| Commit message (Collapse) | Author | Age | Files | Lines |
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These constitute the bulk of the remaining global mutable state in
libcrypto. This commit moves most of them into data.rel.ro, leaving
out ERR_str_{functs,libraries,reasons} (which require a slightly
different approach) and SYS_str_reasons which is populated on startup.
The main observation is that if ERR_load_strings() is called with a 0 lib
argument, the ERR_STRING_DATA argument is not actually modified. We could
use this fact to cast away const on the caller side and be done with it.
We can make this cleaner by adding a helper ERR_load_const_strings() which
explicitly avoids the assignment to str->error overriding the error code
already set in the table.
In order for this to work, we need to sprinkle some const in err/err.c.
CMS called ERR_load_strings() with non-0 lib argument, but this didn't
actually modify the error data since it ored in the value already stored
in the table.
Annoyingly, we need to cast const away once, namely in the call to
lh_insert() in int_err_set_item(). Fixing this would require changing
the public API and is going to be tricky since it requires that the
LHASH_DOALL_FN_* types adjust.
ok jsing
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ok jsing
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ok kettenis@ deraadt@ tb@
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ok tb@
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The content is effectively a u32 length prefixed field, so use
CBB_add_u32_length_prefixed(). Use BN_bn2binpad() rather than manually
padding if we need to extend and use sensible variable names so that the
code becomes more readable.
Note that since CBB can fail we now need to be able to indicate failure.
This means that BN_bn2mpi() can now return -1 when it would not have
previously (correct callers will check that BN_bn2mpi() returns a positive
length).
ok tb@
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This is needed for an upcoming change in libcrypto.
ok tb@
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This aligns it with do_ext_i2d()
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now that ext is free, we can use it like everywhere else
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In this code 'ext' is usually used for an X509_EXTENSION object.
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There's no reason for them not to be const. This is a piece of a larger
diff that I carry in several of my trees to move more things to rodata
or relro. The full diff requires a change to a public header and it's
very annoying to have to 'make includes' and recompile the entire lib
all the time when hopping from tree to tree.
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requested by jsing on review
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There are no nid variables in this file, so no need to disambiguate.
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requested by jsing on review
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ok jsing
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If ASN1_OCTET_STRING_new() failed, ext_der would be leaked, fix this.
If i2d(foo, NULL) succeeded, the same is not guaranteed for the second
with appropriately sized buffer since i2d() may make further allocations
internally. So use the proper error check. Also transfer the ownership of
ext_der to the octet string to avoid a now possible double free.
ok jsing
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ok jsing
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requested by jsing on review
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This API is wrapped by nine *_get{,1}_ext_d2i() functions and they all
have the same defect: if an idx variable is passed in, multiple extensions
are handled incorrectly.
Clean up the mess that was the current implementation by replacing the
reimplementation of X509v3_get_ext_by_NID() with extra twists by actual
calls to the real thing. This way the madness is implemented explicitly
and can be explained in comments. The code still gets shorter.
In brief: always call this API with a known nid, pass crit, and a NULL idx.
If NULL is returned, crit != -1 is an error (malformed cert or allocation
failure).
ok jsing
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pthread -> mutex
stdint -> uint8_t
stdio.h -> asprintf
stdlib.h -> calloc
string.h -> memcpy
ecdsa -> ECDSA_METHOD leftover, remove
ec -> EC_KEY
evp -> EVP_PKEY
pem -> PEM_read_bio_X509
x509 -> X509
90% of the diff is from tb@, I only spotted the missing string.h :)
ok tb@
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OK tb@
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The combination of two bugs made this unexpectedly work as intended. To
appreciate this, let's first note that
a) check_issued(..., child, parent) checks if child was issued by parent.
b) X509_check_issued(child, parent) checks if parent was issued by child.
Now like in the real world, b) will only be true in unusual circumstances
(child is known not to be self-issued at this point). X509_check_issued()
fails by returning something different from X509_V_OK, so
return X509_check_issued(child, parent) != X509_V_OK;
will return true if child was issued by parent since then parent was indeed
not issued by child. On the other hand, if child was not issued by parent,
the verifier will notice elsewhere, e.g., in a signature check.
Fix this by reversing the order of child and parent in the above return
line and check for equality instead. This is nearly impossible to detect
in regress.
ok beck
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It's a trap!
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This is a false positive but as is well-known, gcc is terrible at
understanding conditionally initialized variables and it is tedious
to explain this to downstream maintainers who look at warnings.
ok miod
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Thanks to Viktor Szakats for figuring out that stdint.h was missing
in the portable tarballs.
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ssh tools. The dynamic objects are entirely ret-clean, static binaries
will contain a blend of cleaning and non-cleaning callers.
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requested by jsing on review
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HMAC() and the one-step digests used to support passing a NULL buffer and
would return the digest in a static buffer. This design is firmly from the
nineties, not thread safe and it saves callers a single line. The few ports
that used to rely this were fixed with patches sent to non-hostile (and
non-dead) upstreams. It's early enough in the release cycle that remaining
uses hidden from the compiler should be caught, at least the ones that
matter.
There won't be that many since BoringSSL removed this feature in 2017.
https://boringssl-review.googlesource.com/14528
Add non-null attributes to the headers and add a few missing bounded
attributes.
ok beck jsing
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failed was set to 0 at the top of the function, so failure and success
were indistinguishable. Move failed = 0 to the end so it can actually
fail.
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When called with a pointer to NULL as an output buffer, one would expect
an i2d API to allocate the buffer and return it. The implementation here
is special and the allocation dance was forgotten, resulting in a SIGSEGV.
Add said dance.
ok jsing
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