diff options
Diffstat (limited to 'tapset/aux_syscalls.stp')
| -rw-r--r-- | tapset/aux_syscalls.stp | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/tapset/aux_syscalls.stp b/tapset/aux_syscalls.stp new file mode 100644 index 00000000..71e479f0 --- /dev/null +++ b/tapset/aux_syscalls.stp @@ -0,0 +1,169 @@ +/* + * Return the 64 bit long value of the + * scalar user space pointer parameter + * CALLERS: + * kernel.syscall.time + * kernel.syscall.stime + */ +function __uget_num:long(u_addr:long) +%{ + long long val = 0; + if(get_user(val, + (unsigned long *)(unsigned long)THIS->u_addr)) + { + THIS->__retvalue = -EFAULT; + } else + THIS->__retvalue = val; +%} + +/* + * Return a time_t/subseconds_t member value of + * struct timeval user space pointer parameter + * CALLERS: + * kernel.syscall.gettimeofday + * kernel.syscall.settimeofday + */ +function __uget_tv_m:long(u_addr:long,member:long) +%{ + struct timeval tv; + char *ptr = (char *)(unsigned long)THIS->u_addr; + size_t sz = sizeof(struct timeval); + + if(copy_from_user(&tv,ptr,sz)) + THIS->__retvalue = -EFAULT; + else if(THIS->member == 0) + THIS->__retvalue = tv.tv_sec; + else + THIS->__retvalue = tv.tv_usec; +%} + +/* + * Return a integer member value of struct + * timezone user space pointer parameter + * CALLERS: + * kernel.syscall.gettimeofday + * kernel.syscall.settimeofday + */ +function __uget_tz_m:long(u_addr:long,member:long) +%{ + struct timezone tz; + char *ptr = (char *)(unsigned long)THIS->u_addr; + size_t sz = sizeof(struct timezone); + + if(copy_from_user(&tz,ptr,sz)) + THIS->__retvalue = -EFAULT; + else if(THIS->member == 0) + THIS->__retvalue = tz.tz_minuteswest; + else + THIS->__retvalue = tz.tz_dsttime; +%} + +/* + * Return integer member value of struct + * timex user space pointer parameter + * CALLERS: + * kernel.syscall.adjtimex + */ +function __uget_timex_m:long(u_addr:long,member:long) +%{ + struct timex tx; + char *ptr = (char *)(unsigned long)THIS->u_addr; + size_t sz = sizeof(struct timex); + + if(copy_from_user(&tx,ptr,sz)) + THIS->__retvalue = -EFAULT; + switch(THIS->member) { + case 0: THIS->__retvalue = tx.modes; + break; + case 1: THIS->__retvalue = tx.offset; + break; + case 2: THIS->__retvalue = tx.freq; + break; + case 3: THIS->__retvalue = tx.maxerror; + break; + case 4: THIS->__retvalue = tx.esterror; + break; + case 5: THIS->__retvalue = tx.status; + break; + case 6: THIS->__retvalue = tx.constant; + break; + case 7: THIS->__retvalue = tx.precision; + break; + case 8: THIS->__retvalue = tx.tolerance; + break; + case 9: THIS->__retvalue = tx.time.tv_sec; + break; + case 10: THIS->__retvalue = tx.time.tv_usec; + break; + case 11: THIS->__retvalue = tx.tick; + break; + default: THIS->__retvalue = -1; + } +%} + +/* + * Return the symbolic string representation + * of the struct timex.mode member of adjtimex + * consult `man adjtimex` for more information + * CALLERS: + * kernel.syscall.adjtimex + */ +function _adjtx_mode_str(f) { + if((f & 32769) == 32769) bs="ADJ_OFFSET_SINGLESHOT|".bs + if(f & 16384) bs="ADJ_TICK|".bs + if(f & 32) bs="ADJ_TIMECONST|".bs + if(f & 16) bs="ADJ_STATUS|".bs + if(f & 8) bs="ADJ_ESTERROR|".bs + if(f & 4) bs="ADJ_MAXERROR|".bs + if(f & 2) bs="ADJ_FREQUENCY|".bs + if(f & 1 && ((f & 32769) != 32769)) bs="ADJ_OFFSET|".bs + return substr(bs,0,strlen(bs)-1) +} + +/* + * Return the clock_t member value of the + * struct tms user space pointer parameter + * CALLERS: + * kernel.syscall.times + */ +%{ #include <linux/times.h> %} +function __uget_tms_m:long(u_addr:long,member:long) +%{ + struct tms tms; + char *ptr = (char *)(unsigned long)THIS->u_addr; + size_t sz = sizeof(struct tms); + + if(copy_from_user(&tms,ptr,sz)) + THIS->__retvalue = -EFAULT; + switch(THIS->member) { + case 0: THIS->__retvalue = tms.tms_utime; + break; + case 1: THIS->__retvalue = tms.tms_stime; + break; + case 2: THIS->__retvalue = tms.tms_cutime; + break; + case 3: THIS->__retvalue = tms.tms_cstime; + break; + default: THIS->__retvalue = -1; + } +%} + +/* + * Return a time_t / long member value of the + * struct timespec user space pointer parameter + * CALLERS: + * kernel.syscall.nanosleep + */ +function __uget_ts_m:long(u_addr:long,member:long) +%{ + struct timespec ts; + char *ptr = (char *)(unsigned long)THIS->u_addr; + size_t sz = sizeof(struct timespec); + + if(copy_from_user(&ts,ptr,sz)) + THIS->__retvalue = -EFAULT; + else if(THIS->member == 0) + THIS->__retvalue = ts.tv_sec; + else + THIS->__retvalue = ts.tv_nsec; +%} |