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Decode arguments passed to extended attribute related system calls. 

The cmd argument passed to extattrctl() is not decoded as a string constant
but is just printed in hex.  The value is filesystem-specific but in
practice is only used with UFS1 filesystems.
This commit is contained in:
John Baldwin 2017-06-08 04:31:15 +00:00
parent e0a6a23c6d
commit 26606dcaa7
2 changed files with 41 additions and 0 deletions
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1
usr.bin/truss/syscall.h
View File

@ -49,6 +49,7 @@ enum Argtype { None = 1, Hex, Octal, Int, UInt, LongHex, Name, Ptr, Stat, Ioctl,
CapFcntlRights, Fadvice, FileFlags, Flockop, Getfsstatmode, Kldsymcmd,
Kldunloadflags, Sizet, Madvice, Socklent, Sockprotocol, Sockoptlevel,
Sockoptname, Msgflags, CapRights, PUInt, PQuadHex, Acltype,
Extattrnamespace,
CloudABIAdvice, CloudABIClockID, ClouduABIFDSFlags,
CloudABIFDStat, CloudABIFileStat, CloudABIFileType,

40
usr.bin/truss/syscalls.c
View File

@ -160,6 +160,42 @@ static struct syscall decoded_syscalls[] = {
{ ExecEnv | IN, 2 } } },
{ .name = "exit", .ret_type = 0, .nargs = 1,
.args = { { Hex, 0 } } },
{ .name = "extattr_delete_fd", .ret_type = 1, .nargs = 3,
.args = { { Int, 0 }, { Extattrnamespace, 1 }, { Name, 2 } } },
{ .name = "extattr_delete_file", .ret_type = 1, .nargs = 3,
.args = { { Name, 0 }, { Extattrnamespace, 1 }, { Name, 2 } } },
{ .name = "extattr_delete_link", .ret_type = 1, .nargs = 3,
.args = { { Name, 0 }, { Extattrnamespace, 1 }, { Name, 2 } } },
{ .name = "extattr_get_fd", .ret_type = 1, .nargs = 5,
.args = { { Int, 0 }, { Extattrnamespace, 1 }, { Name, 2 },
{ BinString | OUT, 3 }, { Sizet, 4 } } },
{ .name = "extattr_get_file", .ret_type = 1, .nargs = 5,
.args = { { Name, 0 }, { Extattrnamespace, 1 }, { Name, 2 },
{ BinString | OUT, 3 }, { Sizet, 4 } } },
{ .name = "extattr_get_link", .ret_type = 1, .nargs = 5,
.args = { { Name, 0 }, { Extattrnamespace, 1 }, { Name, 2 },
{ BinString | OUT, 3 }, { Sizet, 4 } } },
{ .name = "extattr_list_fd", .ret_type = 1, .nargs = 4,
.args = { { Int, 0 }, { Extattrnamespace, 1 }, { BinString | OUT, 2 },
{ Sizet, 3 } } },
{ .name = "extattr_list_file", .ret_type = 1, .nargs = 4,
.args = { { Name, 0 }, { Extattrnamespace, 1 }, { BinString | OUT, 2 },
{ Sizet, 3 } } },
{ .name = "extattr_list_link", .ret_type = 1, .nargs = 4,
.args = { { Name, 0 }, { Extattrnamespace, 1 }, { BinString | OUT, 2 },
{ Sizet, 3 } } },
{ .name = "extattr_set_fd", .ret_type = 1, .nargs = 5,
.args = { { Int, 0 }, { Extattrnamespace, 1 }, { Name, 2 },
{ BinString | IN, 3 }, { Sizet, 4 } } },
{ .name = "extattr_set_file", .ret_type = 1, .nargs = 5,
.args = { { Name, 0 }, { Extattrnamespace, 1 }, { Name, 2 },
{ BinString | IN, 3 }, { Sizet, 4 } } },
{ .name = "extattr_set_link", .ret_type = 1, .nargs = 5,
.args = { { Name, 0 }, { Extattrnamespace, 1 }, { Name, 2 },
{ BinString | IN, 3 }, { Sizet, 4 } } },
{ .name = "extattrctl", .ret_type = 1, .nargs = 5,
.args = { { Name, 0 }, { Hex, 1 }, { Name, 2 },
{ Extattrnamespace, 3 }, { Name, 4 } } },
{ .name = "faccessat", .ret_type = 1, .nargs = 4,
.args = { { Atfd, 0 }, { Name | IN, 1 }, { Accessmode, 2 },
{ Atflags, 3 } } },
@ -2058,6 +2094,10 @@ print_arg(struct syscall_args *sc, unsigned long *args, long *retval,
case Acltype:
print_integer_arg(sysdecode_acltype, fp, args[sc->offset]);
break;
case Extattrnamespace:
print_integer_arg(sysdecode_extattrnamespace, fp,
args[sc->offset]);
break;
case CloudABIAdvice:
fputs(xlookup(cloudabi_advice, args[sc->offset]), fp);