diff options
Diffstat (limited to 'share/dtrace/watch_kill')
| -rwxr-xr-x | share/dtrace/watch_kill | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/share/dtrace/watch_kill b/share/dtrace/watch_kill new file mode 100755 index 000000000000..b7a06f9a129f --- /dev/null +++ b/share/dtrace/watch_kill @@ -0,0 +1,232 @@ +#!/usr/sbin/dtrace -s +/* - + * Copyright (c) 2014-2015 Devin Teske <dteske@FreeBSD.org> + * All rights reserved. + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $Title: dtrace(1) script to log process(es) entering syscall::kill $ + * $FreeBSD$ + */ + +#pragma D option quiet +#pragma D option dynvarsize=16m +#pragma D option switchrate=10hz + +/*********************************************************/ + +syscall::execve:entry /* probe ID 1 */ +{ + this->caller_execname = execname; +} + +/*********************************************************/ + +syscall::kill:entry /* probe ID 2 */ +{ + this->pid_to_kill = (pid_t)arg0; + this->kill_signal = (int)arg1; + + /* + * Examine process, parent process, and grandparent process details + */ + + /******************* CURPROC *******************/ + + this->proc = curthread->td_proc; + this->pid0 = this->proc->p_pid; + this->uid0 = this->proc->p_ucred->cr_uid; + this->gid0 = this->proc->p_ucred->cr_rgid; + this->p_args = this->proc->p_args; + this->ar_length = this->p_args ? this->p_args->ar_length : 0; + this->ar_args = (char *)(this->p_args ? this->p_args->ar_args : 0); + + this->arg0_0 = this->ar_length > 0 ? + this->ar_args : stringof(this->proc->p_comm); + this->len = this->ar_length > 0 ? strlen(this->ar_args) + 1 : 0; + this->ar_args += this->len; + this->ar_length -= this->len; + + this->arg0_1 = this->ar_length > 0 ? this->ar_args : ""; + this->len = this->ar_length > 0 ? strlen(this->ar_args) + 1 : 0; + this->ar_args += this->len; + this->ar_length -= this->len; + + this->arg0_2 = this->ar_length > 0 ? this->ar_args : ""; + this->len = this->ar_length > 0 ? strlen(this->ar_args) + 1 : 0; + this->ar_args += this->len; + this->ar_length -= this->len; + + this->arg0_3 = this->ar_length > 0 ? this->ar_args : ""; + this->len = this->ar_length > 0 ? strlen(this->ar_args) + 1 : 0; + this->ar_args += this->len; + this->ar_length -= this->len; + + this->arg0_4 = this->ar_length > 0 ? "..." : ""; + + /******************* PPARENT *******************/ + + this->proc = this->proc->p_pptr; + this->pid1 = this->proc->p_pid; + this->uid1 = this->proc->p_ucred->cr_uid; + this->gid1 = this->proc->p_ucred->cr_rgid; + this->p_args = this->proc ? this->proc->p_args : 0; + this->ar_length = this->p_args ? this->p_args->ar_length : 0; + this->ar_args = (char *)(this->p_args ? this->p_args->ar_args : 0); + + this->arg1_0 = this->ar_length > 0 ? + this->ar_args : stringof(this->proc->p_comm); + this->len = this->ar_length > 0 ? strlen(this->ar_args) + 1 : 0; + this->ar_args += this->len; + this->ar_length -= this->len; + + this->arg1_1 = this->ar_length > 0 ? this->ar_args : ""; + this->len = this->ar_length > 0 ? strlen(this->ar_args) + 1 : 0; + this->ar_args += this->len; + this->ar_length -= this->len; + + this->arg1_2 = this->ar_length > 0 ? this->ar_args : ""; + this->len = this->ar_length > 0 ? strlen(this->ar_args) + 1 : 0; + this->ar_args += this->len; + this->ar_length -= this->len; + + this->arg1_3 = this->ar_length > 0 ? this->ar_args : ""; + this->len = this->ar_length > 0 ? strlen(this->ar_args) + 1 : 0; + this->ar_args += this->len; + this->ar_length -= this->len; + + this->arg1_4 = this->ar_length > 0 ? "..." : ""; + + /******************* GPARENT *******************/ + + this->proc = this->proc->p_pptr; + this->pid2 = this->proc->p_pid; + this->uid2 = this->proc->p_ucred->cr_uid; + this->gid2 = this->proc->p_ucred->cr_rgid; + this->p_args = this->proc ? this->proc->p_args : 0; + this->ar_length = this->p_args ? this->p_args->ar_length : 0; + this->ar_args = (char *)(this->p_args ? this->p_args->ar_args : 0); + + this->arg2_0 = this->ar_length > 0 ? + this->ar_args : stringof(this->proc->p_comm); + this->len = this->ar_length > 0 ? strlen(this->ar_args) + 1 : 0; + this->ar_args += this->len; + this->ar_length -= this->len; + + this->arg2_1 = this->ar_length > 0 ? this->ar_args : ""; + this->len = this->ar_length > 0 ? strlen(this->ar_args) + 1 : 0; + this->ar_args += this->len; + this->ar_length -= this->len; + + this->arg2_2 = this->ar_length > 0 ? this->ar_args : ""; + this->len = this->ar_length > 0 ? strlen(this->ar_args) + 1 : 0; + this->ar_args += this->len; + this->ar_length -= this->len; + + this->arg2_3 = this->ar_length > 0 ? this->ar_args : ""; + this->len = this->ar_length > 0 ? strlen(this->ar_args) + 1 : 0; + this->ar_args += this->len; + this->ar_length -= this->len; + + this->arg2_4 = this->ar_length > 0 ? "..." : ""; + + /******************* APARENT *******************/ + + this->proc = this->proc->p_pptr; + this->pid3 = this->proc->p_pid; + this->uid3 = this->proc->p_ucred->cr_uid; + this->gid3 = this->proc->p_ucred->cr_rgid; + this->p_args = this->proc ? this->proc->p_args : 0; + this->ar_length = this->p_args ? this->p_args->ar_length : 0; + this->ar_args = (char *)(this->p_args ? this->p_args->ar_args : 0); + + this->arg3_0 = this->ar_length > 0 ? + this->ar_args : stringof(this->proc->p_comm); + this->len = this->ar_length > 0 ? strlen(this->ar_args) + 1 : 0; + this->ar_args += this->len; + this->ar_length -= this->len; + + this->arg3_1 = this->ar_length > 0 ? this->ar_args : ""; + this->len = this->ar_length > 0 ? strlen(this->ar_args) + 1 : 0; + this->ar_args += this->len; + this->ar_length -= this->len; + + this->arg3_2 = this->ar_length > 0 ? this->ar_args : ""; + this->len = this->ar_length > 0 ? strlen(this->ar_args) + 1 : 0; + this->ar_args += this->len; + this->ar_length -= this->len; + + this->arg3_3 = this->ar_length > 0 ? this->ar_args : ""; + this->len = this->ar_length > 0 ? strlen(this->ar_args) + 1 : 0; + this->ar_args += this->len; + this->ar_length -= this->len; + + this->arg3_4 = this->ar_length > 0 ? "..." : ""; + + /***********************************************/ + + /* + * Print process, parent, and grandparent details + */ + + printf("%Y %s[%d]: ", timestamp + 1406598400000000000, + this->caller_execname, this->pid1); + printf("%s", this->arg0_0); + printf("%s%s", this->arg0_1 != "" ? " " : "", this->arg0_1); + printf("%s%s", this->arg0_2 != "" ? " " : "", this->arg0_2); + printf("%s%s", this->arg0_3 != "" ? " " : "", this->arg0_3); + printf("%s%s", this->arg0_4 != "" ? " " : "", this->arg0_4); + printf(" (sending signal %u to pid %u)", + this->kill_signal, this->pid_to_kill); + printf("\n"); + + printf(" -+= %05d %d.%d %s", + this->pid3, this->uid3, this->gid3, this->arg3_0); + printf("%s%s", this->arg3_1 != "" ? " " : "", this->arg3_1); + printf("%s%s", this->arg3_2 != "" ? " " : "", this->arg3_2); + printf("%s%s", this->arg3_3 != "" ? " " : "", this->arg3_3); + printf("%s%s", this->arg3_4 != "" ? " " : "", this->arg3_4); + printf("%s", this->arg3_0 != "" ? "\n" : ""); + + printf(" \-+= %05d %d.%d %s", + this->pid2, this->uid2, this->gid2, this->arg2_0); + printf("%s%s", this->arg2_1 != "" ? " " : "", this->arg2_1); + printf("%s%s", this->arg2_2 != "" ? " " : "", this->arg2_2); + printf("%s%s", this->arg2_3 != "" ? " " : "", this->arg2_3); + printf("%s%s", this->arg2_4 != "" ? " " : "", this->arg2_4); + printf("%s", this->arg2_0 != "" ? "\n" : ""); + + printf(" \-+= %05d %d.%d %s", + this->pid1, this->uid1, this->gid1, this->arg1_0); + printf("%s%s", this->arg1_1 != "" ? " " : "", this->arg1_1); + printf("%s%s", this->arg1_2 != "" ? " " : "", this->arg1_2); + printf("%s%s", this->arg1_3 != "" ? " " : "", this->arg1_3); + printf("%s%s", this->arg1_4 != "" ? " " : "", this->arg1_4); + printf("%s", this->arg1_0 != "" ? "\n" : ""); + + printf(" \-+= %05d %d.%d %s", + this->pid0, this->uid0, this->gid0, this->arg0_0); + printf("%s%s", this->arg0_1 != "" ? " " : "", this->arg0_1); + printf("%s%s", this->arg0_2 != "" ? " " : "", this->arg0_2); + printf("%s%s", this->arg0_3 != "" ? " " : "", this->arg0_3); + printf("%s%s", this->arg0_4 != "" ? " " : "", this->arg0_4); + printf("%s", this->arg0_0 != "" ? "\n" : ""); +} |