When --verify-signatures is specified, abort the merge in case a good
GPG signature from an untrusted key is encountered.
Signed-off-by: Sebastian Götte <jaseg@xxxxxxxxxxxxxxxxxxxxxxxx>
---
Documentation/merge-options.txt | 4 ++--
builtin/merge.c | 2 ++
commit.c | 2 ++
commit.h | 10 +++++-----
gpg-interface.h | 1 +
t/lib-gpg/pubring.gpg | Bin 1164 -> 2359 bytes
t/lib-gpg/random_seed | Bin 600 -> 600 bytes
t/lib-gpg/secring.gpg | Bin 1237 -> 3734 bytes
t/lib-gpg/trustdb.gpg | Bin 1280 -> 1360 bytes
t/t7612-merge-verify-signatures.sh | 9 +++++++++
10 files changed, 21 insertions(+), 7 deletions(-)
diff --git a/Documentation/merge-options.txt b/Documentation/merge-options.txt
index 31f1067..a0f022b 100644
--- a/Documentation/merge-options.txt
+++ b/Documentation/merge-options.txt
@@ -85,8 +85,8 @@ option can be used to override --squash.
--verify-signatures::
--no-verify-signatures::
- Verify that the commits being merged have good GPG signatures and abort the
- merge in case they do not.
+ Verify that the commits being merged have good and trusted GPG signatures
+ and abort the merge in case they do not.
--summary::
--no-summary::
diff --git a/builtin/merge.c b/builtin/merge.c
index 7a33d03..752e3a9 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -1248,6 +1248,8 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
switch(signature_check.result){
case 'G':
break;
+ case 'U':
+ die(_("Commit %s has a good, untrusted GPG signature allegedly by %s."), hex, signature_check.signer);
case 'B':
die(_("Commit %s has a bad GPG signature allegedly by %s."), hex, signature_check.signer);
default: /* 'N' */
diff --git a/commit.c b/commit.c
index ca11919..0a49e2b 100644
--- a/commit.c
+++ b/commit.c
@@ -1027,6 +1027,8 @@ static struct {
char result;
const char *check;
} sigcheck_gpg_status[] = {
+ { 'U', "[GNUPG:] TRUST_UNDEFINED" },
+ { 'U', "[GNUPG:] TRUST_NEVER" },
{ 'G', "[GNUPG:] GOODSIG " },
{ 'B', "[GNUPG:] BADSIG " },
};
diff --git a/commit.h b/commit.h
index 8bbcf13..27d9b36 100644
--- a/commit.h
+++ b/commit.h
@@ -232,11 +232,11 @@ extern void print_commit_list(struct commit_list *list,
const char *format_last);
/*
- * Check the signature of the given commit. The result of the check is stored in
- * sig->result, 'G' for a good signature, 'B' for a bad signature and 'N'
- * for no signature at all.
- * This may allocate memory for sig->gpg_output, sig->gpg_status, sig->signer
- * and sig->key.
+ * Check the signature of the given commit. The result of the check is stored
+ * in sig->check_result, 'G' for a good signature, 'U' for a good signature
+ * from an untrusted signer, 'B' for a bad signature and 'N' for no signature
+ * at all. This may allocate memory for sig->gpg_output, sig->gpg_status,
+ * sig->signer and sig->key.
*/
extern void check_commit_signature(const struct commit* commit, struct signature_check *sigc);
diff --git a/gpg-interface.h b/gpg-interface.h
index 5884aa4..a85cb5b 100644
--- a/gpg-interface.h
+++ b/gpg-interface.h
@@ -6,6 +6,7 @@ struct signature_check {
char *gpg_status;
char result; /* 0 (not checked),
* N (checked but no further result),
+ * U (untrusted good),
* G (good)
* B (bad) */
char *signer;
diff --git a/t/lib-gpg/pubring.gpg b/t/lib-gpg/pubring.gpg
index 83855fa4e1c6c37afe550c17afa1e7971042ded5..1a3c2d487c2fda9169751a3068fa51e853a1e519 100644
GIT binary patch
delta 1212
zcmV;t1Vj6b3AYlkj0As~0SyFEOqNFh2mr~8{AU1PG9!Ku9w|}@vpZJPg*#s86v-*O
zhafj(DL&&lF<A0)`tvC$E@WHJ2r~0{0ZCh1kHo$b9ih^aD*~)oVvK&yC1(yi)6x_y
zF8V3JpbIY^ZYQ&<Uk#j*ja0`;jw^J+5~!h3qc)ej%g1;Wb0U8cXSuLKdXkx2PUtB4
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zLN~K=bO>hGBes9{Fcqzh%Wj2h^{ZjI01*KI0kkAVa%poQL}_zlZ*pX5VIVwYX>((5
za%4bdcwudDY-KKPWpqA?0XPH`0RjLb1p-k_mPY~`0|pBT2nPcK1{DYb2?`4Y76JnS
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zxGq=+xQGR&r@3$S<0@SUu@@UuxUH%pD3Q-D`?37Vg*xmo<%+KD)(U~k>XU^b+=70V
zFr?b3DvlFq^B*d%lz=lr!ch6nQbvcwWCD}n2DT3`r?RDkq=7r}qFvEh<dfApA7yR;
z8`OB;$TEKm@jkwG=8vlcKFd>rcM8+9eP66QueaUSz6NhphD3O@E(iX7T@2kxV(dXd
zxG_$z;qqdh<Np6*{J!OD7<b;8M6otxRi0UUN|OngZ4NdYbeU0hneiVEwY2h5xZ4z{
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zc)VOU|M7H$nU~Bd&(!9WlLk)V)&z>UY~vSc_rVFe1JAY7ThlG1IzE9z6>ly;9W<Ie
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zqt%Wq<wPe#N15ysVyQhrRmcBJ^&Q!GEW&Mp#@%c+q~S#5UAR4_eeRejBs87Xv&Yt)
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a9*zs=xM)EjeiKg!$s4>o369jT0ssS^s3f2O
delta 7
Ocmdlk)Wf-<hXnu&fC8TY
diff --git a/t/lib-gpg/random_seed b/t/lib-gpg/random_seed
index 8fed1339ed0a744e5663f4a5e6b6ac9bae3d8524..95d249f15fce980f0e8c1a8a18b085b3885708aa 100644
GIT binary patch
literal 600
zcmV-e0;m1ccZd+x>>TST*Lrq1x^ggx^+ymwieO!6X=U~ZH@{avIgxdn#ai{)Ou@Qw
za}Z!boffEq^fn)n?c=IEnDpt59Lnc)aR*;8Z;k>gh_NW;ka;7Mt@v#sG(!Y9SSXWv
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zv-|;8Y4(NRHWPyJ{epd{4%FHQKk5j}?0FFDAJ;0kIItZ4y<JS?DIG4~0!#x~;X`!P
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zNmnYeFxUMu=m$K5&s=5_F&JSR#oU3Y#X{(q7HTp-VYJ)%JjihbZ@R#GeqmU{>0C4Q
zc}hUG+ighB{7XSaNw_h;=YtqacQ<B(Cg$e)^NTDD-oMD+T`O#-^|-ib>j!<pxHg+(
zlC$%zE836|E*F*((=>O{Nn@K$taZO}!>$t>GMgsw?!=n_#(%X9Ha|$b=H@VstWYe;
zPUQ<L$$#9HTcOLoyEd6*A4TOEe3}c}GiW*^P1Lt{nHYUEAB`Qx7*wizaEyM$?AjVN
mb-6m)4=6PVqdR>h+D!{<c#q1!T9b(}OW7hrrT@nJcBO(OGA4ll
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zcmV-e0;m1=h9nBV>1C6QsKJEiEJaD@Q3F8s5u<$E+<2(By)JAZSxviTsXg(wKC+O%
zzvV{Z>W3*k?r7~pgmmkbw8-x{Am!eeN)z?cwIHcT2jqgiA(SXo<iO=E?cY80`p#w8
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z-AOW(3WuF+7IdSxMnzrDgnMqVU=|+YFxlY|VeR+Fg<%C@0Xupi0<S7QYJyFTR$}FQ
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z+V{Lt!_`eKGhyk5Edie{-^#n!TFlsfux*QBRZEh^4SVePPmb{BvF|>sKd2cYg@vKp
mVI8jcB1(k(tlt^Kr<{EMs>|b*d70nyVMQcc%xEnE(#Uq3d^-35
diff --git a/t/lib-gpg/secring.gpg b/t/lib-gpg/secring.gpg
index d831cd9eb3eee613d3c0e1a71093ae01ea7347e3..82dca8f80bf170fde5705862c3eeb9d994725042 100644
GIT binary patch
delta 2524
zcmV<22_yE^36>qO)dYW)1DFI+OqNFh2mr~8{AU1PG9!Ku9w|}@vpZJPg*#s86v-*O
zhafj(DL&&lF<A0)`tvC$E@WHJ2r~0{0ZCh1kHo$b9ih^aD*~)oVvK&yC1(yi)6x_y
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z8C@tnj=CqkffSLs=a-5G+h;Y8bkw<s-iIgT{$f^j!)l`hmkz}$nZPxBoPmwU;zIH^
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delta 7
OcmbOxdzEv;RTcmY+5;N^
diff --git a/t/lib-gpg/trustdb.gpg b/t/lib-gpg/trustdb.gpg
index abace962b8bf84be688a6f27e4ebd0ee7052f210..4879ae9a84650a93a4d15bd6560c5d1b89eb4c2f 100644
GIT binary patch
delta 133
zcmZqRy1*sEm|l?1%*@Ej$i%=9=re5@0|Nu&L_y(=>YJDu6*k{umSl_t3LyXw!<BtX
zhEkV><>GE>E=lCnYu&C?*vSl0pomb%%dj-dsEA)Mq*Svt$mH(j_twWhW_@KtD1fp6
DE~Fa=
delta 52
zcmcb>)xagdm|l?1%*@Ej$iTqhmVVlAqM`Uk^-atZ9rz~(oS3|U#hLd&3{VON0Ad;p
ADF6Tf
diff --git a/t/t7612-merge-verify-signatures.sh b/t/t7612-merge-verify-signatures.sh
index 6ccfbf3..94039a7 100755
--- a/t/t7612-merge-verify-signatures.sh
+++ b/t/t7612-merge-verify-signatures.sh
@@ -27,6 +27,10 @@ test_expect_success GPG 'create signed commits' '
git hash-object -w -t commit forged >forged.commit &&
git checkout initial &&
+ git checkout -b side-untrusted &&
+ echo 3 >baz && git add baz &&
+ test_tick && git commit -SB7227189 -m "untrusted on side"
+
git checkout master
'
@@ -40,6 +44,11 @@ test_expect_success GPG 'merge commit with bad signature with verification' '
test_i18ngrep "has a bad GPG signature" mergeerror
'
+test_expect_success GPG 'merge commit with untrusted signature with verification' '
+ test_must_fail git merge --ff-only --verify-signatures side-untrusted 2>mergeerror &&
+ test_i18ngrep "has a good, untrusted GPG signature" mergeerror
+'
+
test_expect_success GPG 'merge signed commit with verification' '
git merge --verbose --ff-only --verify-signatures side-signed >mergeoutput &&
test_i18ngrep "has a good GPG signature" mergeoutput
--
1.8.1.5
--
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