[rft] testing BSD accounting format on different archs

From: Tim Schmielau
Date: Sat Apr 24 2004 - 06:51:09 EST

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I intend to modify the format of the BSD accounting file in a way that

a) allows cross-platform compatibility using patched acct tools and
b) is fully binary compatible with the current format.

To make sure these goals are met on all platforms, I'd like to see the
output of the attached program on all linux ports *except* x86
(I want to keep my Inbox manageable:).

Thanks a lot,
Tim#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <linux/types.h>

typedef __u16 comp_t;
#define ACCT_COMM 16

struct acct_v0
{
char ac_flag; /* Accounting Flags */
/*
* No binary format break with 2.0 - but when we hit 32bit uid we'll
* have to bite one
*/
__u16 ac_uid; /* Accounting Real User ID */
__u16 ac_gid; /* Accounting Real Group ID */
__u16 ac_tty; /* Accounting Control Terminal */
__u32 ac_btime; /* Accounting Process Creation Time */
comp_t ac_utime; /* Accounting User Time */
comp_t ac_stime; /* Accounting System Time */
comp_t ac_etime; /* Accounting Elapsed Time */
comp_t ac_mem; /* Accounting Average Memory Usage */
comp_t ac_io; /* Accounting Chars Transferred */
comp_t ac_rw; /* Accounting Blocks Read or Written */
comp_t ac_minflt; /* Accounting Minor Pagefaults */
comp_t ac_majflt; /* Accounting Major Pagefaults */
comp_t ac_swaps; /* Accounting Number of Swaps */
__u32 ac_exitcode; /* Accounting Exitcode */
char ac_comm[ACCT_COMM + 1]; /* Accounting Command Name */
char ac_pad[10]; /* Accounting Padding Bytes */
};

struct acct_v1
{
char ac_flag; /* Flags */
char ac_version; /* Always set to ACCT_VERSION */
/* for binary compatibility back until 2.0 */
__u16 ac_uid16; /* LSB of Real User ID */
__u16 ac_gid16; /* LSB of Real Group ID */
__u16 ac_tty; /* Control Terminal */
__u32 ac_btime; /* Process Creation Time */
comp_t ac_utime; /* User Time */
comp_t ac_stime; /* System Time */
comp_t ac_etime; /* Elapsed Time */
comp_t ac_mem; /* Average Memory Usage */
comp_t ac_io; /* Chars Transferred */
comp_t ac_rw; /* Blocks Read or Written */
comp_t ac_minflt; /* Minor Pagefaults */
comp_t ac_majflt; /* Major Pagefaults */
comp_t ac_swaps; /* Number of Swaps */
/*
* We still need to identify the platforms that used to have no padding
* before ac_exitcode
*/
__u16 ac_ahz; /* AHZ */
__u32 ac_exitcode; /* Exitcode */
char ac_comm[ACCT_COMM + 1]; /* Command Name */
__u8 ac_etime_hi; /* Elapsed Time MSB */
__u16 ac_etime_lo; /* Elapsed Time LSB */
__u32 ac_uid; /* Real User ID */
__u32 ac_gid; /* Real Group ID */
};

struct acct_v2
{
char ac_flag; /* Flags */
char ac_version; /* Always set to ACCT_VERSION */
/* for binary compatibility back until 2.0 */
__u16 ac_uid16; /* LSB of Real User ID */
__u16 ac_gid16; /* LSB of Real Group ID */
__u16 ac_tty; /* Control Terminal */
__u32 ac_btime; /* Process Creation Time */
comp_t ac_utime; /* User Time */
comp_t ac_stime; /* System Time */
comp_t ac_etime; /* Elapsed Time */
comp_t ac_mem; /* Average Memory Usage */
comp_t ac_io; /* Chars Transferred */
comp_t ac_rw; /* Blocks Read or Written */
comp_t ac_minflt; /* Minor Pagefaults */
comp_t ac_majflt; /* Major Pagefaults */
comp_t ac_swaps; /* Number of Swaps */
/*
* We still need to identify the platforms that used to have no padding
* before ac_exitcode
*/
__u32 ac_exitcode; /* Exitcode */
__u16 ac_ahz; /* AHZ */
char ac_comm[ACCT_COMM + 1]; /* Command Name */
__u8 ac_etime_hi; /* Elapsed Time MSB */
__u16 ac_etime_lo; /* Elapsed Time LSB */
__u32 ac_uid; /* Real User ID */
__u32 ac_gid; /* Real Group ID */
};

struct acct_v0 ac_v0;
struct acct_v1 ac_v1;
struct acct_v2 ac_v2;

#define of(base,member) (int)((void *)&(base.member)-(void *)&base)
#define offsets2(member) of(ac_v1,member),of(ac_v2,member)
#define offsets3(member) of(ac_v0,member),of(ac_v1,member),of(ac_v2,member)
#define offsets12(member0,member1) of(ac_v0,member0),of(ac_v1,member1),of(ac_v2,member1)

char filename[] = "acct_test_XXXXXX";

int main(void)
{
int i, fd;
unsigned char buf[16];

system("uname -m -p -i -o");

printf("\n"
" v0 v1 v2\n"
"ac_flag %3d %3d %3d\n"
"ac_version %3d %3d\n"
"ac_uid16 %3d %3d %3d\n"
"ac_gid16 %3d %3d %3d\n"
"ac_tty %3d %3d %3d\n"
"ac_btime %3d %3d %3d\n"
"ac_utime %3d %3d %3d\n"
"ac_stime %3d %3d %3d\n"
"ac_etime %3d %3d %3d\n"
"ac_mem %3d %3d %3d\n"
"ac_io %3d %3d %3d\n"
"ac_rw %3d %3d %3d\n"
"ac_minflt %3d %3d %3d\n"
"ac_majflt %3d %3d %3d\n"
"ac_swaps %3d %3d %3d\n"
"ac_ahz %3d %3d\n"
"ac_exitcode %3d %3d %3d\n"
"ac_comm %3d %3d %3d\n"
"ac_etime_hi %3d %3d\n"
"ac_etime_lo %3d %3d\n"
"ac_uid %3d %3d\n"
"ac_gid %3d %3d\n"
"sizeof(struct acct)\n"
" %3d %3d %3d\n\n",
offsets3(ac_flag),
offsets2(ac_version),
offsets12(ac_uid,ac_uid16),
offsets12(ac_gid,ac_gid16),
offsets3(ac_tty),
offsets3(ac_btime),
offsets3(ac_utime),
offsets3(ac_stime),
offsets3(ac_etime),
offsets3(ac_mem),
offsets3(ac_io),
offsets3(ac_rw),
offsets3(ac_minflt),
offsets3(ac_majflt),
offsets3(ac_swaps),
offsets2(ac_ahz),
offsets3(ac_exitcode),
offsets3(ac_comm),
offsets2(ac_etime_hi),
offsets2(ac_etime_lo),
offsets2(ac_uid),
offsets2(ac_gid),
(int)sizeof(ac_v0), (int)sizeof(ac_v1), (int)sizeof(ac_v2)
);

ac_v0.ac_flag = 0x01;
ac_v0.ac_uid = 0x0304;
ac_v0.ac_gid = 0x0506;
ac_v0.ac_tty = 0x0708;
ac_v0.ac_btime = 0x090a0b0c;
ac_v0.ac_utime = 0x0d0e;
ac_v0.ac_stime = 0x0f10;
ac_v0.ac_etime = 0x1112;
ac_v0.ac_mem = 0x1314;
ac_v0.ac_io = 0x1516;
ac_v0.ac_rw = 0x1718;
ac_v0.ac_minflt = 0x191a;
ac_v0.ac_majflt = 0x1b1c;
ac_v0.ac_swaps = 0x1d1e;
ac_v0.ac_exitcode = 0x21222324;
for (i=0; i<17; i++)
ac_v0.ac_comm[i] = 0x25+i;
for (i=0; i<10; i++)
ac_v0.ac_pad[i] = 0xf0+i;

ac_v1.ac_flag = ac_v2.ac_flag = 0x01;
ac_v1.ac_version = ac_v2.ac_version = 0x02;
ac_v1.ac_uid16 = ac_v2.ac_uid16 = 0x0304;
ac_v1.ac_gid16 = ac_v2.ac_gid16 = 0x0506;
ac_v1.ac_tty = ac_v2.ac_tty = 0x0708;
ac_v1.ac_btime = ac_v2.ac_btime = 0x090a0b0c;
ac_v1.ac_utime = ac_v2.ac_utime = 0x0d0e;
ac_v1.ac_stime = ac_v2.ac_stime = 0x0f10;
ac_v1.ac_etime = ac_v2.ac_etime = 0x1112;
ac_v1.ac_mem = ac_v2.ac_mem = 0x1314;
ac_v1.ac_io = ac_v2.ac_io = 0x1516;
ac_v1.ac_rw = ac_v2.ac_rw = 0x1718;
ac_v1.ac_minflt = ac_v2.ac_minflt = 0x191a;
ac_v1.ac_majflt = ac_v2.ac_majflt = 0x1b1c;
ac_v1.ac_swaps = ac_v2.ac_swaps = 0x1d1e;
ac_v1.ac_ahz = ac_v2.ac_ahz = 0x1f20;
ac_v1.ac_exitcode = ac_v2.ac_exitcode = 0x21222324;
for (i=0; i<17; i++)
ac_v1.ac_comm[i] = ac_v2.ac_comm[i] = 0x25+i;
ac_v1.ac_etime_hi = ac_v2.ac_etime_hi = 0x36;
ac_v1.ac_etime_lo = ac_v2.ac_etime_lo = 0x3738;
ac_v1.ac_uid = ac_v2.ac_uid = 0x393a3b3c;
ac_v1.ac_gid = ac_v2.ac_gid = 0x3d3e3f40;

fd = mkstemp(filename);
if (write(fd, &ac_v0, 64) != 64) {
perror("write ac_v0");
return 1;
}
if (write(fd, &ac_v1, 64) != 64) {
perror("write ac_v1");
return 1;
}
if (write(fd, &ac_v2, 64) < 64) {
perror("write ac_v2");
return 1;
}

if (lseek(fd, 0, SEEK_SET)!=0) {
perror("seek");
return 1;
}

for (i=0; i<12; i++) {
if (read(fd, buf, 16) != 16) {
perror("read");
return 1;
}
printf(" %02x %02x %02x %02x %02x %02x %02x %02x"
" %02x %02x %02x %02x %02x %02x %02x %02x\n",
buf[0x00], buf[0x01], buf[0x02], buf[0x03],
buf[0x04], buf[0x05], buf[0x06], buf[0x07],
buf[0x08], buf[0x09], buf[0x0a], buf[0x0b],
buf[0x0c], buf[0x0d], buf[0x0e], buf[0x0f]
);
if ((i&3) == 3)
printf("\n");
}

close(fd);

return 0;
}

Next message: Francois Romieu: "Re: [PATCH r8169] ethtool support and sane speed selection/detection"
Previous message: Zoltan Boszormenyi: "Re: kernel/softirq.c issues under 2.6.5"
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