,
tcp_setsockopt): New. Also added sockopt and sockstate
lookup tables.
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* aux_syscalls.stp, inet_sock.stp, ioblock.stp, ioscheduler.stp,
nfs.stp, nfs_proc.stp, nfsd.stp, rpc.stp, scsi.stp, signal.stp,
socket.stp, task.stp, tcp.stp, vfs.stp: Protect pointer dereferences
with kread wherever possible. Some places still have hazards, as
marked with FIXMEs.
* errno.stp (returnstr): Don't use return in tapset C functions.
* aux_syscalls.stp (__uget_timex_m): Ditto.
* nfsd.stp (__get_fh): Ditto.
* nfs.stp, vfs.stp (<many functions>): Ditto.
* string.stp (substr): Ditto. Also make sure start index is valid.
* syscalls.stp (syscall.execve): Change __string to kernel_string.
LKET/
* nfs.stp, nfs_proc.stp, nfsd.stp, process.stp, tskdispatch.stp:
Protect pointer dereferences with kread wherever possible. Some
places still have hazards, as marked with FIXMEs.
* aio.stp (log_io_getevents): Don't use return in tapset C functions.
* timestamp.stp (set_timing_method): Ditto.
* utils.stp (filter_by_pid): Ditto.
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TCP tapset.
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