16624 Want support for FD_CLOFORK and friends

16638 Add some additional details to socket(3HEAD)
Reviewed by: C Fraire <[email protected]>
Reviewed by: Hans Rosenfeld <[email protected]>
Approved by: Gordon Ross <[email protected]>

usr/src/cmd/ptools/pfiles/pfiles.c

@@ -26,6 +26,7 @@
 /*
  * Copyright (c) 2017 Joyent, Inc.  All Rights reserved.
  * Copyright 2020 OmniOS Community Edition (OmniOSce) Association.
+ * Copyright 2024 Oxide Computer Company
  */
 
 #include <stdio.h>
@@ -318,6 +319,26 @@ show_files(struct ps_prochandle *Pr)
 	(void) Pfdinfo_iter(Pr, show_file, Pr);
 }
 
+static void
+show_fdflags(int fdflags)
+{
+	if (fdflags <= 0)
+		return;
+
+	/*
+	 * show_fileflags() already has printed content here. We translate these
+	 * back to the O_ versions for consistency with the flags that were
+	 * already printed.
+	 */
+	if ((fdflags & FD_CLOEXEC) != 0) {
+		(void) printf("|O_CLOEXEC");
+	}
+
+	if ((fdflags & FD_CLOFORK) != 0) {
+		(void) printf("|O_CLOFORK");
+	}
+}
+
 /* examine open file with fcntl() */
 static void
 dofcntl(struct ps_prochandle *Pr, const prfdinfo_t *info, int mandatory,
@@ -333,8 +354,8 @@ dofcntl(struct ps_prochandle *Pr, const prfdinfo_t *info, int mandatory,
 		(void) printf("      ");
 		if (fileflags != -1)
 			show_fileflags(fileflags);
-		if (fdflags != -1 && (fdflags & FD_CLOEXEC))
-			(void) printf(" FD_CLOEXEC");
+		if (fdflags != -1)
+			show_fdflags(fdflags);
 		if (isdoor && (Pstate(Pr) != PS_DEAD))
 			show_door(Pr, info);
 		(void) fputc('\n', stdout);

usr/src/cmd/sgs/elfdump/common/corenote.c

@@ -1690,7 +1690,7 @@ dump_prfdinfo(note_state_t *state, const char *title)
 {
 	const sl_prfdinfo_layout_t *layout = state->ns_arch->prfdinfo;
 	char buf[1024];
-	uint32_t fileflags, mode;
+	uint32_t fileflags, mode, fdflags;
 
 	indent_enter(state, title, &layout->pr_fd);
 
@@ -1718,7 +1718,9 @@ dump_prfdinfo(note_state_t *state, const char *title)
 	print_str(state, MSG_ORIG(MSG_CNOTE_T_PR_FILEFLAGS),
 	    conv_cnote_fileflags(fileflags, 0, buf, sizeof (buf)));
 
-	PRINT_DEC(MSG_ORIG(MSG_CNOTE_T_PR_FDFLAGS), pr_fdflags);
+	fdflags = extract_as_word(state, &layout->pr_fdflags);
+	print_str(state, MSG_ORIG(MSG_CNOTE_T_PR_FDFLAGS),
+	    conv_cnote_fdflags(fdflags, 0, buf, sizeof (buf)));
 
 	PRINT_STRBUF(MSG_ORIG(MSG_CNOTE_T_PR_PATH), pr_path);
 

usr/src/cmd/sgs/include/conv.h

@@ -27,7 +27,7 @@
  * Copyright 2012 DEY Storage Systems, Inc.  All rights reserved.
  * Copyright (c) 2018, Joyent, Inc.
  * Copyright 2016 RackTop Systems.
- * Copyright 2022 Oxide Computer Company
+ * Copyright 2024 Oxide Computer Company
  */
 
 #ifndef	_CONV_H
@@ -869,6 +869,8 @@ extern	const char	*conv_cnote_syscall(Word, Conv_fmt_flags_t,
 			    Conv_inv_buf_t *);
 extern	const char	*conv_cnote_sysset(uint32_t *, int,
 			    Conv_fmt_flags_t, Conv_cnote_sysset_buf_t *);
+extern	const char	*conv_cnote_fdflags(uint32_t, Conv_fmt_flags_t,
+			    char *, size_t);
 extern	const char	*conv_cnote_fileflags(uint32_t, Conv_fmt_flags_t,
 			    char *, size_t);
 extern	const char	*conv_cnote_filemode(uint32_t, Conv_fmt_flags_t,

usr/src/cmd/sgs/libconv/common/corenote.c

@@ -2605,6 +2605,29 @@ conv_cnote_filemode(uint32_t mode, Conv_fmt_flags_t fmt_flags,
 	return (buf);
 }
 
+const char *
+conv_cnote_fdflags(uint32_t flags, Conv_fmt_flags_t fmt_flags,
+    char *buf, size_t bufsize)
+{
+	CONV_EXPN_FIELD_ARG arg = { 0 };
+
+	static const Val_desc fdflags[] = {
+		{ 0x01,	MSG_FD_CLOEXEC },
+		{ 0x02,	MSG_FD_CLOFORK },
+		{ 0,	0 }
+	};
+
+	if (flags == 0)
+		return (MSG_ORIG(MSG_GBL_ZERO));
+
+	arg.buf = buf;
+	arg.bufsize = bufsize;
+	arg.oflags = flags;
+	arg.rflags = flags;
+
+	(void) conv_expn_field(&arg, fdflags, fmt_flags);
+	return (buf);
+}
 
 #define	PROCSECFLGSZ	CONV_EXPN_FIELD_DEF_PREFIX_SIZE +		\
 	MSG_ASLR_SIZE		+ CONV_EXPN_FIELD_DEF_SEP_SIZE +	\

usr/src/cmd/sgs/libconv/common/corenote.msg

@@ -1115,6 +1115,9 @@
 @ MSG_PR_O_NOFOLLOW			"O_NOFOLLOW"
 @ MSG_PR_O_NOLINKS			"O_NOLINKS"
 
+@ MSG_FD_CLOEXEC			"FD_CLOEXEC"
+@ MSG_FD_CLOFORK			"FD_CLOFORK"
+
 @ MSG_S_IFIFO				"S_IFIFO"
 @ MSG_S_IFCHR				"S_IFCHR"
 @ MSG_S_IFDIR				"S_IFDIR"

usr/src/cmd/sgs/rtld/common/external.c

@@ -184,6 +184,7 @@
 #include <libintl.h>
 #include <debug.h>
 #include <libc_int.h>
+#include <fcntl.h>
 #include "_elf.h"
 #include "_rtld.h"
 
@@ -622,13 +623,21 @@ int
 fcntl(int fildes, int cmd, ...)
 {
 	extern int __fcntl(int, int, ...);
-	intptr_t arg;
+	intptr_t arg, arg1 = 0;
 	va_list ap;
 
 	va_start(ap, cmd);
-	arg = va_arg(ap, intptr_t);
+	switch (cmd) {
+	case F_DUP3FD:
+		arg = va_arg(ap, int);
+		arg1 = va_arg(ap, int);
+		break;
+	default:
+		arg = va_arg(ap, intptr_t);
+		break;
+	}
 	va_end(ap);
-	return (__fcntl(fildes, cmd, arg));
+	return (__fcntl(fildes, cmd, arg, arg1));
 }
 
 int

usr/src/cmd/truss/codes.c

@@ -26,6 +26,7 @@
  * Copyright 2020 Joyent, Inc.
  * Copyright (c) 2014, OmniTI Computer Consulting, Inc. All rights reserved.
  * Copyright 2022 Garrett D'Amore <[email protected]>
+ * Copyright 2024 Oxide Computer Company
  */
 
 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
@@ -111,63 +112,58 @@
 #include "proto.h"
 
 #define	FCNTLMIN	F_DUPFD
-#define	FCNTLMAX	F_FLOCKW
+#define	FCNTLMAX	F_DUP3FD
 const char *const FCNTLname[] = {
-	"F_DUPFD",
-	"F_GETFD",
-	"F_SETFD",
-	"F_GETFL",
-	"F_SETFL",
-	"F_O_GETLK",
-	"F_SETLK",
-	"F_SETLKW",
-	"F_CHKFL",
-	"F_DUP2FD",
-	"F_ALLOCSP",
-	"F_FREESP",
-	NULL,		/* 12 */
-	NULL,		/* 13 */
-	"F_GETLK",
-	NULL,		/* 15 */
-	NULL,		/* 16 */
-	NULL,		/* 17 */
-	NULL,		/* 18 */
-	NULL,		/* 19 */
-	NULL,		/* 20 */
-	NULL,		/* 21 */
-	NULL,		/* 22 */
-	"F_GETOWN",
-	"F_SETOWN",
-	"F_REVOKE",
-	"F_HASREMOTELOCKS",
-	"F_FREESP64",
-	NULL,		/* 28 */
-	NULL,		/* 29 */
-	NULL,		/* 30 */
-	NULL,		/* 31 */
-	NULL,		/* 32 */
-	"F_GETLK64",
-	"F_SETLK64",
-	"F_SETLKW64",
-	"F_DUP2FD_CLOEXEC",
-	"F_DUPFD_CLOEXEC",
-	NULL,		/* 38 */
-	NULL,		/* 39 */
-	"F_SHARE",
-	"F_UNSHARE",
-	"F_SETLK_NBMAND",
-	"F_SHARE_NBMAND",
-	"F_SETLK64_NBMAND",
-	NULL,		/* 45 */
-	"F_BADFD",
-	"F_OFD_GETLK",
-	"F_OFD_SETLK",
-	"F_OFD_SETLKW",
-	NULL,		/* 50 */
-	NULL,		/* 51 */
-	NULL,		/* 52 */
-	"F_FLOCK",
-	"F_FLOCKW"
+	[0] = "F_DUPFD",
+	[1] = "F_GETFD",
+	[2] = "F_SETFD",
+	[3] = "F_GETFL",
+	[4] = "F_SETFL",
+	[5] = "F_O_GETLK",
+	[6] = "F_SETLK",
+	[7] = "F_SETLKW",
+	[8] = "F_CHKFL",
+	[9] = "F_DUP2FD",
+	[10] = "F_ALLOCSP",
+	[11] = "F_FREESP",
+	[13] = "F_ISSTREAM",
+	[14] = "F_GETLK",
+	[15] = "F_PRIV",
+	[16] = "F_NPRIV",
+	[17] = "F_QUOTACTL",
+	[18] = "F_BLOCKS",
+	[19] = "F_BLKSIZE",
+	[23] = "F_GETOWN",
+	[24] = "F_SETOWN",
+	[25] = "F_REVOKE",
+	[26] = "F_HASREMOTELOCKS",
+	[27] = "F_FREESP64",
+	[28] = "F_ALLOCSP64",
+	[33] = "F_GETLK64",
+	[34] = "F_SETLK64",
+	[35] = "F_SETLKW64",
+	[36] = "F_DUP2FD_CLOEXEC",
+	[37] = "F_DUPFD_CLOEXEC",
+	[40] = "F_SHARE",
+	[41] = "F_UNSHARE",
+	[42] = "F_SETLK_NBMAND",
+	[43] = "F_SHARE_NBMAND",
+	[44] = "F_SETLK64_NBMAND",
+	[45] = "F_GETXFL",
+	[46] = "F_BADFD",
+	[47] = "F_OFD_GETLK",
+	[48] = "F_OFD_SETLK",
+	[49] = "F_OFD_SETLKW",
+	[50] = "F_OFD_GETLK64",
+	[51] = "F_OFD_SETLK64",
+	[52] = "F_OFD_SETLKW64",
+	[53] = "F_FLOCK",
+	[54] = "F_FLOCKW",
+	[55] = "F_FLOCK64",
+	[56] = "F_FLOCKW64",
+	[57] = "F_DUP2FD_CLOFORK",
+	[58] = "F_DUPFD_CLOFORK",
+	[59] = "F_DUP3FD"
 };
 
 #define	SYSFSMIN	GETFSIND
@@ -2203,7 +2199,7 @@ pathconfname(int code)
 #define	ALL_O_FLAGS \
 	(O_NDELAY|O_APPEND|O_SYNC|O_DSYNC|O_NONBLOCK|O_CREAT|O_TRUNC\
 	|O_EXCL|O_NOCTTY|O_LARGEFILE|O_RSYNC|O_XATTR|O_NOFOLLOW|O_NOLINKS\
-	|O_CLOEXEC|O_DIRECTORY|O_DIRECT|FXATTRDIROPEN)
+	|O_CLOEXEC|O_DIRECTORY|O_DIRECT|O_CLOFORK|FXATTRDIROPEN)
 
 const char *
 openarg(private_t *pri, int arg)
@@ -2267,6 +2263,8 @@ openarg(private_t *pri, int arg)
 		(void) strlcat(str, "|O_DIRECTORY", sizeof (pri->code_buf));
 	if (arg & O_DIRECT)
 		(void) strlcat(str, "|O_DIRECT", sizeof (pri->code_buf));
+	if (arg & O_CLOFORK)
+		(void) strlcat(str, "|O_CLOFORK", sizeof (pri->code_buf));
 	if (arg & FXATTRDIROPEN)
 		(void) strlcat(str, "|FXATTRDIROPEN", sizeof (pri->code_buf));
 

usr/src/cmd/truss/expound.c

@@ -1813,6 +1813,15 @@ show_ffg(private_t *pri)
 	(void) puts(pri->sys_string);
 }
 
+void
+show_ffd(private_t *pri)
+{
+	(void) putchar('\t');
+	(void) putchar('\t');
+	prt_ffd(pri, 0, pri->Rval1);
+	(void) puts(pri->sys_string);
+}
+
 /* print values in fcntl() pointed-to structure */
 void
 show_fcntl(private_t *pri)
@@ -1824,6 +1833,11 @@ show_fcntl(private_t *pri)
 		return;
 	}
 
+	if (pri->sys_nargs >= 2 && pri->sys_args[1] == F_GETFD) {
+		show_ffd(pri);
+		return;
+	}
+
 	if (pri->sys_nargs < 3 || (offset = pri->sys_args[2]) == 0)
 		return;