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2020-06-10Provide an optimized implementation of ffs(3) in the kernel onnaddy3-0/+47
arm64/powerpc/powerpc64, making use of the count leading zeros instruction. powerpc testing by cwen@; ok kettenis@ deraadt@
2020-05-19If we pass a packet length larger than 2^16, we should panic() insteadpatrick1-5/+3
of returning -1. With a return type of u_int16_t, -1 is not different to a valid checksum. For incoming packets, the header lengths don't exceed that size anyway, but for outgoing packets it's better to see if our bootloader crafts a broken one. Discussed with gerhard@ ok deraadt@ procter@
2020-05-18Sync in_cksum.c to the same version ospfd has. This fixes problemspatrick2-30/+29
with odd packet lengths, which can happen when using TFTP to load a file with an odd length. ospfd actually took dvmrpd's version in 2006 to fix the same issue, and both daemons implementations are the same. For the bootloader we keep the consts from the previous version and replace the fatal with a print and return. ok deraadt@
2020-04-02Add __lshrti3 to libkern and use it on sparc64jca1-0/+71
With this it's possible to build the kernel using clang. Discussed with claudio@, ok deraadt@
2020-02-29Next step in prepping for ffs2 installs: introduce a new install script varotto1-0/+1
MDFSOPT and add a missing prototype.
2020-02-26Remove non-__STDC__ assert macros from <lib/libkern/libkern.h>.visa1-22/+1
The macros are defined in a part of the header where a C compiler is required. In addition, the macros expand to C code, so it looks unnecessary to define the asserts with traditional cpp in mind. OK cheloha@, mpi@
2019-11-29Add an element to the marks array to store the virtual address of thekettenis2-3/+5
entry point. ok mlarkin@, deraadt@
2019-11-28Implement a hexdump command in the boot loader. This helps tobluhm2-1/+54
inspect the memory layout that the firmware has created. It is especially useful for UEFI debugging. OK deraadt@ kettenis@
2019-11-05Give some END()s to assembly symbols.mpi4-4/+8
ok kettenis@, jca@
2019-11-01Reduce BOOTRANDOM_MAX to 256. naddy pointed out there's no point havingderaadt1-2/+2
it larger than RC4STATE. A long discussion ensued. In conclusion all entropy inputs are either satisfactory enough, or just as shitty at 512.
2019-10-29Use arc4 to bit-spread the 512-byte random buffer over the .openbsd.randomdataderaadt1-9/+8
section, which has grown a fair bit with the introduction of retguard. Mortimer discovered the repeated 512-byte sequence as retguard keys, and this resolves the issue. (Chacha does not fit on the media, so 1.5K early drop RC4 is hopefully sufficient in our KARL link universe) Version crank the bootblocks. sysupgrade -s will install new bootblocks. ok djm mortimer
2019-10-29add arc4 cipher to the bootblocksderaadt2-0/+118
ok djm mortimer
2019-08-03In the bootblocks, after discovering and opening /bsd.upgrade, fchmod -xderaadt6-6/+176
so the file cannot be re-executed upon the next boot. This provides a stronger one-shot-upgrade model than the upgrade script's rm /bsd.upgrade. Now various forms of upgrade failure will reboot into /bsd, which is probably more recoverable. Performing fchmod -x depends on (1) use of MI boot.c (not alpha/macppc/sparc64/sgi/octeon) and (2) "can write blocks" functionality in the IO layer. Most architectures have this support now. Two diagnostics "fchmod a-x %s: failed" and "/bsd.upgrade is not u+x" will remain in the tree while refinements happen for some of the laggard architectures. based upon a discussion florian tested in snapshots for more than a week without any complaints
2019-06-01Fix warnings when building zlib with ZLIB_CONST definedjca3-8/+8
Probably not very useful (given the lack of feedback) but feels more correct. Kernel part tested with option ZLIB_CONST.
2019-05-12Add ZLIB_CONSTjca2-6/+13
Introduced in zlib-1.2.5.2, used by a few ports. ok deraadt@
2019-05-11we have never built without %b supportderaadt2-7/+2
2019-04-25Add movstrSI12_i4 for linking -Os/-Oz kernels. Sadly however itderaadt1-0/+19
fails and locks early in boot.
2019-04-20libsa's memcpy() is actually memmove(). make a proper memmove(), and givederaadt4-13/+63
memcpy() correct behaviour. This also brings the bcopy() macro into line.
2019-04-10change marks[] array to uint64_t, so the code can track full 64-bitderaadt3-9/+9
details from the ELF header instead of faking it. Proposal from mlarkin, tested on most architectures already
2019-01-25I am retiring my old email address; replace it with my OpenBSD one.millert3-6/+6
2018-12-16Make the freelist best fit code a tiny bit smarter to not use a block ifotto1-2/+2
half or more would be wasted. Causes more effective re-use of blocks. ok jsing@
2018-08-10Retry on incorrect passphrase for softraid crypto boot.jsing2-72/+122
Historically, the softraid crypto support in the boot loaders has only given one attempt to provide the correct passphrase. There were a few reasons for this, including the fact that pkcs5_pbkdf2() allows an empty passphrase and that returning EPERM allowed for another attempt. With the event of KARL and the need for bsd.booted with hibernate resumption, this becomes much more of an issue - if you get the passphrase wrong you fail to resume. There are also other situations like using /etc/boot.conf to switch serial console, but an incorrect passphrase results in the config not being read. Also, bcrypt_pbkdf() does not permit empty passphrases. This reworks the softraid crypto support in the boot loaders so that it loops requesting a valid passphrase until one is provided, or an empty passphrase is entered (at which point it will abort). ok mortimer@ tb@
2018-07-13Use _ALIGN_TRAPS instead of _ALIGN_TEXT where nops aren't needed.guenther3-6/+6
ok deraadt@
2018-07-10In asm.h ensure NENTRY uses the old-school nop-sled align, but change standardderaadt3-5/+5
ENTRY is a trapsled. Fix a few functions which fall-through into an ENTRY macro. amd64 binaries now are free of double+-nop sequences (except for one assember nit in aes-586.pl). Previous changes by guenther got us here. ok mortimer kettenis
2018-07-03Add retguard macros for libkernmortimer15-12/+43
ok deraadt
2018-05-23Align libsa ctime output with libc ctime output.cheloha1-3/+2
Use zero-padding to get double-digit HH:MM:SS and space-padding for the DOM. ok visa@
2018-04-25use size_t for the size of buffers and strings, not int.dlg2-6/+8
sprinkle some bounded attributes while here. ok deraadt@
2018-03-31Stop converting UDP and IP header values from network endianness to hostpatrick1-10/+7
endianness for convenience reasons. Especially in code pathes like TFTP where the source port is read from the received UDP packet and used as destination port in a new UDP packet this can be very harmful. Luckily this issue has had no effect on our architectures since they never use any of the code paths that could be harmful. ok visa@
2018-01-17Implement basic padding support in libsa so we can do zero-paddingpatrick1-18/+55
in bootloader printfs. Feedback from and ok gerhard@
2017-11-10"unknown KDF type 2" -> "keydisk not found".sunil1-1/+4
Inputs and ok jsing@.
2017-10-26Add aliases for __aeabi_idivmod and __aeabi_uidivmod calls clang emits.jsg1-1/+3
Remainder of the division is already stored in r1 in __divsi3/__udivsi3. ok kettenis@
2017-10-08Revert: libsa lacks memmove currently; a more thorough rename/change isguenther1-2/+2
needed problem noted by naddy@
2017-10-07bcopy() is expected to be overlap safe, so it implement it with memmove()guenther1-2/+2
not memcpy(). 'oh oh' deraadt@
2017-09-08If you use sys/param.h, you don't need sys/types.hderaadt2-4/+2
2017-08-20Fix the __sync_* functions to make them work properlyvisa1-1/+21
as full memory barriers.
2017-05-31make the AES-XTS mode a little more constant-time, though the AESdjm1-5/+4
implementation that it depends on currently isn't. ok mikeb tom
2017-05-27move sha224_initial_hash_value[] under !SHA2_SMALL; ok deraadt@ millert@naddy1-13/+13
2017-05-21Enable radeondrm(4) on loongson to get accelerated graphicsvisa1-0/+317
with the RS780E chipset. OK kettenis@, jsg@
2017-05-08Guard debug printf with NFS_DEBUG ifdef like the other debug prints.patrick1-1/+3
ok tom@
2017-01-24In preparation of compiling our kernels with -ffreestanding, explicitly mapkettenis7-7/+22
a few performance-critical functions to compiler builtins. Since the builtins supported by gcc3, gcc4 and clang are not the same, there are (unfortunately) some compiler checks to make sure we only do the mapping for builtins that are actually supported by the compiler. ok jca@, tom@, guenther@
2016-11-27Add missing OpenBSD CVS tagsreyk2-0/+4
2016-11-25Fix signedness warnings with careful casts and replace a re-defined variable.reyk2-17/+17
OK krw@
2016-11-14Copy data by using 64-bit loads and stores rather than 32-bitvisa1-1/+53
operations. This about doubles the routine's throughput. No binary change on the 32-bit bootblocks Discussed with miod@ long ago
2016-09-24Add an implementation of __aeabi_ldivmode() and __aeabi_uldivmod(); clangkettenis2-0/+183
generates calls to these functions when compiling an armv7 kernel. Code from NetBSD's unified userland+kernel implementation, with lots of irrelevant (for us) #ifdefs removed. ok patrick@, guenther@
2016-09-22Add aeabi aliases.kettenis1-1/+4
ok guenther@, patrick@
2016-09-18Add bcrypt pbkdf support to the softraid crypto boot loader code.jsing1-5/+28
Based on a diff from djm@
2016-09-18Correctly handle short read()s in the libsa gzip handling lseek(). Alsojsing1-5/+8
avoid masking the errno from a failed read(). ok guenther@ tom@
2016-09-17move the .SUNW_ctf section name definition to exec_elf.h and document it in elf(5)jasper1-2/+2
feedback from guenther@ ok guenther@ kettenis@
2016-09-16unifdef SAVE_MEMORY which is no longer set nor usedjasper1-9/+1
ok deraadt@ millert@
2016-09-13when loading the kernel binary, also load the .SUNW_ctf section when present,jasper1-2/+3
which holds the CTF data. ok mpi@
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