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Author SHA1 Message Date
Andrey Mozzhuhin
2181fb4af8 ftpd: new option -a ANON_USER to allow anonymous logins 
Anonymous ftpd login is useful even when ftpd authentication feature
is enabled. Anonymous logins provide simple password-less connection
for FTP clients.

To allow password-less connection user command line option '-a USER' is
added. This option specifies the system user to use when
'anonymous' username is given in USER command. No password is required
in this case.

function                                             old     new   delta
ftpd_main                                           2164    2232     +68
packed_usage                                       31015   31046     +31
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 99/0)               Total: 99 bytes

Signed-off-by: Andrey Mozzhuhin <amozzhuhin@yandex.ru>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-24 23:04:25 +01:00
Denys Vlasenko
dff9fefd50 wget: add support for -S --server-response 
Based on the patch by stephane.billiart@gmail.com

function                                             old     new   delta
ftpcmd                                                87     129     +42
fgets_and_trim                                        86     119     +33
static.wget_longopts                                 234     252     +18
packed_usage                                       31002   31015     +13
wget_main                                           2535    2540      +5
gethdr                                               158     163      +5
retrieve_file_data                                   424     428      +4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 7/0 up/down: 120/0)             Total: 120 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-24 21:41:43 +01:00
Denys Vlasenko
bca4ea8b68 remove "local" bashism from a few scripts 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-24 20:52:42 +01:00
Denys Vlasenko
89193f985b tls: can download kernels now :) 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-24 18:08:07 +01:00
Denys Vlasenko
1500b3a50d tls: if got CERTIFICATE_REQUEST, send an empty CERTIFICATE 
wolfssl test server is not satisfied by an empty one,
but some real servers might be.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-24 17:06:10 +01:00
Denys Vlasenko
49ecee098d tls: add 2nd cipher_id, TLS_RSA_WITH_AES_128_CBC_SHA, so far it doesn't work 
Good news that TLS_RSA_WITH_AES_256_CBC_SHA256 still works with new code ;)

This change adds inevitable extension to have different sized hashes and AES key sizes.
In libbb, md5_end() and shaX_end() are extended to return result size instead of void -
this helps *a lot* in tls (the cost is ~5 bytes per _end() function).

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-24 16:00:54 +01:00
Denys Vlasenko
9a64c3337c ls: convert DISP_DIRNAME to a bool variable 
function                                             old     new   delta
ls_main                                              553     548      -5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-23 20:46:12 +01:00
Denys Vlasenko
ccc1699e3e ls: get rid of opt_flags[], handle -l1c through option_mask32 
function                                             old     new   delta
display_single                                       885     888      +3
scan_and_display_dirs_recur                          496     486     -10
opt_flags                                             11       -     -11
ls_main                                              618     553     -65
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 1/2 up/down: 3/-86)             Total: -83 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-23 20:43:06 +01:00
Denys Vlasenko
92c6898e10 ls: handle -x through option_mask32, remove default -C from --help 
function                                             old     new   delta
packed_usage                                       31024   31002     -22

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-23 20:21:14 +01:00
Denys Vlasenko
4cde4cca65 ls: handle -d and -R through option_mask32 
function                                             old     new   delta
scan_and_display_dirs_recur                          545     550      +5
display_single                                      1039    1044      +5
append_char                                           67      68      +1
display_files                                        399     396      -3
ls_main                                              736     717     -19
opt_flags                                             68      11     -57
.rodata                                           168864  168784     -80
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/4 up/down: 11/-159)          Total: -148 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-23 20:08:22 +01:00
Denys Vlasenko
96d9c5bdbd ls: handle -p and -F through option_mask32 
function                                             old     new   delta
display_single                                      1039    1044      +5
append_char                                           67      68      +1
display_files                                        399     396      -3
scan_and_display_dirs_recur                          545     541      -4
ls_main                                              736     722     -14
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/3 up/down: 6/-21)             Total: -15 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-23 19:56:13 +01:00
Denys Vlasenko
51b01fda30 ls: LIST_ID_NAME/ID_NUMERIC/LOPT/LONG are the same, merge as LONG 
Also, handle -n and --full-time using option_mask32

function                                             old     new   delta
scan_and_display_dirs_recur                          548     545      -3
display_single                                      1053    1039     -14
ls_main                                              777     736     -41
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-58)             Total: -58 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-23 19:42:12 +01:00
Denys Vlasenko
a1cbaca1ba ls: make -Z output compatible with GNU coreutils 8.25 
This also makes it clear that LIST_MODEBITS == LIST_LOPT

function                                             old     new   delta
ls_main                                              752     777     +25
display_files                                        400     399      -1
display_single                                      1055    1053      -2
my_stat                                              320     317      -3
packed_usage                                       32311   32280     -31
.rodata                                           168895  168864     -31
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/5 up/down: 25/-68)            Total: -43 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-23 19:30:14 +01:00
Denys Vlasenko
2c3131d88e ls: LIST_NLINKS/SIZE/DATE_TIME/SYMLINK are always the same, merge as LIST_LOPT 
They are always set and cleared together

function                                             old     new   delta
append_char                                           69      68      -1
display_single                                       910     908      -2
ls_main                                              677     664     -13
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-16)             Total: -16 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-23 19:05:11 +01:00
Denys Vlasenko
5d43ddc59b ls: handle -s through option_mask32 
function                                             old     new   delta
scan_and_display_dirs_recur                          493     494      +1
sort_and_display_files                               424     423      -1
ls_main                                              682     677      -5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-23 18:43:43 +01:00
Denys Vlasenko
b60686cc2a ls: handle -i through option_mask32 
function                                             old     new   delta
sort_and_display_files                               420     424      +4

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-23 18:34:11 +01:00
Denys Vlasenko
f5bd6f631c ls: handle -a and -A through option_mask32 
function                                             old     new   delta
ls_main                                              685     682      -3

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-23 18:24:05 +01:00
Denys Vlasenko
11540a8da4 ls: handle all sort options through option_mask32 
function                                             old     new   delta
packed_usage                                       31007   31024     +17
my_stat                                              318     324      +6
sort_and_display_files                               419     420      +1
print_name                                           216     217      +1
sortcmp                                              228     216     -12
opt_flags                                             96      64     -32
ls_main                                              732     685     -47
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/3 up/down: 25/-91)            Total: -66 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-23 18:01:48 +01:00
Denys Vlasenko
7a18b9502a tls: reorder tls_handshake_data fields for smaller size, tweak comments 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-23 16:37:04 +01:00
Denys Vlasenko
b5bf1913d3 tls: send EMPTY_RENEGOTIATION_INFO_SCSV in our client hello 
Hoped this can make cdn.kernel.org to like us more. Nope.
While at it, made error reporting more useful.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-23 16:12:17 +01:00
Denys Vlasenko
9492da7e63 tls: set TLS_DEBUG to 0; placate a gcc indentation warning 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-23 01:15:13 +01:00
Denys Vlasenko
9a647c326a separate TLS code into a library, use in in wget 
A new applet, ssl_client, is the TLS debug thing now.
It doubles as wget's NOMMU helper.
In MMU mode, wget still forks, but then directly calls TLS code,
without execing.

This can also be applied to sendmail/popmail (SMTPS / SMTP+starttls support)
and nc --ssl (ncat, nmap's nc clone, has such option).

function                                             old     new   delta
tls_handshake                                          -    1691   +1691
tls_run_copy_loop                                      -     443    +443
ssl_client_main                                        -     128    +128
packed_usage                                       30978   31007     +29
wget_main                                           2508    2535     +27
applet_names                                        2553    2560      +7
...
xwrite_encrypted                                     360     342     -18
tls_main                                            2127       -   -2127
------------------------------------------------------------------------------
(add/remove: 4/1 grow/shrink: 13/8 up/down: 2351/-2195)       Total: 156 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-23 01:08:16 +01:00
Denys Vlasenko
e1f90d13fa ls: -1 should be ignored by -l (and options which imply -l) 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-22 22:02:19 +01:00
Denys Vlasenko
f580baf94a ls: more correct handling of -c, -u 
function                                             old     new   delta
my_stat                                              302     318     +16
packed_usage                                       30977   30969      -8
display_single                                       928     910     -18
sortcmp                                              258     228     -30
ls_main                                              776     732     -44
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/4 up/down: 16/-100)           Total: -84 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-22 19:02:57 +01:00
Denys Vlasenko
194b2ebd2a ls: replace -e with --full-time, add --group-directories-first, delete -K 
-K and -e were non-standard

function                                             old     new   delta
static.ls_longopts                                     9      47     +38
ls_main                                              748     776     +28
display_single                                       901     928     +27
sortcmp                                              254     258      +4
ls_options                                            32      31      -1
opt_flags                                            100      96      -4
packed_usage                                       31032   30977     -55
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/3 up/down: 97/-60)             Total: 37 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-22 17:32:20 +01:00
Denys Vlasenko
12389889c0 ip: better --help 
Was:
    Usage: ip [OPTIONS] address|route|link|tunnel|neigh|rule [COMMAND]

    ip [OPTIONS] OBJECT [COMMAND]
    where OBJECT := address|route|link|tunnel|neigh|rule
    OPTIONS := -f[amily] inet|inet6|link | -o[neline]

User: instead of repeating list of OBJECTs twice, you could at least
show available COMMANDs...

Now:
    Usage: ip [OPTIONS] address|route|link|tunnel|neigh|rule [COMMAND]

    OPTIONS := -f[amily] inet|inet6|link | -o[neline]
    COMMAND :=
    ip addr add|del IFADDR dev IFACE | show|flush [dev IFACE] [to PREFIX]
    ip route list|flush|add|del|change|append|replace|test ROUTE
    ip link set IFACE [up|down] [arp on|off] | show [IFACE]
    ip tunnel add|change|del|show [NAME]
        [mode ipip|gre|sit]
        [remote ADDR] [local ADDR] [ttl TTL]
    ip neigh show|flush [to PREFIX] [dev DEV] [nud STATE]
    ip rule [list] | add|del SELECTOR ACTION

While at it, tweak tc --help too (it stays disabled, thus no effect)

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-21 14:27:07 +01:00
Denys Vlasenko
8908c1d4f5 more ip --help fixes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-21 03:56:46 +01:00
Denys Vlasenko
f3d705f41b make --help texts smaller 
function                                             old     new   delta
packed_usage                                       31035   30968     -67

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-21 03:46:57 +01:00
Denys Vlasenko
bbc7bee966 make --help texts more uniform 
function                                             old     new   delta
packed_usage                                       31062   31035     -27

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-21 02:49:58 +01:00
Denys Vlasenko
f6e20724d4 tls: reorder tls_state fields for smaller offsets 
function                                             old     new   delta
xwrite_encrypted                                     363     360      -3
xwrite_and_update_handshake_hash                     117     114      -3
tls_xread_handshake_block                             72      69      -3
tls_error_die                                        211     202      -9
tls_get_outbuf                                        64      49     -15
tls_main                                            2163    2127     -36
tls_xread_record                                     702     639     -63
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/7 up/down: 0/-132)           Total: -132 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-21 02:08:34 +01:00
Denys Vlasenko
dd2577f21a tls: send SNI in the client hello 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-20 22:48:41 +01:00
Denys Vlasenko
0af5265180 tls: check size on "MAC-only, no crypt" code path too 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-20 21:23:10 +01:00
Denys Vlasenko
54b927d78b tls: AES decrypt does one unnecessary memmove 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-20 21:19:38 +01:00
Denys Vlasenko
3916139ac4 tls: make input buffer grow as needed 
As it turns out, it goes only up to "inbuf_size:4608"
for kernel.org - fixed 18kb buffer was x4 larger than necessary.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-20 20:27:06 +01:00
Denys Vlasenko
9731ca7611 password utils: improve --help, make DEFAULT_PASSWD_ALGO visible if CHPASSWD 
Was:
    $ cryptpw --help
    ...
    Print crypt(3) hashed PASSWORD

        -P,--password-fd=N	Read password from fd N
        -m,--method=TYPE	Encryption method
        -S,--salt=SALT

User: "What methods exist? which one os default?"

Now:
    Print crypt(3) hashed PASSWORD

        -P,--password-fd N	Read password from fd N
        -m,--method TYPE	des,md5,sha256/512 (default des)
        -S,--salt SALT

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-20 19:47:49 +01:00
Denys Vlasenko
38972a8df1 tls: improve i/o loop 
With tls_has_buffered_record(), entire kernel.org response
is printed at once, without 6 second pause to see its delayed EOF.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-20 19:11:14 +01:00
Denys Vlasenko
e7863f394e tls: was psAesDecrypt'ing one block too many, trashing buffered data 
For the first time

printf "GET / HTTP/1.1\r\nHost: kernel.org\r\n\r\n" | ./busybox tls kernel.org

successfully reads entire server response and TLS shutdown.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-20 18:04:04 +01:00
Denys Vlasenko
6e511393f9 rdate: time(NULL) is shorter than time(&var) 
function                                             old     new   delta
rdate_main                                           251     246      -5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-20 16:07:14 +01:00
Denys Vlasenko
179e88bec9 rdate: make it do something remotely sane, facing 32-bit time overflow 
function                                             old     new   delta
rdate_main                                           251     254      +3
packed_usage                                       31029   31023      -6

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-20 16:03:48 +01:00
Denys Vlasenko
19e695ebad tls: do not use common_bufsiz 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-20 14:27:58 +01:00
Denys Vlasenko
a0aae9f714 tls: decode alerts and in particular, EOF alert. 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-20 14:12:10 +01:00
Denys Vlasenko
abbf17abcc tls: add the i/o loop - largish rework of i/o buffering 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-20 03:15:09 +01:00
Denys Vlasenko
f7806f9d8f tls: fix ROL/ROR x86 optimization 
ALWAYS_INLINE:

function                                             old     new   delta
psAesInitKey                                         825     824      -1
ROR                                                    5       -      -5
setup_mix2                                           148     134     -14
psAesDecryptBlock                                   1184    1139     -45
psAesEncryptBlock                                   1193    1102     -91
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 0/4 up/down: 0/-156)           Total: -156 bytes

ALWAYS_INLINE + __builtin_constant_p(shift_cnt):

function                                             old     new   delta
ROR                                                    5       -      -5
psAesInitKey                                         825     818      -7
setup_mix2                                           148     123     -25
psAesDecryptBlock                                   1184    1078    -106
psAesEncryptBlock                                   1193    1017    -176
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 0/4 up/down: 0/-319)           Total: -319 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-19 16:45:41 +01:00
Denys Vlasenko
432f1ae2ff tls: tested PSTM_X86_64, not enabling it - too large 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-19 16:32:38 +01:00
Denys Vlasenko
6b1b004845 tls: commented out psPool_t use 
function                                             old     new   delta
psAesEncrypt                                         159     162      +3
der_binary_to_pstm                                    42      40      -2
xwrite_and_hash                                      437     434      -3
xread_tls_block                                      446     443      -3
pstm_div_2d                                          449     444      -5
psAesDecrypt                                         179     174      -5
pstm_init_size                                        52      45      -7
pstm_init                                             46      39      -7
pstm_to_unsigned_bin                                 165     157      -8
tls_main                                            1265    1256      -9
pstm_mulmod                                          132     123      -9
pstm_mod                                             125     116      -9
pstm_init_copy                                        93      84      -9
psAesInitKey                                         840     825     -15
send_client_key_exchange                             362     342     -20
psAesInit                                            103      80     -23
psRsaEncryptPub                                      429     403     -26
psAesDecryptBlock                                   1211    1184     -27
psAesEncryptBlock                                   1223    1193     -30
pstm_exptmod                                        1582    1524     -58
pstm_div                                            1557    1472     -85
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/20 up/down: 3/-360)          Total: -357 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-19 15:51:00 +01:00
Denys Vlasenko
1bfc4b85a7 ntpd: print result of hostname resolution 
This is particularly useful if hostname resolution is triggered by
host non-reachability: I saw this in real-life, without the message
it is not at all obvious that IP that we use for a specific host
has changed.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-19 14:42:34 +01:00
Denys Vlasenko
704c606f48 fdisk: add typical values of -H and -S to --help 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-19 14:29:42 +01:00
Denys Vlasenko
cccf8e735d tls: teach it to decrypt AES256-encrypted data 
This adds decryption only.
There is no MAC verification, code simply throws away MAC.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-19 00:20:45 +01:00
Denys Vlasenko
a9e1866806 tls: trim comments 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-18 21:00:23 +01:00
Denys Vlasenko
b5dfc3dfd6 tls: teach it to send AES256-encrypted data 
>> CLIENT_HELLO
wrote 50 bytes
insize:0 tail:0
got block len:74
got HANDSHAKE
<< SERVER_HELLO
insize:79 tail:0
got block len:2397
got HANDSHAKE
<< CERTIFICATE
key bytes:271, first:0x00
server_rsa_pub_key.size:256
insize:2402 tail:0
got block len:4
got HANDSHAKE
<< SERVER_HELLO_DONE
>> CLIENT_KEY_EXCHANGE
wrote 267 bytes
master secret:c51df5b1e3b3f57373cdd8ea28e8ce562059636cf9f585d0b89c7f4bacec97e674d7b91f93e7b500cb64637f240c3b78
client_write_MAC_key:3b0b7e2bab241b629c37eb3a3824f09b39fe71a00876b0c8026dda16ef0d2f82
client_write_key:d36e801470ed2f0a8fc886ac25df57ffbe4265d06e3192122c4ef4df1e32fab2
>> CHANGE_CIPHER_SPEC
from secret: c51df5b1e3b3f57373cdd8ea28e8ce562059636cf9f585d0b89c7f4bacec97e674d7b91f93e7b500cb64637f240c3b78
from labelSeed: 636c69656e742066696e6973686564b22e0e6008b8ee218cc02e4a93e4a42b570535f9b57662e262d43b379d125b69
=> digest: a45bfee8ed6507a2a9920d0c
>> FINISHED
before crypt: 5 hdr + 16 data + 32 hash bytes
writing 5 + 16 IV + 64 encrypted bytes, padding_length:0x0f
wrote 85 bytes
insize:9 tail:0
got block len:1
<< CHANGE_CIPHER_SPEC
insize:6 tail:0
got block len:80
< hdr_type:22 ver:3.3 len:80 type:21 len24:9541723 |1591985b...a3da|

The last line is the server's FINISHED response, encrypted.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-18 20:37:24 +01:00