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mrecv.c
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mrecv.c
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/*
* mrecv.c
* Copyright (C) 2008-2012 KLab Inc.
*/
#include "makuosan.h"
#include <openssl/md5.h>
static void mrecv_req(mdata *data, struct sockaddr_in *addr);
static void mrecv_ack(mdata *data, struct sockaddr_in *addr);
/******************************************************************
*
* Receive common functions (private)
*
*******************************************************************/
static mfile *mrecv_mfdel(mfile *m)
{
mfile *r;
if(!m){
return(NULL);
}
r = m->next;
if(m->fd != -1){
close(m->fd);
m->fd = -1;
if(!S_ISLNK(m->fs.st_mode) && S_ISREG(m->fs.st_mode)){
mremove(moption.base_dir, m->tn);
}
}
if(m->link){
m->link->link = NULL;
m->link = NULL;
}
while((m->mark = delmark(m->mark)));
mfdel(m);
return(r);
}
static int mrecv_decrypt(mdata *data, struct sockaddr_in *addr)
{
int i;
MD5_CTX ctx;
uint8_t hash[16];
if(data->head.flags & MAKUO_FLAG_CRYPT){
if(!moption.cryptena){
lprintf(0, "%s: [warn] encrypt packet from %s. I have not key!\n", __func__, inet_ntoa(addr->sin_addr));
return(-1);
}
if(data->head.szdata){
for(i=0;i<data->head.szdata;i+=8){
BF_decrypt((BF_LONG *)(data->data + i), &EncKey);
}
MD5_Init(&ctx);
MD5_Update(&ctx, data->data, data->head.szdata);
MD5_Final(hash, &ctx);
if(memcmp(hash,data->head.hash,16)){
lprintf(0, "[error] %s: protocol checksum error from %s\n", __func__, inet_ntoa(addr->sin_addr));
return(-1);
}
}
}else{
if(moption.cryptena){
lprintf(0, "%s: [warn] not encrypt packet from %s. I have key!\n", __func__, inet_ntoa(addr->sin_addr));
return(-1);
}
}
return(0);
}
static int mrecv_packet(int s, mdata *data, struct sockaddr_in *addr)
{
int recvsize;
socklen_t addr_len;
while(1){
if(!loop_flag){
return(-1);
}
addr_len = sizeof(struct sockaddr_in);
recvsize = recvfrom(s, data, sizeof(mdata), 0, (struct sockaddr *)addr, &addr_len);
if(recvsize == -1){
if(errno == EAGAIN){
return(-1);
}
if(errno == EINTR){
continue;
}else{
lprintf(0, "[error] %s: %s recv error\n", __func__, strerror(errno));
return(-1);
}
}
if(recvsize < sizeof(data->head)){
lprintf(0, "[error] %s: recv head size error from %s\n", __func__, inet_ntoa(addr->sin_addr));
return(-1);
}
data->head.szdata = ntohs(data->head.szdata);
data->head.flags = ntohs(data->head.flags);
data->head.reqid = ntohl(data->head.reqid);
data->head.seqno = ntohl(data->head.seqno);
data->head.maddr = data->head.maddr;
data->head.mport = data->head.mport;
data->head.error = ntohl(data->head.error);
if(data->head.maddr != moption.maddr.sin_addr.s_addr){
continue; /* other group packet */
}
if(data->head.mport != moption.maddr.sin_port){
continue; /* other group packet */
}
if(data->head.vproto != PROTOCOL_VERSION){
continue; /* other protocol */
}
if(!mrecv_decrypt(data, addr)){
break;
}
}
return(0);
}
/******************************************************************
*
* ack receive functions (for source node tasks)
*
*******************************************************************/
static int mrecv_ack_search(mhost **lpt, mfile **lpm, mdata *data, struct sockaddr_in *addr)
{
mhost *t;
mfile *m;
*lpt = NULL;
*lpm = NULL;
t = member_add(&addr->sin_addr, NULL);
if(!t){
lprintf(0, "%s: member not found %s\n", __func__, inet_ntoa(addr->sin_addr));
return(-1);
}
for(m=mftop[0];m;m=m->next){
if(m->mdata.head.reqid == data->head.reqid){
break;
}
}
if(!m){
return(-1);
}
*lpt = t;
*lpm = m;
mtimeget(&m->lastrecv);
return(0);
}
static void mrecv_ack_report(mfile *m, mhost *t, mdata *data)
{
if(data->head.nstate == MAKUO_RECVSTATE_OPENERROR){
cprintf(0, m->comm, "error: %s %s:%s\n", strerror(data->head.error), t->hostname, m->fn);
lprintf(0, "[error] %s: %s rid=%06d %s %s:%s\n",
__func__,
strerror(data->head.error),
data->head.reqid,
strrstate(data->head.nstate),
t->hostname,
m->fn);
}
if(data->head.nstate == MAKUO_RECVSTATE_WRITEERROR){
cprintf(0, m->comm, "error: %s %s:%s\n", strerror(data->head.error), t->hostname, m->fn);
lprintf(0, "[error] %s: %s rid=%06d %s %s:%s\n",
__func__,
strerror(data->head.error),
data->head.reqid,
strrstate(data->head.nstate),
t->hostname,
m->fn);
}
if(data->head.nstate == MAKUO_RECVSTATE_CLOSEERROR){
cprintf(0, m->comm, "error: close error %s:%s\n", t->hostname, m->fn);
lprintf(0, "[error] %s: close error rid=%06d %s %s:%s\n",
__func__,
data->head.reqid,
strrstate(data->head.nstate),
t->hostname,
m->fn);
}
}
static void mrecv_ack_ping(mdata *data, struct sockaddr_in *addr)
{
member_add(&addr->sin_addr, data);
}
static void mrecv_ack_send_mark(mdata *data, mfile *m, mhost *t)
{
uint32_t l;
uint32_t h;
data->p = data->data;
while(!data_safeget32(data, &l)){
if(data_safeget32(data, &h)){
break;
}
seq_setmark(m, l, h);
}
}
static void mrecv_ack_send(mdata *data, struct sockaddr_in *addr)
{
mhost *t;
mfile *m;
if(mrecv_ack_search(&t, &m, data, addr)){
return;
}
if(data->head.nstate == MAKUO_RECVSTATE_MARK){
if(m->mdata.head.nstate == MAKUO_SENDSTATE_MARK){
mrecv_ack_send_mark(data, m, t);
}
}
if(data->head.nstate == MAKUO_RECVSTATE_OPEN){
if(m->mdata.head.nstate == MAKUO_SENDSTATE_DATA){
mrecv_ack_send_mark(data, m, t);
return;
}
}
if(!set_hoststate(t, m, data->head.nstate)){
lprintf(0, "[error] %s: host state error\n", __func__);
}
mrecv_ack_report(m, t, data);
}
static void mrecv_ack_md5(mdata *data, struct sockaddr_in *addr)
{
uint8_t *s;
mhost *t;
mfile *m;
if(mrecv_ack_search(&t, &m, data, addr)){
return;
}
s = get_hoststate(t,m);
if(!s){
lprintf(0, "%s: not allocate state area\n", __func__);
return;
}
if(*s != data->head.nstate){
if(data->head.nstate == MAKUO_RECVSTATE_MD5OK){
cprintf(1, m->comm, "%s: OK %s\r\n", t->hostname, m->fn);
lprintf(8, "%s: OK %s:%s\n", __func__, t->hostname, m->fn);
}
if(data->head.nstate == MAKUO_RECVSTATE_MD5NG){
cprintf(0, m->comm, "%s: NG %s\r\n", t->hostname, m->fn);
lprintf(0, "%s: NG %s:%s\n", __func__, t->hostname, m->fn);
}
}
*s = data->head.nstate;
mrecv_ack_report(m, t, data);
}
static void mrecv_ack_dsync(mdata *data, struct sockaddr_in *addr)
{
mhost *t;
mfile *m;
if(mrecv_ack_search(&t, &m, data, addr)){
return;
}
for(m=mftop[MFSEND];m;m=m->next){
if(m->mdata.head.reqid == data->head.reqid){
if(m->comm){
break;
}
if(m->mdata.head.nstate == MAKUO_SENDSTATE_BREAK){
break;
}
}
}
if(!m){
return;
}
if(data->head.nstate == MAKUO_RECVSTATE_OPEN){
if(m->mdata.head.nstate == MAKUO_SENDSTATE_DATA){
if(data->head.seqno == m->mdata.head.seqno){
if(!set_hoststate(t, m, data->head.nstate)){
lprintf(0, "[error] %s: not allocate state area\n", __func__);
}
}
return;
}
}
if(!set_hoststate(t, m, data->head.nstate)){
lprintf(0, "[error] %s: not allocate state area\n", __func__);
}
}
static void mrecv_ack_del(mdata *data, struct sockaddr_in *addr)
{
mhost *t;
mfile *m;
uint32_t err;
uint32_t res;
uint16_t len;
char path[PATH_MAX];
if(mrecv_ack_search(&t, &m, data, addr)){
return;
}
if(m->mdata.head.nstate == MAKUO_SENDSTATE_CLOSE){
if(data->head.nstate != MAKUO_RECVSTATE_CLOSE){
return;
}
}
if(!set_hoststate(t, m, data->head.nstate)){
lprintf(0, "%s: not allocate state area\n", __func__);
return;
}
if(m->mdata.head.nstate == MAKUO_SENDSTATE_OPEN){
m->initstate = 1;
m->sendwait = 0;
m->mdata.head.nstate = MAKUO_SENDSTATE_CLOSE;
if(data->head.nstate == MAKUO_RECVSTATE_OPEN){
data->p=data->data;
m->mdata.p=m->mdata.data;
m->mdata.head.szdata = 0;
while(!data_safeget16(data, &len)){
m->mdata.head.nstate = MAKUO_SENDSTATE_DATA;
data_safeget32(data, &res);
len -= sizeof(uint32_t);
data_safeget(data, path, len);
path[len] = 0;
err = 0;
if(m->dryrun){
lprintf(1, "%s: (dryrun) delete %s rid=%d\n", __func__, path, m->mdata.head.reqid);
}else{
if(!mremove(NULL,path)){
lprintf(1, "%s: delete %s rid=%d\n", __func__, path, m->mdata.head.reqid);
}else{
err = errno;
lprintf(0, "%s: delete error %s (%s) rid=%d\n", __func__, path, strerror(errno), m->mdata.head.reqid);
}
}
data_safeset16(&(m->mdata), len + sizeof(uint32_t));
data_safeset32(&(m->mdata), err);
data_safeset(&(m->mdata), path, len);
}
}
}
}
static void mrecv_ack(mdata *data, struct sockaddr_in *addr)
{
switch(data->head.opcode){
case MAKUO_OP_PING:
mrecv_ack_ping(data, addr);
break;
case MAKUO_OP_SEND:
mrecv_ack_send(data, addr);
break;
case MAKUO_OP_MD5:
mrecv_ack_md5(data, addr);
break;
case MAKUO_OP_DSYNC:
mrecv_ack_dsync(data, addr);
break;
case MAKUO_OP_DEL:
mrecv_ack_del(data, addr);
break;
/* 機能追加はここへ */
}
}
/******************************************************************
*
* Request receive functions (for destination node tasks)
*
*******************************************************************/
static mfile *mrecv_req_search(mdata *data, struct sockaddr_in *addr)
{
mfile *m = mftop[MFRECV];
while(m){
if(!memcmp(&m->addr, addr, sizeof(m->addr)) && m->mdata.head.reqid == data->head.reqid){
break;
}
m = m->next;
}
return(m);
}
static void mrecv_req_ping(mdata *data, struct sockaddr_in *addr)
{
mping *p;
mfile *a;
char buff[MAKUO_HOSTNAME_MAX + 1];
member_add(&addr->sin_addr, data);
a = mkack(data, addr, MAKUO_RECVSTATE_NONE);
if(gethostname(buff, sizeof(buff)) == -1){
buff[0] = 0;
}
p = (mping *)(a->mdata.data);
p->hostnamelen = strlen(buff);
p->versionlen = strlen(PACKAGE_VERSION);
a->mdata.head.szdata = sizeof(mping) + p->hostnamelen + p->versionlen;
a->mdata.p = p->data;
memcpy(a->mdata.p, buff, p->hostnamelen);
a->mdata.p += p->hostnamelen;
memcpy(a->mdata.p, PACKAGE_VERSION, p->versionlen);
a->mdata.p += p->versionlen;
p->hostnamelen = htons(p->hostnamelen);
p->versionlen = htons(p->versionlen);
msend(a);
}
static void mrecv_req_exit(mdata *data, struct sockaddr_in *addr)
{
mhost *t = member_get(&(addr->sin_addr));
if(!t){
return;
}
member_del_message(0, t, "member exit");
member_del(t);
}
static void mrecv_req_send_break(mfile *m, mdata *r)
{
msend(mkack(r, &(m->addr), MAKUO_RECVSTATE_IGNORE));
mrecv_mfdel(m);
}
static void mrecv_req_send_stat(mfile *m, mdata *r)
{
struct stat fs;
if(moption.dontrecv){
m->mdata.head.nstate = MAKUO_RECVSTATE_READONLY;
}else{
if(r->head.flags & MAKUO_FLAG_SYNC){
if(m->mdata.head.nstate == MAKUO_RECVSTATE_NONE){
m->mdata.head.nstate = MAKUO_RECVSTATE_DELETEOK;
if(r->head.flags & MAKUO_FLAG_DRYRUN){
if(lstat(m->fn, &fs) == -1 && errno == ENOENT){
m->mdata.head.nstate = MAKUO_RECVSTATE_DELETENG;
}
}else{
if(mremove(NULL, m->fn) == -1){
m->mdata.head.nstate = MAKUO_RECVSTATE_DELETENG;
}
}
}
}else{
if(S_ISLNK(m->fs.st_mode)){
m->mdata.head.nstate = linkcmp(m);
}else{
if(lstat(m->fn, &fs) == -1){
m->mdata.head.nstate = MAKUO_RECVSTATE_UPDATE;
}else{
m->mdata.head.nstate = statcmp(&(m->fs), &fs);
}
}
}
}
msend(mkack(&(m->mdata), &(m->addr), m->mdata.head.nstate));
}
static void mrecv_req_send_open(mfile *m, mdata *r)
{
char fpath[PATH_MAX];
char tpath[PATH_MAX];
if(m->mdata.head.nstate != MAKUO_RECVSTATE_UPDATE){
if(m->mdata.head.ostate == MAKUO_RECVSTATE_UPDATE){
msend(mkack(&(m->mdata), &(m->addr), m->mdata.head.nstate));
}
return;
}
mtempname(moption.base_dir, m->fn, m->tn);
sprintf(fpath, "%s/%s", moption.base_dir, m->fn);
sprintf(tpath, "%s/%s", moption.base_dir, m->tn);
m->mdata.head.ostate = m->mdata.head.nstate;
m->mdata.head.nstate = MAKUO_RECVSTATE_OPENERROR;
if(S_ISLNK(m->fs.st_mode)){
if(!mcreatelink(moption.base_dir, m->tn, m->ln)){
m->mdata.head.nstate = MAKUO_RECVSTATE_OPEN;
set_filestat(tpath, m->fs.st_uid, m->fs.st_gid, m->fs.st_mode);
}else{
lprintf(0, "%s: symlink error %s -> %s\n", __func__, m->ln, m->fn);
m->mdata.head.error = errno;
}
}else{
if(S_ISDIR(m->fs.st_mode)){
if(!is_dir(fpath)){
mcreatedir(moption.base_dir, m->fn, m->fs.st_mode);
mkdir(fpath, m->fs.st_mode);
}
if(is_dir(fpath)){
m->mdata.head.nstate = MAKUO_RECVSTATE_OPEN;
set_filestat(fpath, m->fs.st_uid, m->fs.st_gid, m->fs.st_mode);
}else{
lprintf(0,"%s: mkdir error %s\n", __func__, m->fn);
m->mdata.head.error = errno;
}
}
if(S_ISREG(m->fs.st_mode)){
m->fd = mcreatefile(moption.base_dir, m->tn, m->fs.st_mode);
if(m->fd != -1){
m->mdata.head.nstate = MAKUO_RECVSTATE_OPEN;
}else{
lprintf(0, "%s: %s %s\n", __func__, strerror(errno), m->fn);
m->mdata.head.error = errno;
}
}
if(S_ISCHR(m->fs.st_mode)){
if(!mcreatenode(moption.base_dir, m->tn, m->fs.st_mode, m->fs.st_rdev)){
m->mdata.head.nstate = MAKUO_RECVSTATE_OPEN;
set_filestat(tpath, m->fs.st_uid, m->fs.st_gid, m->fs.st_mode);
}else{
lprintf(0, "%s: %s %s\n", __func__, strerror(errno), m->fn);
m->mdata.head.error = errno;
}
}
if(S_ISBLK(m->fs.st_mode)){
if(!mcreatenode(moption.base_dir, m->tn, m->fs.st_mode, m->fs.st_rdev)){
m->mdata.head.nstate = MAKUO_RECVSTATE_OPEN;
set_filestat(tpath, m->fs.st_uid, m->fs.st_gid, m->fs.st_mode);
}else{
lprintf(0, "%s: %s %s\n", __func__, strerror(errno), m->fn);
m->mdata.head.error = errno;
}
}
if(S_ISFIFO(m->fs.st_mode)){
if(!mcreatenode(moption.base_dir, m->tn, m->fs.st_mode, m->fs.st_rdev)){
m->mdata.head.nstate = MAKUO_RECVSTATE_OPEN;
set_filestat(tpath, m->fs.st_uid, m->fs.st_gid, m->fs.st_mode);
}else{
lprintf(0, "%s: %s %s\n", __func__, strerror(errno), m->fn);
m->mdata.head.error = errno;
}
}
}
msend(mkack(&(m->mdata), &(m->addr), m->mdata.head.nstate));
}
static void mrecv_req_send_mark(mfile *m, mdata *r)
{
mmark *mm;
mfile *a;
if(m->mdata.head.nstate != MAKUO_RECVSTATE_OPEN){
return;
}
if(m->mdata.head.seqno < m->seqnomax){
seq_addmark(m, m->mdata.head.seqno, m->seqnomax);
m->mdata.head.seqno = m->seqnomax;
}
m->lickflag = 1;
a = mkack(&(m->mdata),&(m->addr),MAKUO_RECVSTATE_MARK);
if(!a){
lprintf(0, "[error] %s: out of momory\n", __func__);
return;
}
if(a->mdata.head.szdata){
msend(a);
return;
}
for(mm=m->mark;mm;mm=mm->next){
if(data_safeset32(&(a->mdata), mm->l)){
break;
}
if(data_safeset32(&(a->mdata), mm->h)){
a->mdata.head.szdata -= sizeof(uint32_t);
break;
}
}
msend(a);
}
static void mrecv_req_send_data_write(mfile *m, mdata *r)
{
off_t offset;
if(r->head.szdata == 0){
return;
}
offset = r->head.seqno;
offset *= MAKUO_BUFFER_SIZE;
if(lseek(m->fd, offset, SEEK_SET) == -1){
m->mdata.head.error = errno;
m->mdata.head.ostate = m->mdata.head.nstate;
m->mdata.head.nstate = MAKUO_RECVSTATE_WRITEERROR;
msend(mkack(&(m->mdata), &(m->addr), m->mdata.head.nstate));
lprintf(0, "[error] %s: seek error (%s) seq=%u\n",
__func__,
strerror(m->mdata.head.error),
(int)(r->head.seqno));
return; /* lseek error */
}
if(write(m->fd, r->data, r->head.szdata) == -1){
m->mdata.head.error = errno;
m->mdata.head.ostate = m->mdata.head.nstate;
m->mdata.head.nstate = MAKUO_RECVSTATE_WRITEERROR;
msend(mkack(&(m->mdata), &(m->addr), m->mdata.head.nstate));
lprintf(0, "[error] %s: write error (%s) seqno=%d size=%d %s\n",
__func__,
strerror(m->mdata.head.error),
(int)(r->head.seqno),
r->head.szdata,
m->fn);
return; /* write error */
}
m->recvcount++;
}
static void mrecv_req_send_data_retry(mfile *m, mdata *r)
{
mmark *mm;
mfile *a = mkack(&(m->mdata), &(m->addr), MAKUO_RECVSTATE_OPEN);
if(!a){
lprintf(0, "%s: out of momory\n", __func__);
return;
}
if(a->mdata.head.szdata == 0){
data_safeset32(&(a->mdata), m->mdata.head.seqno);
data_safeset32(&(a->mdata), r->head.seqno);
for(mm=m->mark;mm;mm=mm->next){
if(data_safeset32(&(a->mdata), mm->l)){
break;
}
if(data_safeset32(&(a->mdata), mm->h)){
a->mdata.head.szdata -= sizeof(uint32_t);
break;
}
}
}
msend(a);
}
static void mrecv_req_send_data(mfile *m, mdata *r)
{
if(m->mdata.head.nstate != MAKUO_RECVSTATE_OPEN){
return;
}
if(m->lickflag){
if(seq_delmark(m, r->head.seqno)){
mrecv_req_send_data_write(m, r);
}
return;
}
if(m->mdata.head.seqno > r->head.seqno){
if(seq_delmark(m, r->head.seqno)){
mrecv_req_send_data_write(m, r);
}
return;
}
if(m->mdata.head.seqno < r->head.seqno){
mrecv_req_send_data_retry(m, r);
seq_addmark(m, m->mdata.head.seqno, r->head.seqno);
m->mdata.head.seqno = r->head.seqno;
}
mrecv_req_send_data_write(m, r);
m->mdata.head.seqno++;
}
static void mrecv_req_send_close(mfile *m, mdata *r)
{
struct stat fs;
struct utimbuf mftime;
char path[PATH_MAX];
if(m->mdata.head.nstate == MAKUO_RECVSTATE_CLOSE ||
m->mdata.head.nstate == MAKUO_RECVSTATE_CLOSEERROR){
msend(mkack(&(m->mdata), &(m->addr), m->mdata.head.nstate));
return;
}
m->mdata.head.ostate = m->mdata.head.nstate;
if(m->mdata.head.nstate != MAKUO_RECVSTATE_OPEN){
m->mdata.head.nstate = MAKUO_RECVSTATE_CLOSE;
msend(mkack(&(m->mdata), &(m->addr), m->mdata.head.nstate));
return;
}
mftime.actime = m->fs.st_ctime;
mftime.modtime = m->fs.st_mtime;
if(S_ISLNK(m->fs.st_mode)){
if(!mrename(moption.base_dir, m->tn, m->fn)){
m->mdata.head.nstate = MAKUO_RECVSTATE_CLOSE;
msend(mkack(&(m->mdata), &(m->addr), m->mdata.head.nstate));
}else{
m->mdata.head.nstate = MAKUO_RECVSTATE_CLOSEERROR;
msend(mkack(&(m->mdata), &(m->addr), m->mdata.head.nstate));
lprintf(0, "[error] %s: close error %s -> %s\n", __func__, m->ln, m->fn);
mremove(moption.base_dir, m->tn);
}
return;
}
if(S_ISDIR(m->fs.st_mode)){
m->mdata.head.nstate = MAKUO_RECVSTATE_CLOSE;
msend(mkack(&(m->mdata), &(m->addr), m->mdata.head.nstate));
sprintf(path, "%s/%s", moption.base_dir, m->fn);
utime(path, &mftime);
return;
}
if(!S_ISREG(m->fs.st_mode)){
if(!mrename(moption.base_dir, m->tn, m->fn)){
m->mdata.head.nstate = MAKUO_RECVSTATE_CLOSE;
msend(mkack(&(m->mdata), &(m->addr), m->mdata.head.nstate));
sprintf(path, "%s/%s", moption.base_dir, m->tn);
utime(path, &mftime);
}else{
m->mdata.head.nstate = MAKUO_RECVSTATE_CLOSEERROR;
msend(mkack(&(m->mdata), &(m->addr), m->mdata.head.nstate));
lprintf(0, "[error] %s: close error %s (can't rename)\n", __func__, m->fn);
mremove(moption.base_dir, m->tn);
}
return;
}
if(m->fd == -1){
m->mdata.head.nstate = MAKUO_RECVSTATE_CLOSEERROR;
msend(mkack(&(m->mdata), &(m->addr), m->mdata.head.nstate));
lprintf(0, "[error] %s: bat discriptor close error %s\n", __func__, m->fn);
mremove(moption.base_dir, m->tn);
return;
}
if(fstat(m->fd, &fs) == -1){
m->mdata.head.nstate = MAKUO_RECVSTATE_CLOSEERROR;
m->mdata.head.error = errno;
msend(mkack(&(m->mdata), &(m->addr), m->mdata.head.nstate));
lprintf(0, "[error] %s: %s fstat error %s\n", __func__, strerror(errno), m->fn);
return;
}
if(close(m->fd) == -1){
m->fd = -1;
m->mdata.head.nstate = MAKUO_RECVSTATE_CLOSEERROR;
m->mdata.head.error = errno;
msend(mkack(&(m->mdata), &(m->addr), m->mdata.head.nstate));
lprintf(0, "[error] %s: %s close error %s\n", __func__, strerror(errno), m->fn);
return;
}
m->fd = -1;
if(fs.st_size != m->fs.st_size){
m->mdata.head.nstate = MAKUO_RECVSTATE_CLOSEERROR;
msend(mkack(&(m->mdata), &(m->addr), m->mdata.head.nstate));
lprintf(0, "[error] %s: close error %s (file size mismatch %d != %d)\n", __func__, m->fn, (int)(fs.st_size), (int)(m->fs.st_size));
lprintf(0, "[error] %s: seq=%d max=%d mark=%d recv=%d\n", __func__, m->mdata.head.seqno, m->seqnomax, m->markcount, m->recvcount);
mremove(moption.base_dir, m->tn);
return;
}
if(!mrename(moption.base_dir, m->tn, m->fn)){
m->mdata.head.nstate = MAKUO_RECVSTATE_CLOSE;
msend(mkack(&(m->mdata), &(m->addr), m->mdata.head.nstate));
sprintf(path, "%s/%s", moption.base_dir, m->fn);
set_filestat(path, m->fs.st_uid, m->fs.st_gid, m->fs.st_mode);
utime(path, &mftime);
}else{
m->mdata.head.nstate = MAKUO_RECVSTATE_CLOSEERROR;
msend(mkack(&(m->mdata), &(m->addr), m->mdata.head.nstate));
lprintf(0, "%s: close error %s (can't rename)\n", __func__, m->fn);
mremove(moption.base_dir, m->tn);
}
}
static void mrecv_req_send_last(mfile *m, mdata *r)
{
msend(mkack(r, &(m->addr), MAKUO_RECVSTATE_LAST));
mrecv_mfdel(m);
}
static void mrecv_req_send_next(mfile *m, mdata *r)
{
switch(r->head.nstate){
case MAKUO_SENDSTATE_STAT:
mrecv_req_send_stat(m, r);
break;
case MAKUO_SENDSTATE_OPEN:
mrecv_req_send_open(m, r);
break;
case MAKUO_SENDSTATE_DATA:
mrecv_req_send_data(m, r);
break;
case MAKUO_SENDSTATE_MARK:
mrecv_req_send_mark(m, r);
break;
case MAKUO_SENDSTATE_CLOSE:
mrecv_req_send_close(m, r);
break;
case MAKUO_SENDSTATE_LAST:
mrecv_req_send_last(m, r);
break;
case MAKUO_SENDSTATE_BREAK:
mrecv_req_send_break(m, r);
break;
}
}
static mfile *mrecv_req_send_create(mdata *data, struct sockaddr_in *addr)
{
mstat fs;
mfile *m;
uint16_t fnlen;
uint16_t lnlen;
uint32_t ldev;
uint32_t hdev;
uint64_t rdev;
if((m = mrecv_req_search(data, addr))){
return(m);
}
if(data->head.nstate != MAKUO_SENDSTATE_STAT){
return(NULL);
}
/* create object */
if(!(m = mfadd(MFRECV))){
lprintf(0, "[error] %s: out of momory\n", __func__);
return(NULL);
}
/* copy header and addr */
memcpy(&(m->addr), addr, sizeof(m->addr));
memcpy(&(m->mdata.head), &(data->head), sizeof(m->mdata.head));
/* read mstat */
data->p = data->data;
data_safeget(data, &fs, sizeof(fs));
/* stat = mstat */
m->fs.st_mode = ntohl(fs.mode);
m->fs.st_uid = ntohs(fs.uid);
m->fs.st_gid = ntohs(fs.gid);
m->fs.st_size = ((off_t)ntohl(fs.sizeh) << 32) + (off_t)ntohl(fs.sizel);
m->fs.st_mtime = ntohl(fs.mtime);
m->fs.st_ctime = ntohl(fs.ctime);
fnlen = ntohs(fs.fnlen);
lnlen = ntohs(fs.lnlen);
/* read filename */
data_safeget(data, m->fn, fnlen);
m->fn[fnlen] = 0;
/* read linkname */
data_safeget(data, m->ln, lnlen);
m->ln[lnlen] = 0;
/* rdev */
data_safeget32(data, &hdev);
data_safeget32(data, &ldev);
rdev = hdev;
rdev <<= 32;
rdev |= ldev;
m->fs.st_rdev = (dev_t)rdev;
/* Number of blocks */
m->seqnomax = m->fs.st_size / MAKUO_BUFFER_SIZE;
if(m->fs.st_size % MAKUO_BUFFER_SIZE){
m->seqnomax++;
}
return(m);
}
static void mrecv_req_send(mdata *data, struct sockaddr_in *addr)
{
mfile *m;
if((m = mrecv_req_send_create(data, addr))){
mtimeget(&(m->lastrecv));
mrecv_req_send_next(m, data);
}else{
if(data->head.nstate != MAKUO_SENDSTATE_DATA){
msend(mkack(data, addr, MAKUO_RECVSTATE_IGNORE));
}
}
}
static void mrecv_req_md5_open(mfile *m, mdata *data, struct sockaddr_in *addr)
{
int l;
mhash *h;
if(!m){
m = mfadd(MFRECV);
memcpy(&(m->addr), addr, sizeof(m->addr));
memcpy(&(m->mdata.head), &(data->head), sizeof(m->mdata.head));
h = (mhash *)(data->data);
l = ntohs(h->fnlen);
memcpy(m->fn, h->filename, l);
m->fn[l] = 0;
memcpy(m->mdata.data, h->hash, 16);
m->fd = open(m->fn, O_RDONLY);
if(m->fd == -1){
m->mdata.head.error = errno;
m->mdata.head.nstate = MAKUO_RECVSTATE_OPENERROR;
}else{
m->mdata.head.nstate = MAKUO_RECVSTATE_OPEN;
m->link = mkack(&(m->mdata), &(m->addr), MAKUO_RECVSTATE_NONE);
m->link->link = m;
MD5_Init(&(m->md5));
}
}
mtimeget(&(m->lastrecv));
msend(mkack(&(m->mdata), &(m->addr), m->mdata.head.nstate));
}
static void mrecv_req_md5_close(mfile *m, mdata *data, struct sockaddr_in *addr)
{
if(m){
if(m->link){
close(m->fd);
m->fd = -1;
MD5_Final(m->mdata.data, &(m->md5));
m->link->mdata.head.nstate = MAKUO_RECVSTATE_CLOSE;
m->link->link = NULL;
m->link = NULL;
}
mrecv_mfdel(m);
}
msend(mkack(data, addr, MAKUO_RECVSTATE_CLOSE));
}
static void mrecv_req_md5(mdata *data, struct sockaddr_in *addr)
{
mfile *m = mrecv_req_search(data, addr);
switch(data->head.nstate){
case MAKUO_SENDSTATE_OPEN:
mrecv_req_md5_open(m, data, addr);
break;
case MAKUO_SENDSTATE_CLOSE:
mrecv_req_md5_close(m, data, addr);
break;
}
}
static int dsync_write(int fd, char *base, uint8_t sta, uint16_t len, uint32_t mod)
{
int r;
size_t s;
fd_set wfds;
char buff[PATH_MAX + sizeof(sta) + sizeof(mod) + sizeof(len)];
char *p = buff;
if(!loop_flag){
return(1);
}
if(!strcmp(base, ".")){
return(0);
}
while(len >= 2){
if(memcmp(base, "./", 2)){
break;
}else{
base += 2;
len -= 2;
if(!len){
return(0);
}
}
}
while(*base == '/'){
base++;
len--;
if(!len){
return(0);
}
}
*(uint16_t *)p = len + sizeof(mod);
p += sizeof(len);
*(uint32_t *)p = mod;
p += sizeof(mod);
memcpy(p, base, len);
p = buff;
s = sizeof(len) + sizeof(mod) + len;
while(s){
FD_ZERO(&wfds);
FD_SET(fd,&wfds);
if(select(1024, NULL, &wfds, NULL, NULL) < 0){
if(!loop_flag){
return(1);
}
continue;
}
if(FD_ISSET(fd,&wfds)){
r = write(fd, p, s);
if(r == -1){
if(errno == EINTR){
continue;
}
lprintf(0, "[error] %s: write error %s\n", __func__, base);
return(-1);
}else{
s -= r;