Пример #1
0
static Renode *parsecat(struct cstate *g)
{
	Renode *cat, *x;
	if (g->lookahead && g->lookahead != '|' && g->lookahead != ')') {
		cat = parserep(g);
		while (g->lookahead && g->lookahead != '|' && g->lookahead != ')') {
			x = cat;
			cat = newnode(g, P_CAT);
			cat->x = x;
			cat->y = parserep(g);
		}
		return cat;
	}
	return NULL;
}
Пример #2
0
static Renode *parsecat(void)
{
	Renode *cat, *x;
	if (g.lookahead && g.lookahead != '|' && g.lookahead != ')') {
		cat = parserep();
		while (g.lookahead && g.lookahead != '|' && g.lookahead != ')') {
			x = cat;
			cat = newnode(P_CAT);
			cat->x = x;
			cat->y = parserep();
		}
		return cat;
	}
	return NULL;
}
Пример #3
0
static void
interp_reply(netdissect_options *ndo,
             const struct sunrpc_msg *rp, uint32_t proc, uint32_t vers, int length)
{
	const uint32_t *dp;
	int v3;
	u_int er;

	v3 = (vers == NFS_VER3);

	if (!v3 && proc < NFS_NPROCS)
		proc = nfsv3_procid[proc];

	ND_PRINT(" %s", tok2str(nfsproc_str, "proc-%u", proc));
	switch (proc) {

	case NFSPROC_GETATTR:
		dp = parserep(ndo, rp, length);
		if (dp != NULL && parseattrstat(ndo, dp, !ndo->ndo_qflag, v3) != 0)
			return;
		break;

	case NFSPROC_SETATTR:
		if (!(dp = parserep(ndo, rp, length)))
			return;
		if (v3) {
			if (parsewccres(ndo, dp, ndo->ndo_vflag))
				return;
		} else {
			if (parseattrstat(ndo, dp, !ndo->ndo_qflag, 0) != 0)
				return;
		}
		break;

	case NFSPROC_LOOKUP:
		if (!(dp = parserep(ndo, rp, length)))
			break;
		if (v3) {
			if (!(dp = parsestatus(ndo, dp, &er)))
				break;
			if (er) {
				if (ndo->ndo_vflag > 1) {
					ND_PRINT(" post dattr:");
					dp = parse_post_op_attr(ndo, dp, ndo->ndo_vflag);
				}
			} else {
				if (!(dp = parsefh(ndo, dp, v3)))
					break;
				if ((dp = parse_post_op_attr(ndo, dp, ndo->ndo_vflag)) &&
				    ndo->ndo_vflag > 1) {
					ND_PRINT(" post dattr:");
					dp = parse_post_op_attr(ndo, dp, ndo->ndo_vflag);
				}
			}
			if (dp)
				return;
		} else {
			if (parsediropres(ndo, dp) != 0)
				return;
		}
		break;

	case NFSPROC_ACCESS:
		if (!(dp = parserep(ndo, rp, length)))
			break;
		if (!(dp = parsestatus(ndo, dp, &er)))
			break;
		if (ndo->ndo_vflag)
			ND_PRINT(" attr:");
		if (!(dp = parse_post_op_attr(ndo, dp, ndo->ndo_vflag)))
			break;
		if (!er) {
			ND_TCHECK_4(dp);
			ND_PRINT(" c %04x", EXTRACT_BE_U_4(dp));
		}
		return;

	case NFSPROC_READLINK:
		dp = parserep(ndo, rp, length);
		if (dp != NULL && parselinkres(ndo, dp, v3) != 0)
			return;
		break;

	case NFSPROC_READ:
		if (!(dp = parserep(ndo, rp, length)))
			break;
		if (v3) {
			if (!(dp = parsestatus(ndo, dp, &er)))
				break;
			if (!(dp = parse_post_op_attr(ndo, dp, ndo->ndo_vflag)))
				break;
			if (er)
				return;
			if (ndo->ndo_vflag) {
				ND_TCHECK_4(dp + 1);
				ND_PRINT(" %u bytes", EXTRACT_BE_U_4(dp));
				if (EXTRACT_BE_U_4(dp + 1))
					ND_PRINT(" EOF");
			}
			return;
		} else {
			if (parseattrstat(ndo, dp, ndo->ndo_vflag, 0) != 0)
				return;
		}
		break;

	case NFSPROC_WRITE:
		if (!(dp = parserep(ndo, rp, length)))
			break;
		if (v3) {
			if (!(dp = parsestatus(ndo, dp, &er)))
				break;
			if (!(dp = parse_wcc_data(ndo, dp, ndo->ndo_vflag)))
				break;
			if (er)
				return;
			if (ndo->ndo_vflag) {
				ND_TCHECK_4(dp);
				ND_PRINT(" %u bytes", EXTRACT_BE_U_4(dp));
				if (ndo->ndo_vflag > 1) {
					ND_TCHECK_4(dp + 1);
					ND_PRINT(" <%s>",
						tok2str(nfsv3_writemodes,
							NULL, EXTRACT_BE_U_4(dp + 1)));
				}
				return;
			}
		} else {
			if (parseattrstat(ndo, dp, ndo->ndo_vflag, v3) != 0)
				return;
		}
		break;

	case NFSPROC_CREATE:
	case NFSPROC_MKDIR:
		if (!(dp = parserep(ndo, rp, length)))
			break;
		if (v3) {
			if (parsecreateopres(ndo, dp, ndo->ndo_vflag) != NULL)
				return;
		} else {
			if (parsediropres(ndo, dp) != 0)
				return;
		}
		break;

	case NFSPROC_SYMLINK:
		if (!(dp = parserep(ndo, rp, length)))
			break;
		if (v3) {
			if (parsecreateopres(ndo, dp, ndo->ndo_vflag) != NULL)
				return;
		} else {
			if (parsestatus(ndo, dp, &er) != NULL)
				return;
		}
		break;

	case NFSPROC_MKNOD:
		if (!(dp = parserep(ndo, rp, length)))
			break;
		if (parsecreateopres(ndo, dp, ndo->ndo_vflag) != NULL)
			return;
		break;

	case NFSPROC_REMOVE:
	case NFSPROC_RMDIR:
		if (!(dp = parserep(ndo, rp, length)))
			break;
		if (v3) {
			if (parsewccres(ndo, dp, ndo->ndo_vflag))
				return;
		} else {
			if (parsestatus(ndo, dp, &er) != NULL)
				return;
		}
		break;

	case NFSPROC_RENAME:
		if (!(dp = parserep(ndo, rp, length)))
			break;
		if (v3) {
			if (!(dp = parsestatus(ndo, dp, &er)))
				break;
			if (ndo->ndo_vflag) {
				ND_PRINT(" from:");
				if (!(dp = parse_wcc_data(ndo, dp, ndo->ndo_vflag)))
					break;
				ND_PRINT(" to:");
				if (!(dp = parse_wcc_data(ndo, dp, ndo->ndo_vflag)))
					break;
			}
			return;
		} else {
			if (parsestatus(ndo, dp, &er) != NULL)
				return;
		}
		break;

	case NFSPROC_LINK:
		if (!(dp = parserep(ndo, rp, length)))
			break;
		if (v3) {
			if (!(dp = parsestatus(ndo, dp, &er)))
				break;
			if (ndo->ndo_vflag) {
				ND_PRINT(" file POST:");
				if (!(dp = parse_post_op_attr(ndo, dp, ndo->ndo_vflag)))
					break;
				ND_PRINT(" dir:");
				if (!(dp = parse_wcc_data(ndo, dp, ndo->ndo_vflag)))
					break;
				return;
			}
		} else {
			if (parsestatus(ndo, dp, &er) != NULL)
				return;
		}
		break;

	case NFSPROC_READDIR:
		if (!(dp = parserep(ndo, rp, length)))
			break;
		if (v3) {
			if (parsev3rddirres(ndo, dp, ndo->ndo_vflag))
				return;
		} else {
			if (parserddires(ndo, dp) != 0)
				return;
		}
		break;

	case NFSPROC_READDIRPLUS:
		if (!(dp = parserep(ndo, rp, length)))
			break;
		if (parsev3rddirres(ndo, dp, ndo->ndo_vflag))
			return;
		break;

	case NFSPROC_FSSTAT:
		dp = parserep(ndo, rp, length);
		if (dp != NULL && parsestatfs(ndo, dp, v3) != 0)
			return;
		break;

	case NFSPROC_FSINFO:
		dp = parserep(ndo, rp, length);
		if (dp != NULL && parsefsinfo(ndo, dp) != 0)
			return;
		break;

	case NFSPROC_PATHCONF:
		dp = parserep(ndo, rp, length);
		if (dp != NULL && parsepathconf(ndo, dp) != 0)
			return;
		break;

	case NFSPROC_COMMIT:
		dp = parserep(ndo, rp, length);
		if (dp != NULL && parsewccres(ndo, dp, ndo->ndo_vflag) != 0)
			return;
		break;

	default:
		return;
	}
trunc:
	if (!nfserr)
		ND_PRINT("%s", tstr);
}
Пример #4
0
static void
interp_reply(const struct sunrpc_msg *rp, u_int32_t proc, u_int32_t vers, int length)
{
	register const u_int32_t *dp;
	register int v3;
	int er;

	v3 = (vers == NFS_VER3);

	if (!v3 && proc < NFS_NPROCS)
		proc = nfsv3_procid[proc];

	switch (proc) {

	case NFSPROC_NOOP:
		printf(" nop");
		return;

	case NFSPROC_NULL:
		printf(" null");
		return;

	case NFSPROC_GETATTR:
		printf(" getattr");
		dp = parserep(rp, length);
		if (dp != NULL && parseattrstat(dp, !qflag, v3) != 0)
			return;
		break;

	case NFSPROC_SETATTR:
		printf(" setattr");
		if (!(dp = parserep(rp, length)))
			return;
		if (v3) {
			if (parsewccres(dp, vflag))
				return;
		} else {
			if (parseattrstat(dp, !qflag, 0) != 0)
				return;
		}
		break;

	case NFSPROC_LOOKUP:
		printf(" lookup");
		if (!(dp = parserep(rp, length)))
			break;
		if (v3) {
			if (!(dp = parsestatus(dp, &er)))
				break;
			if (er) {
				if (vflag > 1) {
					printf(" post dattr:");
					dp = parse_post_op_attr(dp, vflag);
				}
			} else {
				if (!(dp = parsefh(dp, v3)))
					break;
				if ((dp = parse_post_op_attr(dp, vflag)) &&
				    vflag > 1) {
					printf(" post dattr:");
					dp = parse_post_op_attr(dp, vflag);
				}
			}
			if (dp)
				return;
		} else {
			if (parsediropres(dp) != 0)
				return;
		}
		break;

	case NFSPROC_ACCESS:
		printf(" access");
		if (!(dp = parserep(rp, length)))
			break;
		if (!(dp = parsestatus(dp, &er)))
			break;
		if (vflag)
			printf(" attr:");
		if (!(dp = parse_post_op_attr(dp, vflag)))
			break;
		if (!er)
			printf(" c %04x", EXTRACT_32BITS(&dp[0]));
		return;

	case NFSPROC_READLINK:
		printf(" readlink");
		dp = parserep(rp, length);
		if (dp != NULL && parselinkres(dp, v3) != 0)
			return;
		break;

	case NFSPROC_READ:
		printf(" read");
		if (!(dp = parserep(rp, length)))
			break;
		if (v3) {
			if (!(dp = parsestatus(dp, &er)))
				break;
			if (!(dp = parse_post_op_attr(dp, vflag)))
				break;
			if (er)
				return;
			if (vflag) {
				TCHECK(dp[1]);
				printf(" %u bytes", EXTRACT_32BITS(&dp[0]));
				if (EXTRACT_32BITS(&dp[1]))
					printf(" EOF");
			}
			return;
		} else {
			if (parseattrstat(dp, vflag, 0) != 0)
				return;
		}
		break;

	case NFSPROC_WRITE:
		printf(" write");
		if (!(dp = parserep(rp, length)))
			break;
		if (v3) {
			if (!(dp = parsestatus(dp, &er)))
				break;
			if (!(dp = parse_wcc_data(dp, vflag)))
				break;
			if (er)
				return;
			if (vflag) {
				TCHECK(dp[0]);
				printf(" %u bytes", EXTRACT_32BITS(&dp[0]));
				if (vflag > 1) {
					TCHECK(dp[1]);
					printf(" <%s>",
						tok2str(nfsv3_writemodes,
							NULL, EXTRACT_32BITS(&dp[1])));
				}
				return;
			}
		} else {
			if (parseattrstat(dp, vflag, v3) != 0)
				return;
		}
		break;

	case NFSPROC_CREATE:
		printf(" create");
		if (!(dp = parserep(rp, length)))
			break;
		if (v3) {
			if (parsecreateopres(dp, vflag) != 0)
				return;
		} else {
			if (parsediropres(dp) != 0)
				return;
		}
		break;

	case NFSPROC_MKDIR:
		printf(" mkdir");
		if (!(dp = parserep(rp, length)))
			break;
		if (v3) {
			if (parsecreateopres(dp, vflag) != 0)
				return;
		} else {
			if (parsediropres(dp) != 0)
				return;
		}
		break;

	case NFSPROC_SYMLINK:
		printf(" symlink");
		if (!(dp = parserep(rp, length)))
			break;
		if (v3) {
			if (parsecreateopres(dp, vflag) != 0)
				return;
		} else {
			if (parsestatus(dp, &er) != 0)
				return;
		}
		break;

	case NFSPROC_MKNOD:
		printf(" mknod");
		if (!(dp = parserep(rp, length)))
			break;
		if (parsecreateopres(dp, vflag) != 0)
			return;
		break;

	case NFSPROC_REMOVE:
		printf(" remove");
		if (!(dp = parserep(rp, length)))
			break;
		if (v3) {
			if (parsewccres(dp, vflag))
				return;
		} else {
			if (parsestatus(dp, &er) != 0)
				return;
		}
		break;

	case NFSPROC_RMDIR:
		printf(" rmdir");
		if (!(dp = parserep(rp, length)))
			break;
		if (v3) {
			if (parsewccres(dp, vflag))
				return;
		} else {
			if (parsestatus(dp, &er) != 0)
				return;
		}
		break;

	case NFSPROC_RENAME:
		printf(" rename");
		if (!(dp = parserep(rp, length)))
			break;
		if (v3) {
			if (!(dp = parsestatus(dp, &er)))
				break;
			if (vflag) {
				printf(" from:");
				if (!(dp = parse_wcc_data(dp, vflag)))
					break;
				printf(" to:");
				if (!(dp = parse_wcc_data(dp, vflag)))
					break;
			}
			return;
		} else {
			if (parsestatus(dp, &er) != 0)
				return;
		}
		break;

	case NFSPROC_LINK:
		printf(" link");
		if (!(dp = parserep(rp, length)))
			break;
		if (v3) {
			if (!(dp = parsestatus(dp, &er)))
				break;
			if (vflag) {
				printf(" file POST:");
				if (!(dp = parse_post_op_attr(dp, vflag)))
					break;
				printf(" dir:");
				if (!(dp = parse_wcc_data(dp, vflag)))
					break;
				return;
			}
		} else {
			if (parsestatus(dp, &er) != 0)
				return;
		}
		break;

	case NFSPROC_READDIR:
		printf(" readdir");
		if (!(dp = parserep(rp, length)))
			break;
		if (v3) {
			if (parsev3rddirres(dp, vflag))
				return;
		} else {
			if (parserddires(dp) != 0)
				return;
		}
		break;

	case NFSPROC_READDIRPLUS:
		printf(" readdirplus");
		if (!(dp = parserep(rp, length)))
			break;
		if (parsev3rddirres(dp, vflag))
			return;
		break;

	case NFSPROC_FSSTAT:
		printf(" fsstat");
		dp = parserep(rp, length);
		if (dp != NULL && parsestatfs(dp, v3) != 0)
			return;
		break;

	case NFSPROC_FSINFO:
		printf(" fsinfo");
		dp = parserep(rp, length);
		if (dp != NULL && parsefsinfo(dp) != 0)
			return;
		break;

	case NFSPROC_PATHCONF:
		printf(" pathconf");
		dp = parserep(rp, length);
		if (dp != NULL && parsepathconf(dp) != 0)
			return;
		break;

	case NFSPROC_COMMIT:
		printf(" commit");
		dp = parserep(rp, length);
		if (dp != NULL && parsewccres(dp, vflag) != 0)
			return;
		break;

	default:
		printf(" proc-%u", proc);
		return;
	}
trunc:
	if (!nfserr)
		printf("%s", tstr);
}