Commit graph

270 commits

Author SHA1 Message Date
Ori Bernstein 520a39efcd sysproc: raise limit on #! lines, and allow quoted args
Our #! line length is very short, and the naïve quoting
makes it difficult to pass more complicated arguments to
the programs being run. This is fine for simple interpreters,
but it's often useful to pass arguments to more complicated
interpreters like auth/box or awk.

This change raises the limit, but also switches to tokenizing
via tokenize(2), rather than hand rolled whitespace splitting.

The limits chosen are arbitrary, but they leave approximately
3 KiB of stack space on 386, and 13k on amd64. This is a lot
of stack used, but it should leave enough for fairly deep
devtab chan stacks.
2022-07-25 04:48:44 +00:00
Jacob Moody 4ee54b1416 fork(2): fix commas in RFNOMNT references 2022-05-15 16:14:36 +00:00
Jacob Moody 2c67fb9794 fork(2): fix parens in RFNOMNT references (thanks Amavect) 2022-05-15 03:01:49 +00:00
Jacob Moody e614e819e3 fork(2): Document RFNOMNT edge cases. 2022-05-12 17:50:08 +00:00
rodri 70e2b4f7ec 9pqueue(2): fix typo 2022-04-19 20:21:37 +00:00
cinap_lenrek 065d601916 nusb: Fix handling of interface altsetting.
The altsetting was handled only for a single endpoint
(per interface number), but has to be handled for each
endpoint (per interface *AND* altsetting number).

A multi function device (like a disk) can have
multiple interfaces, all with the same interface number
but varying altsetting numbers and each of these
interfaces would list distict endpoint configurations.

Multiple interfaces can even share some endpoints (they
use the same endpoint addresses), but
we still have to duplicate them for each
interface+altsetting number (as they'r part of
actually distict interfaces with distict endpoint
configurations).

It is also important to *NOT* make endpoints bi-directional
(dir == Eboth) when only one direction is used in a
interface/altsetting and the other direction in another.
This was the case for nusb/disk with some seagate drive
where endpoints where shared between the UAS and
usb storage class interface (but with distict altsettings).

The duplicate endpoints (as in using the same endpoint address)
are chained together by a next pointer and the head
is stored in Usbdev.ep[addr], where addr is the endpoint
address. These Ep structures will have distinct endpoint
numbers Ep.id (when they have conflicting types), but all
will share the endpoint address (lower 4 bits of the
endpoint number).

The consequence is that all of the endpoints configuration
(attributes, interval) is now stored in the Ep struct and
no more Altc struct is present.

A pointer to the Ep struct has to be passed to openep()
for it to configure the endpoint.

For the Iface struct, we will now create multiple of them:
one for each interface *AND* altsetting nunber,
chained together on a next pointer and the head being
stored in conf->iface[ifaceid].

--
cinap
2022-02-21 19:50:16 +00:00
cinap_lenrek 44a5f4d2ef remove pushssl(2) 2021-12-31 15:59:13 +00:00
Stuart Morrow 3f49507786 mainly just spelling and typos 2021-11-01 20:49:43 +00:00
cinap_lenrek 2899b719ae libndb: move mkptrname() into libndb to avoid duplication 2021-11-03 19:38:36 +00:00
cinap_lenrek 20cff04fd2 ndb/dns: implement caa record type in ndb
this allows the caa records to be specified
in ndb as:

caa=<value> tag=<tag> flags=<flags>

where tag defaults to "issue" and flags to 0
when omited.
2021-10-24 22:15:26 +00:00
cinap_lenrek bb2357de0c fork(2): document new error behaviour when out of resources 2021-10-16 13:14:53 +00:00
qwx 3e98132fc6 addpt(2): fix inconsistency in description 2021-10-10 17:13:57 +00:00
cinap_lenrek 084c2e6a65 fix manpage references for dup(2), kproc(9) and panic(9). 2021-09-08 18:22:35 +00:00
cinap_lenrek 33ac896d47 ndb(2): document txt and txtrr attributes. 2021-09-08 18:20:59 +00:00
qwx ad26f82e44 man page fixes (thanks stuart morrow) 2021-08-24 21:45:37 +00:00
Sigrid Solveig Haflínudóttir 185fe31de4 9p(2): fix a typo (thanks humm) 2021-08-05 13:01:35 +00:00
rodri 28f76455d3 dial(2): dial returns an open data file, not a ctl one. also fixed little typo. 2021-07-25 18:27:59 +00:00
cinap_lenrek 1ec44ec77c libc: use usize for sbrk() increment 2021-07-25 16:03:14 +00:00
cinap_lenrek e4b5f170cf libc: change usize to 64-bit for amd64 and arm64, make memory(2) functions use usize 2021-07-25 15:54:22 +00:00
cinap_lenrek c38fcb5dc3 arm64: use generic timer virtual counter for cycles()
We used to use performance cycle counter for cycles(),
but it is kind of useless in userspace as each core
has its own counter and hence not comparable between
cores. Also, the cycle counter stops counting when
the cores are idle.

Most callers expect cycles() to return a high resolution
timestamp instead, so do the best we can do here
and enable the userspace generic timer virtual counter.
2021-07-23 15:10:01 +00:00
cinap_lenrek 669b3abd70 brk(2): .... we define lowest addres not used by the program above, so use that instead 2021-07-20 21:49:30 +00:00
cinap_lenrek 7bd6679c82 brk(2): sbrk(0) returns end address, not the base
sbrk(0) returns the current end address of the BSS segment,
not the base. This might have been confused with the behaviour
of segbrk(), which when given a zero address returns the base.
2021-07-20 21:44:34 +00:00
kvik 431dbabcc1 graphics(2): fix typo 2021-07-14 20:38:12 +00:00
Jacob Moody 5a23b752eb strcat(2): 0 → nil in manpage in refrence to pointers 2021-07-12 21:42:39 +00:00
cinap_lenrek 88060e7501 libsec: add X509reqtoRSApub() function and return subject alt names in X509to*pub() name buffer
We need a way to parse a rsa certificate request and return the public
key and subject names. The new function X509reqtoRSApub() works the
same way as X509toRSApub() but on a certificate request.

We also need to support certificates that are valid for multiple domain
names (as tlshand does not support certificate selection). For this
reason, a comma separated list is returned as the certificate subject,
making it symmetric to X509rsareq() handling.

A little helper is provided with this change (auth/x5092pub) that takes
a certificate (or a certificate request when -r flag is provided) and
outputs the RSA public key in plan 9 format appended with the subject
attribute.
2021-07-04 22:00:24 +00:00
Ori Bernstein e934530ee4 libc: add encode(2) variants for custom alphabets
There are a number of alphabets in common use for base32
and base64 encoding, such as url-safe encodings.

This adds support for passing a function to encode into
arbitary alphabets.
2021-07-03 20:03:17 +00:00
Sigrid Solveig Haflínudóttir e390486e92 tmdate(2): "ttt" is a valid format too, mention it 2021-06-23 08:07:16 +00:00
Jacob Moody 370ef39bf9 lib9p: add auth* functions to man page 2021-06-12 23:12:41 +00:00
Ori Bernstein 2321062d2f 9pfid(2): document Srv* in Req (thanks kjn)
This struct member is available for any user of
the library, and is not part of our internal API.
It should be documented.
2021-05-17 09:17:22 -07:00
cinap_lenrek 013b2cad19 memory(2): mention tsmemcmp (thanks kemal) 2021-05-15 12:40:11 +02:00
cinap_lenrek ee289c2415 lib9p: remove Srv.srvfd, make postsrv() and threadpostsrv() return the mountable file descriptor, update documentation
Now that we have these new functions,
we can also make them return an error
instead of calling sysfatal() like
postmountsrv().

Remove the confusing Srv.srvfd, as it
is only temporarily used and return
it from postsrv() instead.
2021-05-01 19:58:58 +02:00
cinap_lenrek f6509078ed lib9p: expose Srv.forker handler and srvforker(), threadsrvforker() and threadsrv() functions
To use srvrease()/srvaquire() we need to have a way to spawn
new processes to handle the service loop. This functionality
was provided by the internal _forker() function which was
eigther rfork or libthread based implementation depending on
if postmountsrv() or threadpostmountsrv() where called.

For servers who want to use srv() directly, _forker would not
be initialized so srvrelease() could not be used.

To untangle this, we get rid of the global _forker handler
and put the handler in the Srv structure. Which will get
initialized (when nil) to eigther srvforker() or threadsrvforker()
depending on if the thread or non-thread entry points where used.

For symmetry, we provde new threadsrv() and threadpostsrv()
functions which handle the default initialization of Srv.forker.

This also allows a user to provide his own forker function,
maybe to conserve stack space.

To avoid dead code, we put each of these function in their
own object file. Note, this also allows a user to define its
own srvforker() symbol.
2021-05-01 16:37:00 +02:00
qwx c3593c1a7a opl3(1), exec(2): fix manpage typos (thanks umbraticus) 2021-04-27 16:08:06 +02:00
Romano aebdf1010b minor man page typos 2021-04-08 21:42:31 +02:00
kvik bc1cc79225 libstdio: sync bits of vfprintf from APE
* Add the %ll length modifier,
* Convert nil to "<nil>" under %s (not in APE),
* Cast void* to uintptr under %p,
* Use "0x" hex prefix under %p,
* Fix manual page mentions of %P to %p,
* Fix empty result for fp conversions,
* Fix zero padding of left-aligned fp conversions,
* Remove deprecated #pragma ref uses.

Most of these were introduced in APE prior to 9front.

I've omitted the %z conversion specifier since Plan 9 code
rarely uses the usize type. This may need to be added later
for the benefit of native ports of alien code.
2021-02-19 23:04:09 +01:00
kvik 1ce6f0f2ab nan(2): document isInf(x, 0) matching +∞ and -∞ 2021-02-18 21:40:30 +01:00
Ori Bernstein e2e973a34b tmdate(2): correct example in manpage
add missing tmdate() call around %τ format.
2021-01-16 14:24:32 -08:00
Ori Bernstein c207b78d07 libdraw: add bezierpts
This patch exposes the bezierpts function,
providing a way to get the points on a path,
similar how bezsplinepts gives them for b
splines.
2021-01-09 12:20:49 -08:00
Ori Bernstein dda99bbfe5 9pfid(2): document struct Qid (thanks sirjofri)
The Qid struct is pervasive when writing 9p servers,
but is not described in the manpages. This adds a
definition to the 9pfid manpage.
2021-01-06 10:07:10 -08:00
cinap_lenrek dced7255ec libc: re-implement getuser() by stating /proc/$pid/status
The idea is to avoid the magic files that contain
per process information in devcons when possible.
It will make it easier to deprecate them in the future.
2020-12-23 02:31:28 +01:00
cinap_lenrek fc5070c600 libauth: add procsetuser() function to change user id of the calling process
Provide a central function to change the user id
of the calling process.

This is mostly used by programs to become the none
user, followed by a call to newns().
2020-12-19 17:46:55 +01:00
cinap_lenrek 672cf179a1 libc: implement getppid() reading /proc/$pid/ppid instead of /dev/ppid
The devcons driver is really the wrong place to
serve per process information.
2020-12-19 15:15:38 +01:00
cinap_lenrek 0b33b3b8ad kernel: implement per file descriptor OCEXEC flag, reject ORCLOSE when opening /fd, /srv and /shr
The OCEXEC flag used to be maintained per channel,
making it shared between all the file desciptors.

This has a unexpected side effects with regard to
channel passing drivers such as devdup (/fd),
devsrv (/srv) and devshr (/shr).

For example, opening a /srv file with OCEXEC
makes it impossible to be remounted by exportfs
as it internally does a exec() to mount and
re-export it. There is no way to reset the flag.

This change makes the OCEXEC flag per file descriptor,
so a open with the OCEXEC flag only affects the fd
group of the calling process, and not the channel
itself.

On rfork(RFFDG), the per file descriptor flags get
copied.

On dup(), the per file descriptor flags are reset.

The second modification is that /fd, /srv and /shr
should reject the ORCLOSE flag, as the files that
are returned have already been opend.
2020-12-13 16:04:09 +01:00
Ori Bernstein 07e8c324a8 tmdate(2): remove lies
Initially the code tried to guess the date format. This
turned out to be a bit too magical, so the feature was
removed, but the manpage still documented the nonfeature.
2020-11-30 07:41:49 -08:00
Sigrid 808acd51f4 tmdate(2): failed to (p)arse 2020-11-18 20:14:26 +01:00
Sigrid 23620bb1db ctime(2): add tmdate(2) to "see also" 2020-11-18 20:11:55 +01:00
Ori Bernstein dbd54342fd libbio: add aux pointer to bio
This allows us to attach additional context
to the biobuf so can read from some sort of
data structure without a global variable.
2020-11-01 11:42:54 -08:00
Ori Bernstein 9bb519ac50 mp(2): correct documentation of error handling (thanks LordCreepity)
The documentation for mp(2) claimed we'd return nil on error, when
we actually sysfatal. This corrects the documentation to match our
actual behavior.
2020-10-24 17:24:59 -07:00
Ori Bernstein 9afa5550f7 tmdate(1): fix missing arg, fix formatting (thanks joe9) 2020-09-25 21:22:47 -07:00
Ori Bernstein eb6b1e672c merge 2020-09-25 16:51:08 -07:00