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test_lab_7.cc
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/*
* test-lab-4-a /classfs/dir1 /classfs/dir2
*
* Test correctness of locking and cache coherence by creating
* and deleting files in the same underlying directory
* via two different ccfs servers.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <dirent.h>
#include <string.h>
#include <fcntl.h>
#include <errno.h>
#include <time.h>
#include <sys/shm.h>
#include <sys/ipc.h>
#include "yfs_client.h"
char d1[512], d2[512];
char d0[512], d3[512];
extern int errno;
char normal[1000];
char big[20001];
char huge[65536];
#define LAB_ERR(fmt, args...) fprintf(stderr,"test-lab-6:" fmt, ##args)
int chmod1(char* d, const char* f, unsigned long mode)
{
char name[512];
sprintf(name, "%s/%s", d, f);
errno = 0;
if (chmod(name, mode) != 0) {
return errno;
}
return 0;
}
int chown1(char* d, const char* f, unsigned int u_id, unsigned int g_id)
{
char name[512];
sprintf(name, "%s/%s", d, f);
errno = 0;
if (chown(name, u_id, g_id) != 0) {
return errno;
}
return 0;
}
void mkdirm(const char*d, const char *f, unsigned long mode)
{
int fd;
char n[512];
sleep(1);
sprintf(n, "%s/%s", d, f);
fd = mkdir(n,mode);
if (fd < 0) {
LAB_ERR("create(%s):%s\n",
n, strerror(errno));
exit(1);
}
close(fd);
}
void
createm(const char *d, const char *f, const char *in, unsigned long mode)
{
int fd;
char n[512];
/*
* The FreeBSD NFS client only invalidates its caches
* cache if the mtime changes by a whole second.
*/
sleep(1);
sprintf(n, "%s/%s", d, f);
fd = creat(n, mode);
if(fd < 0){
LAB_ERR("create(%s): %s\n",
n, strerror(errno));
exit(1);
}
close(fd);
}
void
create1(const char *d, const char *f, const char *in)
{
int fd;
char n[512];
/*
* The FreeBSD NFS client only invalidates its caches
* cache if the mtime changes by a whole second.
*/
sleep(1);
sprintf(n, "%s/%s", d, f);
fd = creat(n, 0666);
if(fd < 0){
fprintf(stderr, "test-lab-6: create(%s): %s\n",
n, strerror(errno));
exit(1);
}
if(write(fd, in, strlen(in)) != strlen(in)){
fprintf(stderr, "test-lab-6: write(%s): %s\n",
n, strerror(errno));
exit(1);
}
if(close(fd) != 0){
fprintf(stderr, "test-lab-6: close(%s): %s\n",
n, strerror(errno));
exit(1);
}
}
void
check1(const char *d, const char *f, const char *in)
{
int fd, cc;
char n[512], buf[21000];
sprintf(n, "%s/%s", d, f);
fd = open(n, 0);
if(fd < 0){
fprintf(stderr, "test-lab-5: open(%s): %s\n",
n, strerror(errno));
exit(1);
}
errno = 0;
cc = read(fd, buf, sizeof(buf) - 1);
if(cc != strlen(in)){
fprintf(stderr, "test-lab-5: read(%s) returned too little %d%s%s\n",
n,
cc,
errno ? ": " : "",
errno ? strerror(errno) : "");
exit(1);
}
close(fd);
buf[cc] = '\0';
//if(strncmp(buf, in, strlen(n)) != 0){ //[tmac] Are you kidding me??
if(strncmp(buf, in, strlen(in)) != 0){
fprintf(stderr, "test-lab-5: read(%s) got \"%s\", not \"%s\"\n",
n, buf, in);
exit(1);
}
}
void
unlink1(const char *d, const char *f)
{
char n[512];
sleep(1);
sprintf(n, "%s/%s", d, f);
if(unlink(n) != 0){
fprintf(stderr, "test-lab-5: unlink(%s): %s\n",
n, strerror(errno));
exit(1);
}
}
void
checknot(const char *d, const char *f)
{
int fd;
char n[512];
sprintf(n, "%s/%s", d, f);
fd = open(n, 0);
if(fd >= 0){
fprintf(stderr, "test-lab-4-a: open(%s) succeeded for deleted file\n", n);
exit(1);
}
}
void
append1(const char *d, const char *f, const char *in)
{
int fd;
char n[512];
sleep(1);
sprintf(n, "%s/%s", d, f);
fd = open(n, O_WRONLY|O_APPEND);
if(fd < 0){
fprintf(stderr, "test-lab-4-a: append open(%s): %s\n",
n, strerror(errno));
exit(1);
}
if(write(fd, in, strlen(in)) != strlen(in)){
fprintf(stderr, "test-lab-4-a: append write(%s): %s\n",
n, strerror(errno));
exit(1);
}
if(close(fd) != 0){
fprintf(stderr, "test-lab-4-a: append close(%s): %s\n",
n, strerror(errno));
exit(1);
}
}
// write n characters starting at offset start,
// one at a time.
void
write1(const char *d, const char *f, int start, int n, char c)
{
int fd;
char name[512];
sleep(1);
sprintf(name, "%s/%s", d, f);
fd = open(name, O_WRONLY|O_CREAT, 0666);
if (fd < 0 && errno == EEXIST)
fd = open(name, O_WRONLY, 0666);
if(fd < 0){
fprintf(stderr, "test-lab-4-a: open(%s): %s\n",
name, strerror(errno));
exit(1);
}
if(lseek(fd, start, 0) != (off_t) start){
fprintf(stderr, "test-lab-4-a: lseek(%s, %d): %s\n",
name, start, strerror(errno));
exit(1);
}
for(int i = 0; i < n; i++){
if(write(fd, &c, 1) != 1){
fprintf(stderr, "test-lab-4-a: write(%s): %s\n",
name, strerror(errno));
exit(1);
}
if(fsync(fd) != 0){
fprintf(stderr, "test-lab-4-a: fsync(%s): %s\n",
name, strerror(errno));
exit(1);
}
}
if(close(fd) != 0){
fprintf(stderr, "test-lab-4-a: close(%s): %s\n",
name, strerror(errno));
exit(1);
}
}
// check that the n bytes at offset start are all c.
void
checkread(const char *d, const char *f, int start, int n, char c)
{
int fd;
char name[512];
sleep(1);
sprintf(name, "%s/%s", d, f);
fd = open(name, 0);
if(fd < 0){
fprintf(stderr, "test-lab-4-a: open(%s): %s\n",
name, strerror(errno));
exit(1);
}
if(lseek(fd, start, 0) != (off_t) start){
fprintf(stderr, "test-lab-4-a: lseek(%s, %d): %s\n",
name, start, strerror(errno));
exit(1);
}
for(int i = 0; i < n; i++){
char xc;
if(read(fd, &xc, 1) != 1){
fprintf(stderr, "test-lab-4-a: read(%s): %s\n",
name, strerror(errno));
exit(1);
}
if(xc != c){
fprintf(stderr, "test-lab-4-a: checkread off %d %02x != %02x\n",
start + i, xc, c);
exit(1);
}
}
close(fd);
}
void
createn(const char *d, const char *prefix, int nf, bool possible_dup)
{
int fd, i;
char n[512];
/*
* The FreeBSD NFS client only invalidates its caches
* cache if the mtime changes by a whole second.
*/
sleep(1);
for(i = 0; i < nf; i++){
sprintf(n, "%s/%s-%d", d, prefix, i);
fd = creat(n, 0666);
if (fd < 0 && possible_dup && errno == EEXIST)
continue;
if(fd < 0){
fprintf(stderr, "test-lab-4-a: create(%s): %s\n",
n, strerror(errno));
exit(1);
}
if(write(fd, &i, sizeof(i)) != sizeof(i)){
fprintf(stderr, "test-lab-4-a: write(%s): %s\n",
n, strerror(errno));
exit(1);
}
if(close(fd) != 0){
fprintf(stderr, "test-lab-4-a: close(%s): %s\n",
n, strerror(errno));
exit(1);
}
}
}
void
checkn(const char *d, const char *prefix, int nf)
{
int fd, i, cc, j;
char n[512];
for(i = 0; i < nf; i++){
sprintf(n, "%s/%s-%d", d, prefix, i);
fd = open(n, 0);
if(fd < 0){
fprintf(stderr, "test-lab-4-a: open(%s): %s\n",
n, strerror(errno));
exit(1);
}
j = -1;
cc = read(fd, &j, sizeof(j));
if(cc != sizeof(j)){
fprintf(stderr, "test-lab-4-a: read(%s) returned too little %d%s%s\n",
n,
cc,
errno ? ": " : "",
errno ? strerror(errno) : "");
exit(1);
}
if(j != i){
fprintf(stderr, "test-lab-4-a: checkn %s contained %d not %d\n",
n, j, i);
exit(1);
}
close(fd);
}
}
void
unlinkn(const char *d, const char *prefix, int nf)
{
char n[512];
int i;
sleep(1);
for(i = 0; i < nf; i++){
sprintf(n, "%s/%s-%d", d, prefix, i);
if(unlink(n) != 0){
fprintf(stderr, "test-lab-4-a: unlink(%s): %s\n",
n, strerror(errno));
exit(1);
}
}
}
int
compar(const void *xa, const void *xb)
{
char *a = *(char**)xa;
char *b = *(char**)xb;
return strcmp(a, b);
}
void
dircheck(const char *d, int nf)
{
DIR *dp;
struct dirent *e;
char *names[1000];
int nnames = 0, i;
dp = opendir(d);
if(dp == 0){
fprintf(stderr, "test-lab-4-a: opendir(%s): %s\n", d, strerror(errno));
exit(1);
}
while((e = readdir(dp))){
if(e->d_name[0] != '.'){
if(nnames >= sizeof(names)/sizeof(names[0])){
fprintf(stderr, "warning: too many files in %s\n", d);
}
names[nnames] = (char *) malloc(strlen(e->d_name) + 1);
strcpy(names[nnames], e->d_name);
nnames++;
}
}
closedir(dp);
if(nf != nnames){
fprintf(stderr, "test-lab-4-a: wanted %d dir entries, got %d\n", nf, nnames);
exit(1);
}
/* check for duplicate entries */
qsort(names, nnames, sizeof(names[0]), compar);
for(i = 0; i < nnames-1; i++){
if(strcmp(names[i], names[i+1]) == 0){
fprintf(stderr, "test-lab-4-a: duplicate directory entry for %s\n", names[i]);
exit(1);
}
}
for(i = 0; i < nnames; i++)
free(names[i]);
}
void
reap (int pid)
{
int wpid, status;
wpid = waitpid (pid, &status, 0);
if (wpid < 0) {
perror("waitpid");
exit(1);
}
if (wpid != pid) {
fprintf(stderr, "unexpected pid reaped: %d\n", wpid);
exit(1);
}
if(!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
fprintf(stderr, "child exited unhappily\n");
exit(1);
}
}
#define PATH "/tmp"
#define BUFFER_SIZE 16
#define ID 1
int copyfile(const char* src, char* dest)
{
int ch;
FILE *psrc, *pdest;
psrc = fopen(src, "r");
if (psrc == NULL) {
printf("open %s error\n", src);
return -1;
}
pdest = fopen(dest, "w");
if (pdest == NULL) {
printf("open %s error\n", dest);
return -1;
}
while ((ch=getc(psrc)) != EOF) {
fputc(ch, pdest);
}
fclose(psrc);
fclose(pdest);
return 0;
}
yfs_client *test;
yfs_client::status
verify(const char* name, unsigned short *id)
{
yfs_client::status st;
int ret;
ret = copyfile(name, "test.pem");
if (ret!=0) {
printf("copy %s error\n", name);
return -1;
}
st = test->verify("test.pem", id);
return st;
}
int readm(char *d, const char *f)
{
int fd;
char name[512];
char c;
sleep(1);
sprintf(name, "%s/%s", d, f);
errno = 0;
fd = open(name, 0);
if (fd < 0) {
return errno;
}
if (read(fd, &c, 1) != 1) {
return errno;
}
close(fd);
return 0;
}
int readdirm(char *d, const char *d1)
{
char n[512];
DIR *dp;
struct dirent *entry;
sprintf(n, "%s/%s", d, d1);
if ((dp=opendir(n)) == NULL) {
return errno;
}
if ((entry=readdir(dp)) == NULL) {
return errno;
}
return 0;
}
int writedirm(char *d, const char* d1, const char* file, const char* dir)
{
char n1[512], n2[512];
sprintf(n1, "%s/%s/%s", d, d1, file);
sprintf(n2, "%s/%s/%s", d, d1, dir);
if (creat(n1, 0666) < 0) {
return errno;
}
if (mkdir(n2, 0777) < 0) {
return errno;
}
return 0;
}
int writem(char *d, const char *f, int n, char c)
{
int fd;
char name[512];
sleep(1);
sprintf(name, "%s/%s", d, f);
errno = 0;
fd = open(name, O_WRONLY);
if (fd < 0) {
return errno;
}
for (int i=0; i<n; i++) {
if (write(fd, &c, 1) != 1) {
return errno;
}
}
if (close(fd) != 0) {
return errno;
}
return 0;
}
int
main(int argc, char *argv[])
{
int pid, i;
char *shmAddr;
key_t key;
int shmid;
char tmacname[16];
char basename[5];
int tmacnum;
unsigned short uid;
int ret;
int certnum, filenum, dirnum;
certnum = 0;
filenum = 0;
dirnum = 0;
yfs_client::status st;
key = ftok(PATH, ID);
shmid = shmget(key, BUFFER_SIZE, 0666|IPC_CREAT);
if(shmid == -1)
{
printf("FILE %s line %d:share memory get %s\n",
__FILE__, __LINE__, strerror(errno));
exit(1);
}
test = new yfs_client();
/* test certificate check */
printf("Certificate verification:\n");
printf("Legal certificate:");
st = verify("./cert/root.pem", &uid);
if (st != yfs_client::OK || uid != 0) {
printf("ERROR\n");
} else {
st = verify("./cert/user1.pem", &uid);
if (st != yfs_client::OK || uid != 1003) {
printf("ERROR\n");
} else {
printf("OK\n");
certnum++;
}
}
printf("Wrong Format:");
st = verify("./cert/error.pem", &uid);
if (st != yfs_client::ERRPEM) {
printf("ERROR\n");
} else {
printf("OK\n");
certnum++;
}
printf("Ilegal CA:");
st = verify("./cert/fake_root.pem", &uid);
if (st != yfs_client::EINVA) {
printf("ERROR\n");
} else {
printf("OK\n");
certnum++;
}
printf("Expired:");
st = verify("./cert/time.pem", &uid);
if (st != yfs_client::ECTIM) {
printf("ERROR\n");
} else {
printf("OK\n");
certnum++;
}
printf("Score: %d/40\n\n", certnum*10);
sprintf(d0, "%s/d%d", "./yfs0", getpid());
sprintf(d1, "%s/d%d", "./yfs1", getpid());
sprintf(d2, "%s/d%d", "./yfs2", getpid());
sprintf(d3, "%s/d%d", "./yfs3", getpid());
if (mkdir(d1, 0777) != 0) {
LAB_ERR("failed: mkdir(%s):%s\n",
d1, strerror(errno));
exit(1);
}
printf("Test File Permission:\n");
createm(d1, "a", "", 0666);
createm(d1, "r", "", 0666);
createm(d1, "w", "", 0666);
createm(d1, "n", "", 0666);
createm(d1, "gr", "", 0666);
createm(d1, "gw", "", 0666);
createm(d1, "gn", "", 0666);
createm(d1, "or", "", 0666);
createm(d1, "ow", "", 0666);
createm(d1, "on", "", 0666);
mkdirm(d1, "da", 0777);
mkdirm(d1, "dr", 0777);
mkdirm(d1, "dw", 0777);
mkdirm(d1, "dga", 0777);
mkdirm(d1, "dgr", 0777);
mkdirm(d1, "dgw", 0777);
mkdirm(d1, "doa", 0777);
mkdirm(d1, "dor", 0777);
mkdirm(d1, "dow", 0777);
if ( (ret = writem(d1, "a", 64, '1')) != 0) {
goto write_error;
}
if ( (ret = writem(d1, "w", 64, '1')) != 0) {
goto write_error;
}
printf(" owner write PASSED\n");
filenum ++;
goto write_ok;
write_error:
printf(" owner write ERROR\n");
write_ok:
if ( (ret = readm(d1, "a")) != 0) {
goto read_error;
}
if ( (ret = readm(d1, "r")) != 0) {
goto read_error;
}
printf(" owner read PASSED\n");
filenum ++;
goto read_ok;
read_error:
printf(" owner read ERROR\n");
read_ok:
if ( (ret = writem(d2, "a", 64, '1')) != 0) {
goto writeg_error;
}
if ( (ret = writem(d2, "gw", 64, '1')) != 0) {
goto writeg_error;
}
printf(" group write PASSED\n");
filenum ++;
goto writeg_ok;
writeg_error:
printf(" group write ERROR\n");
writeg_ok:
if ( (ret = readm(d2, "a")) != 0) {
goto readg_error;
}
if ( (ret = readm(d2, "gr")) != 0) {
goto readg_error;
}
printf(" group read PASSED\n");
filenum ++;
goto readg_ok;
readg_error:
printf(" group read ERROR\n");
readg_ok:
if ( (ret = writem(d3, "a", 64, '1')) != 0) {
goto writeo_error;
}
if ( (ret = writem(d3, "ow", 64, '1')) != 0) {
goto writeo_error;
}
printf(" other write PASSED\n");
filenum ++;
goto writeo_ok;
writeo_error:
printf(" other write ERROR\n");
writeo_ok:
if ( (ret = readm(d3, "a")) != 0) {
goto reado_error;
}
if ( (ret = readm(d3, "or")) != 0) {
goto reado_error;
}
printf(" other read PASSED\n");
filenum ++;
goto reado_ok;
reado_error:
printf(" other read ERROR\n");
reado_ok:
createm(d1, "ch", "", 0666);
if (readm(d1, "ch") != 0) {
goto chmod_error;
}
if (writem(d1, "ch", 64, '1') != 0) {
goto chmod_error;
}
if ((ret = chmod1(d1, "ch", 0420)) != 0) {
goto chmod_error;
}
if ((ret=writem(d1, "ch", 64, '1')) != EACCES) {
goto chmod_error;
}
if ((ret=readm(d2, "ch")) != EACCES) {
goto chmod_error;
}
if ((ret=readm(d3, "ch")) != EACCES) {
goto chmod_error;
}
if ((ret=writem(d3, "ch", 64, '1')) != EACCES) {
goto chmod_error;
}
printf(" owner chmod PASSED\n");
filenum ++;
goto chmod_ok;
chmod_error:
printf(" owner chmod ERROR\n");
chmod_ok:
if (chmod1(d2, "ch", 0666) != EACCES) {
goto chmodo_error;
}
if (chmod1(d3, "ch", 0666) != EACCES) {
goto chmodo_error;
}
if ((ret=writem(d1, "ch", 64, '1')) != EACCES) {
goto chmodo_error;
}
if ((ret=readm(d2, "ch")) != EACCES) {
goto chmodo_error;
}
if ((ret=readm(d3, "ch")) != EACCES) {
goto chmodo_error;
}
if ((ret=writem(d3, "ch", 64, '1')) != EACCES) {
goto chmodo_error;
}
printf(" other chmod PASSED\n");
filenum++;
goto chmodo_ok;
chmodo_error:
printf(" other chmod ERROR\n");
chmodo_ok:
createm(d1, "co", "", 0642);
if (chown1(d0, "co", 1004,1005) != 0) {
goto chown_error;
}
if ((ret=writem(d2, "co", 64, '1')) != 0){
goto chown_error;
}
if ((ret=writem(d3, "co", 64, '1')) != EACCES) {
goto chown_error;
}
if ((ret=readm(d1, "co")) != EPERM) {
goto chown_error;
}
printf(" root chown PASSED\n");
filenum++;
goto chown_ok;
chown_error:
printf(" root chown ERROR\n");
chown_ok:
if (chown1(d1, "co", 1003, 1003) != EACCES) {
goto chownn_end;
}
if (chown1(d2, "co", 1003, 1003) != EACCES) {
goto chownn_end;
}
if (chown1(d3, "co", 1003, 1003) != EACCES) {
goto chownn_end;
}
printf(" non-root chown PASSED\n");
filenum++;
goto chownn_ok;
chownn_end:
printf(" non-root chown ERROR\n");
chownn_ok:
printf("Score: %d/100\n\n", filenum*10);
printf("Test Dirtectory Permission\n");
if (writedirm(d1, "da", "file1", "dir1") != 0) {
goto writed_error;
}
if (writedirm(d1, "dr", "file2", "dir2") != EACCES) {
goto writed_error;
}
if (writedirm(d1, "dw", "file3", "dir3") != 0) {
goto writed_error;
}
printf(" owner write PASSED\n");
dirnum ++;
goto writed_ok;
writed_error:
printf(" owner write ERROR\n");
writed_ok:
if (readdirm(d1, "da") != 0) {
goto readd_error;
}
if (readdirm(d1, "dr") != 0) {
goto readd_error;
}
if (readdirm(d1, "dw") != EACCES) {
goto readd_error;
}
printf(" owner read PASSED\n");
dirnum ++;
goto readd_ok;
readd_error:
printf(" owner read OK\n");
readd_ok:
if (writedirm(d2, "dga", "file4", "dir4") != 0) {
goto writedg_error;
}
if (writedirm(d2, "dgw", "file6", "dir6") != 0) {
goto writedg_error;
}
printf(" group write PASSED\n");
dirnum ++;
goto writedg_ok;
writedg_error:
printf(" group write ERROR\n");
writedg_ok:
if (readdirm(d2, "dga") != 0) {
goto readdg_error;
}
if (readdirm(d2, "dgr") != 0) {
goto readdg_error;
}
printf(" group read PASSED\n");
dirnum ++;
goto readdg_ok;
readdg_error:
printf(" group read OK\n");
readdg_ok:
if (writedirm(d1, "doa", "file7", "dir7") != 0) {
goto writedo_error;
}
if (writedirm(d1, "dow", "file9", "dir9") != 0) {
goto writedo_error;
}
printf(" other write PASSED\n");
dirnum ++;
goto writedo_ok;
writedo_error:
printf(" other write ERROR\n");
writedo_ok:
if (readdirm(d1, "doa") != 0) {
goto readdo_error;
}
if (readdirm(d1, "dor") != 0) {
goto readdo_error;
}
if (readdirm(d1, "dow") != EACCES) {
goto readdo_error;
}
printf(" other read PASSED\n");
dirnum ++;
goto readdo_ok;
readdo_error:
printf(" other read OK\n");
readdo_ok:
printf("Score: %d/60\n",dirnum * 10);
/*
setbuf(stdout, 0);
srand((unsigned)time(NULL));
for(i = 0; i < sizeof(normal)-1; ++i)
normal[i] = '0' + rand() % 10;
normal[sizeof(normal)-1] = '\0';
for(i = 0; i < sizeof(big)-1; i++)
big[i] = 'x';
big[sizeof(big)-1] = '\0';
for(i = 0; i < sizeof(huge)-1; i++)
huge[i] = '0';
huge[sizeof(huge)-1] = '\0';
printf("Create then read: ");
create1(d1, "f1", "aaa");
check1(d2, "f1", "aaa");
check1(d1, "f1", "aaa");
printf("OK\n");