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- #include "all.h"
- #include "9p1.h"
- #define CHAR(x) *p++ = f->x
- #define SHORT(x) { ulong vvv = f->x; p[0] = vvv; p[1] = vvv>>8; p += 2; }
- #define VLONG(q) p[0] = (q); p[1] = (q)>>8; p[2] = (q)>>16; p[3] = (q)>>24; p += 4
- #define LONG(x) { ulong vvv = f->x; VLONG(vvv); }
- #define BYTES(x,n) memmove(p, f->x, n); p += n
- #define STRING(x,n) strncpy((char*)p, f->x, n); p += n
- int
- convS2M9p1(Oldfcall *f, uchar *ap)
- {
- uchar *p;
- int t;
- p = ap;
- CHAR(type);
- t = f->type;
- SHORT(tag);
- switch(t)
- {
- default:
- print("convS2M9p1: bad type: %d\n", t);
- return 0;
- case Tnop9p1:
- case Tosession9p1:
- break;
- case Tsession9p1:
- BYTES(chal, sizeof(f->chal));
- break;
- case Tflush9p1:
- SHORT(oldtag);
- break;
- case Tattach9p1:
- SHORT(fid);
- STRING(uname, sizeof(f->uname));
- STRING(aname, sizeof(f->aname));
- BYTES(ticket, sizeof(f->ticket));
- BYTES(auth, sizeof(f->auth));
- break;
- case Toattach9p1:
- SHORT(fid);
- STRING(uname, sizeof(f->uname));
- STRING(aname, sizeof(f->aname));
- BYTES(ticket, NAMELEN);
- break;
- case Tclone9p1:
- SHORT(fid);
- SHORT(newfid);
- break;
- case Twalk9p1:
- SHORT(fid);
- STRING(name, sizeof(f->name));
- break;
- case Tclwalk9p1:
- SHORT(fid);
- SHORT(newfid);
- STRING(name, sizeof(f->name));
- break;
- case Topen9p1:
- SHORT(fid);
- CHAR(mode);
- break;
- case Tcreate9p1:
- SHORT(fid);
- STRING(name, sizeof(f->name));
- LONG(perm);
- CHAR(mode);
- break;
- case Tread9p1:
- SHORT(fid);
- LONG(offset); VLONG(0);
- SHORT(count);
- break;
- case Twrite9p1:
- SHORT(fid);
- LONG(offset); VLONG(0);
- SHORT(count);
- p++;
- if((uchar*)p == (uchar*)f->data) {
- p += f->count;
- break;
- }
- BYTES(data, f->count);
- break;
- case Tclunk9p1:
- case Tremove9p1:
- case Tstat9p1:
- SHORT(fid);
- break;
- case Twstat9p1:
- SHORT(fid);
- BYTES(stat, sizeof(f->stat));
- break;
- /*
- */
- case Rnop9p1:
- case Rosession9p1:
- case Rflush9p1:
- break;
- case Rsession9p1:
- BYTES(chal, sizeof(f->chal));
- BYTES(authid, sizeof(f->authid));
- BYTES(authdom, sizeof(f->authdom));
- break;
- case Rerror9p1:
- STRING(ename, sizeof(f->ename));
- break;
- case Rclone9p1:
- case Rclunk9p1:
- case Rremove9p1:
- case Rwstat9p1:
- SHORT(fid);
- break;
- case Rwalk9p1:
- case Ropen9p1:
- case Rcreate9p1:
- case Rclwalk9p1:
- SHORT(fid);
- LONG(qid.path);
- LONG(qid.version);
- break;
- case Rattach9p1:
- SHORT(fid);
- LONG(qid.path);
- LONG(qid.version);
- BYTES(rauth, sizeof(f->rauth));
- break;
- case Roattach9p1:
- SHORT(fid);
- LONG(qid.path);
- LONG(qid.version);
- break;
- case Rread9p1:
- SHORT(fid);
- SHORT(count);
- p++;
- if((uchar*)p == (uchar*)f->data) {
- p += f->count;
- break;
- }
- BYTES(data, f->count);
- break;
- case Rwrite9p1:
- SHORT(fid);
- SHORT(count);
- break;
- case Rstat9p1:
- SHORT(fid);
- BYTES(stat, sizeof(f->stat));
- break;
- }
- return p - (uchar*)ap;
- }
- /*
- * buggery to give false qid for
- * the top 2 levels of the dump fs
- */
- static ulong
- fakeqid9p1(Dentry *f)
- {
- ulong q;
- int c;
- q = f->qid.path;
- if(q == (QPROOT|QPDIR)) {
- c = f->name[0];
- if(c >= '0' && c <= '9') {
- q = 3|QPDIR;
- c = (c-'0')*10 + (f->name[1]-'0');
- if(c >= 1 && c <= 12)
- q = 4|QPDIR;
- }
- }
- return q;
- }
- int
- convD2M9p1(Dentry *f, char *ap)
- {
- uchar *p;
- ulong q;
- p = (uchar*)ap;
- STRING(name, sizeof(f->name));
- memset(p, 0, 2*NAMELEN);
- uidtostr((char*)p, f->uid);
- p += NAMELEN;
- uidtostr((char*)p, f->gid);
- p += NAMELEN;
- q = fakeqid9p1(f);
- VLONG(q);
- LONG(qid.version);
- {
- q = f->mode & 0x0fff;
- if(f->mode & DDIR)
- q |= PDIR;
- if(f->mode & DAPND)
- q |= PAPND;
- if(f->mode & DLOCK)
- q |= PLOCK;
- VLONG(q);
- }
- LONG(atime);
- LONG(mtime);
- LONG(size); VLONG(0);
- VLONG(0);
- return p - (uchar*)ap;
- }
- #undef CHAR
- #undef SHORT
- #undef LONG
- #undef VLONG
- #undef BYTES
- #undef STRING
- #define CHAR(x) f->x = *p++
- #define SHORT(x) f->x = (p[0] | (p[1]<<8)); p += 2
- #define VLONG(q) q = (p[0] | (p[1]<<8) | (p[2]<<16) | (p[3]<<24)); p += 4
- #define LONG(x) VLONG(f->x)
- #define BYTES(x,n) memmove(f->x, p, n); p += n
- #define STRING(x,n) memmove(f->x, p, n); p += n
- int
- convM2S9p1(uchar *ap, Oldfcall *f, int n)
- {
- uchar *p;
- int t;
- p = ap;
- CHAR(type);
- t = f->type;
- SHORT(tag);
- switch(t)
- {
- default:
- /*
- * only whine if it couldn't be a 9P2000 Tversion9p1.
- */
- if(t != 19 || ap[4] != 100)
- print("convM2S9p1: bad type: %d\n", f->type);
- return 0;
- case Tnop9p1:
- case Tosession9p1:
- break;
- case Tsession9p1:
- BYTES(chal, sizeof(f->chal));
- break;
- case Tflush9p1:
- SHORT(oldtag);
- break;
- case Tattach9p1:
- SHORT(fid);
- BYTES(uname, sizeof(f->uname));
- BYTES(aname, sizeof(f->aname));
- BYTES(ticket, sizeof(f->ticket));
- BYTES(auth, sizeof(f->auth));
- break;
- case Toattach9p1:
- SHORT(fid);
- BYTES(uname, sizeof(f->uname));
- BYTES(aname, sizeof(f->aname));
- BYTES(ticket, NAMELEN);
- break;
- case Tclone9p1:
- SHORT(fid);
- SHORT(newfid);
- break;
- case Twalk9p1:
- SHORT(fid);
- BYTES(name, sizeof(f->name));
- break;
- case Tclwalk9p1:
- SHORT(fid);
- SHORT(newfid);
- BYTES(name, sizeof(f->name));
- break;
- case Tremove9p1:
- SHORT(fid);
- break;
- case Topen9p1:
- SHORT(fid);
- CHAR(mode);
- break;
- case Tcreate9p1:
- SHORT(fid);
- BYTES(name, sizeof(f->name));
- LONG(perm);
- CHAR(mode);
- break;
- case Tread9p1:
- SHORT(fid);
- LONG(offset); p += 4;
- SHORT(count);
- break;
- case Twrite9p1:
- SHORT(fid);
- LONG(offset); p += 4;
- SHORT(count);
- p++;
- f->data = (char*)p; p += f->count;
- break;
- case Tclunk9p1:
- case Tstat9p1:
- SHORT(fid);
- break;
- case Twstat9p1:
- SHORT(fid);
- BYTES(stat, sizeof(f->stat));
- break;
- /*
- */
- case Rnop9p1:
- case Rosession9p1:
- break;
- case Rsession9p1:
- BYTES(chal, sizeof(f->chal));
- BYTES(authid, sizeof(f->authid));
- BYTES(authdom, sizeof(f->authdom));
- break;
- case Rerror9p1:
- BYTES(ename, sizeof(f->ename));
- break;
- case Rflush9p1:
- break;
- case Rclone9p1:
- case Rclunk9p1:
- case Rremove9p1:
- case Rwstat9p1:
- SHORT(fid);
- break;
- case Rwalk9p1:
- case Rclwalk9p1:
- case Ropen9p1:
- case Rcreate9p1:
- SHORT(fid);
- LONG(qid.path);
- LONG(qid.version);
- break;
- case Rattach9p1:
- SHORT(fid);
- LONG(qid.path);
- LONG(qid.version);
- BYTES(rauth, sizeof(f->rauth));
- break;
- case Roattach9p1:
- SHORT(fid);
- LONG(qid.path);
- LONG(qid.version);
- break;
- case Rread9p1:
- SHORT(fid);
- SHORT(count);
- p++;
- f->data = (char*)p; p += f->count;
- break;
- case Rwrite9p1:
- SHORT(fid);
- SHORT(count);
- break;
- case Rstat9p1:
- SHORT(fid);
- BYTES(stat, sizeof(f->stat));
- break;
- }
- if((uchar*)ap+n == p)
- return n;
- return 0;
- }
- int
- convM2D9p1(char *ap, Dentry *f)
- {
- uchar *p;
- char str[28];
- p = (uchar*)ap;
- BYTES(name, sizeof(f->name));
- memmove(str, p, NAMELEN);
- p += NAMELEN;
- f->uid = strtouid(str);
- memmove(str, p, NAMELEN);
- p += NAMELEN;
- f->gid = strtouid(str);
- LONG(qid.path);
- LONG(qid.version);
- {
- LONG(atime);
- f->mode = (f->atime & 0x0fff) | DALLOC;
- if(f->atime & PDIR)
- f->mode |= DDIR;
- if(f->atime & PAPND)
- f->mode |= DAPND;
- if(f->atime & PLOCK)
- f->mode |= DLOCK;
- }
- LONG(atime);
- LONG(mtime);
- LONG(size); p += 4;
- p += 4;
- return p - (uchar*)ap;
- }
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