diff options
author | Jason Wessel <jason.wessel@windriver.com> | 2018-06-15 08:19:23 -0700 |
---|---|---|
committer | Bruce Ashfield <bruce.ashfield@windriver.com> | 2018-06-19 12:29:33 -0400 |
commit | 646259f4d50bdfc0bd3d6ebd9c20bd8bd7251310 (patch) | |
tree | 04b0f2270000b954d77068e56b4086db96a30f17 | |
parent | 8af86bc72dc7313d8a81e0e8897efbd044575b15 (diff) | |
download | meta-virtualization-646259f4d50bdfc0bd3d6ebd9c20bd8bd7251310.tar.gz |
hyperstart: Fix compiler errors from gcc 8.1.0 uprev
The patch to hypterstart was also submitted to the upstream project.
It fixes these errors/warnings:
container.c: In function 'hyper_setup_container_rootfs':
container.c:630:24: error: '/' directive writing 1 byte into a region of size between 0 and 511 [-Werror=format-overflow=]
sprintf(rootfs, "%s/%s/", root, container->rootfs);
^
container.c:630:2: note: 'sprintf' output 3 or more bytes (assuming 514) into a destination of size 512
sprintf(rootfs, "%s/%s/", root, container->rootfs);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
container.c:262:18: error: '%s' directive writing up to 511 bytes into a region of size 510 [-Werror=format-overflow=]
sprintf(dst, "./%s", src);
^~ ~~~
container.c:262:2: note: 'sprintf' output between 3 and 514 bytes into a destination of size 512
sprintf(dst, "./%s", src);
^~~~~~~~~~~~~~~~~~~~~~~~~
container.c:218:24: error: '/_data' directive writing 6 bytes into a region of size between 1 and 512 [-Werror=format-overflow=]
sprintf(volume, "%s/_data", path);
^~~~~~
container.c:218:5: note: 'sprintf' output between 7 and 518 bytes into a destination of size 512
sprintf(volume, "%s/_data", path);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
container.c:149:24: error: '/_data' directive writing 6 bytes into a region of size between 0 and 511 [-Werror=format-overflow=]
sprintf(volume, "/%s/_data", path);
^~~~~~
container.c:149:4: note: 'sprintf' output between 8 and 519 bytes into a destination of size 512
sprintf(volume, "/%s/_data", path);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
container.c:131:24: error: '/' directive writing 1 byte into a region of size between 0 and 511 [-Werror=format-overflow=]
sprintf(volume, "/%s/", path);
^
container.c:131:4: note: 'sprintf' output between 3 and 514 bytes into a destination of size 512
sprintf(volume, "/%s/", path);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
container.c:176:24: error: '/_data/' directive writing 7 bytes into a region of size between 0 and 511 [-Werror=format-overflow=]
sprintf(volume, "/%s/_data/%s", path, filevolume);
^~~~~~~
container.c:176:4: note: 'sprintf' output 9 or more bytes (assuming 520) into a destination of size 512
sprintf(volume, "/%s/_data/%s", path, filevolume);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
-rw-r--r-- | recipes-extended/hyperstart/hyperstart/0001-container.c-Fix-compiler-errors-that-gcc-8.1.0-repor.patch | 230 | ||||
-rw-r--r-- | recipes-extended/hyperstart/hyperstart_git.bb | 1 |
2 files changed, 231 insertions, 0 deletions
diff --git a/recipes-extended/hyperstart/hyperstart/0001-container.c-Fix-compiler-errors-that-gcc-8.1.0-repor.patch b/recipes-extended/hyperstart/hyperstart/0001-container.c-Fix-compiler-errors-that-gcc-8.1.0-repor.patch new file mode 100644 index 00000000..4a01de5b --- /dev/null +++ b/recipes-extended/hyperstart/hyperstart/0001-container.c-Fix-compiler-errors-that-gcc-8.1.0-repor.patch | |||
@@ -0,0 +1,230 @@ | |||
1 | From 11f5089300c1c368d896c95890827dc85a67f132 Mon Sep 17 00:00:00 2001 | ||
2 | From: Jason Wessel <jason.wessel@windriver.com> | ||
3 | Date: Fri, 15 Jun 2018 08:04:35 -0700 | ||
4 | Subject: [PATCH] container.c: Fix compiler errors that gcc 8.1.0 reports | ||
5 | |||
6 | gcc 8.1.0 reports the following compiler errors/warnings. They can be | ||
7 | fixed by using snprintf and checking the result for truncation. This | ||
8 | patch also uses a named constant instead of inserting the value 512 in | ||
9 | many locations. | ||
10 | |||
11 | container.c: In function 'hyper_setup_container_rootfs': | ||
12 | container.c:630:24: error: '/' directive writing 1 byte into a region of size between 0 and 511 [-Werror=format-overflow=] | ||
13 | sprintf(rootfs, "%s/%s/", root, container->rootfs); | ||
14 | ^ | ||
15 | container.c:630:2: note: 'sprintf' output 3 or more bytes (assuming 514) into a destination of size 512 | ||
16 | sprintf(rootfs, "%s/%s/", root, container->rootfs); | ||
17 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | ||
18 | container.c:262:18: error: '%s' directive writing up to 511 bytes into a region of size 510 [-Werror=format-overflow=] | ||
19 | sprintf(dst, "./%s", src); | ||
20 | ^~ ~~~ | ||
21 | container.c:262:2: note: 'sprintf' output between 3 and 514 bytes into a destination of size 512 | ||
22 | sprintf(dst, "./%s", src); | ||
23 | ^~~~~~~~~~~~~~~~~~~~~~~~~ | ||
24 | container.c:218:24: error: '/_data' directive writing 6 bytes into a region of size between 1 and 512 [-Werror=format-overflow=] | ||
25 | sprintf(volume, "%s/_data", path); | ||
26 | ^~~~~~ | ||
27 | container.c:218:5: note: 'sprintf' output between 7 and 518 bytes into a destination of size 512 | ||
28 | sprintf(volume, "%s/_data", path); | ||
29 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | ||
30 | container.c:149:24: error: '/_data' directive writing 6 bytes into a region of size between 0 and 511 [-Werror=format-overflow=] | ||
31 | sprintf(volume, "/%s/_data", path); | ||
32 | ^~~~~~ | ||
33 | container.c:149:4: note: 'sprintf' output between 8 and 519 bytes into a destination of size 512 | ||
34 | sprintf(volume, "/%s/_data", path); | ||
35 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | ||
36 | container.c:131:24: error: '/' directive writing 1 byte into a region of size between 0 and 511 [-Werror=format-overflow=] | ||
37 | sprintf(volume, "/%s/", path); | ||
38 | ^ | ||
39 | container.c:131:4: note: 'sprintf' output between 3 and 514 bytes into a destination of size 512 | ||
40 | sprintf(volume, "/%s/", path); | ||
41 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | ||
42 | container.c:176:24: error: '/_data/' directive writing 7 bytes into a region of size between 0 and 511 [-Werror=format-overflow=] | ||
43 | sprintf(volume, "/%s/_data/%s", path, filevolume); | ||
44 | ^~~~~~~ | ||
45 | container.c:176:4: note: 'sprintf' output 9 or more bytes (assuming 520) into a destination of size 512 | ||
46 | sprintf(volume, "/%s/_data/%s", path, filevolume); | ||
47 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | ||
48 | |||
49 | Signed-off-by: Jason Wessel <jason.wessel@windriver.com> | ||
50 | --- | ||
51 | src/container.c | 47 ++++++++++++++++++++++++++++------------------- | ||
52 | 1 file changed, 28 insertions(+), 19 deletions(-) | ||
53 | |||
54 | diff --git a/src/container.c b/src/container.c | ||
55 | index 0938d82..b1c52d4 100644 | ||
56 | --- a/src/container.c | ||
57 | +++ b/src/container.c | ||
58 | @@ -22,6 +22,8 @@ | ||
59 | #include "syscall.h" | ||
60 | #include "netlink.h" | ||
61 | |||
62 | +#define MAX_PBUF 512 | ||
63 | + | ||
64 | static int container_populate_volume(char *src, char *dest) | ||
65 | { | ||
66 | struct stat st; | ||
67 | @@ -99,12 +101,12 @@ static int container_setup_volume(struct hyper_pod *pod, | ||
68 | struct hyper_container *container) | ||
69 | { | ||
70 | int i; | ||
71 | - char dev[512], path[512]; | ||
72 | + char dev[MAX_PBUF], path[MAX_PBUF]; | ||
73 | struct volume *vol; | ||
74 | |||
75 | for (i = 0; i < container->vols_num; i++) { | ||
76 | - char volume[512]; | ||
77 | - char mountpoint[512]; | ||
78 | + char volume[MAX_PBUF]; | ||
79 | + char mountpoint[MAX_PBUF]; | ||
80 | char *options = NULL; | ||
81 | const char *filevolume = NULL; | ||
82 | vol = &container->vols[i]; | ||
83 | @@ -128,7 +130,8 @@ static int container_setup_volume(struct hyper_pod *pod, | ||
84 | if (hyper_mount_nfs(vol->device, path) < 0) | ||
85 | return -1; | ||
86 | /* nfs export has implicitly included _data part of the volume */ | ||
87 | - sprintf(volume, "/%s/", path); | ||
88 | + if (snprintf(volume, MAX_PBUF, "/%s/", path) >= MAX_PBUF) | ||
89 | + return -1; | ||
90 | } else { | ||
91 | fprintf(stdout, "mount %s to %s, tmp path %s\n", | ||
92 | dev, vol->mountpoint, path); | ||
93 | @@ -137,7 +140,7 @@ static int container_setup_volume(struct hyper_pod *pod, | ||
94 | options = "nouuid"; | ||
95 | |||
96 | if (access(dev, R_OK) < 0) { | ||
97 | - char device[512]; | ||
98 | + char device[MAX_PBUF]; | ||
99 | sprintf(device, "/block/%s", vol->device); | ||
100 | hyper_netlink_wait_dev(pod->ueventfd, device); | ||
101 | } | ||
102 | @@ -146,7 +149,8 @@ static int container_setup_volume(struct hyper_pod *pod, | ||
103 | perror("mount volume device failed"); | ||
104 | return -1; | ||
105 | } | ||
106 | - sprintf(volume, "/%s/_data", path); | ||
107 | + if (snprintf(volume, MAX_PBUF, "/%s/_data", path) >= MAX_PBUF) | ||
108 | + return -1; | ||
109 | } | ||
110 | |||
111 | if (container_check_file_volume(volume, &filevolume) < 0) | ||
112 | @@ -173,7 +177,8 @@ static int container_setup_volume(struct hyper_pod *pod, | ||
113 | perror("create volume file failed"); | ||
114 | return -1; | ||
115 | } | ||
116 | - sprintf(volume, "/%s/_data/%s", path, filevolume); | ||
117 | + if (snprintf(volume, MAX_PBUF, "/%s/_data/%s", path, filevolume) >= MAX_PBUF) | ||
118 | + return -1; | ||
119 | /* 0777 so that any user can read/write the new file volume */ | ||
120 | if (chmod(volume, 0777) < 0) { | ||
121 | fprintf(stderr, "fail to chmod directory %s\n", volume); | ||
122 | @@ -197,9 +202,9 @@ static int container_setup_volume(struct hyper_pod *pod, | ||
123 | |||
124 | for (i = 0; i < container->maps_num; i++) { | ||
125 | struct stat st; | ||
126 | - char *src, path[512], volume[512]; | ||
127 | + char *src, path[MAX_PBUF], volume[MAX_PBUF]; | ||
128 | struct fsmap *map = &container->maps[i]; | ||
129 | - char mountpoint[512]; | ||
130 | + char mountpoint[MAX_PBUF]; | ||
131 | |||
132 | sprintf(path, "%s/%s", SHARED_DIR, map->source); | ||
133 | sprintf(mountpoint, "./%s", map->path); | ||
134 | @@ -215,7 +220,8 @@ static int container_setup_volume(struct hyper_pod *pod, | ||
135 | } | ||
136 | if (map->docker) { | ||
137 | /* converted from volume */ | ||
138 | - sprintf(volume, "%s/_data", path); | ||
139 | + if (snprintf(volume, MAX_PBUF, "%s/_data", path) >= MAX_PBUF) | ||
140 | + return -1; | ||
141 | src = volume; | ||
142 | if (container->initialize && | ||
143 | (container_populate_volume(mountpoint, volume) < 0)) { | ||
144 | @@ -251,7 +257,7 @@ static int container_setup_modules(struct hyper_container *container) | ||
145 | { | ||
146 | struct stat st; | ||
147 | struct utsname uts; | ||
148 | - char src[512], dst[512]; | ||
149 | + char src[MAX_PBUF], dst[MAX_PBUF]; | ||
150 | |||
151 | if (uname(&uts) < 0) { | ||
152 | perror("fail to call uname"); | ||
153 | @@ -259,7 +265,8 @@ static int container_setup_modules(struct hyper_container *container) | ||
154 | } | ||
155 | |||
156 | sprintf(src, "/lib/modules/%s", uts.release); | ||
157 | - sprintf(dst, "./%s", src); | ||
158 | + if (snprintf(dst, MAX_PBUF, "./%s", src) >= MAX_PBUF) | ||
159 | + return -1; | ||
160 | |||
161 | if (stat(dst, &st) == 0) { | ||
162 | struct dirent **list; | ||
163 | @@ -291,7 +298,7 @@ static int container_setup_modules(struct hyper_container *container) | ||
164 | |||
165 | static int container_setup_mount(struct hyper_container *container) | ||
166 | { | ||
167 | - char src[512]; | ||
168 | + char src[MAX_PBUF]; | ||
169 | |||
170 | // current dir is container rootfs, the operations on "./PATH" are the operations on container's "/PATH" | ||
171 | if (!container->readonly) { | ||
172 | @@ -546,7 +553,7 @@ static int hyper_setup_container_rootfs(void *data) | ||
173 | { | ||
174 | struct hyper_container_arg *arg = data; | ||
175 | struct hyper_container *container = arg->c; | ||
176 | - char root[512], rootfs[512]; | ||
177 | + char root[MAX_PBUF], rootfs[MAX_PBUF]; | ||
178 | int setup_dns; | ||
179 | |||
180 | /* wait for ns-opened ready message */ | ||
181 | @@ -609,7 +616,7 @@ static int hyper_setup_container_rootfs(void *data) | ||
182 | goto fail; | ||
183 | } | ||
184 | } else { | ||
185 | - char path[512]; | ||
186 | + char path[MAX_PBUF]; | ||
187 | |||
188 | sprintf(path, "%s/%s/", SHARED_DIR, container->image); | ||
189 | fprintf(stdout, "src directory %s\n", path); | ||
190 | @@ -627,7 +634,9 @@ static int hyper_setup_container_rootfs(void *data) | ||
191 | fprintf(stdout, "root directory for container is %s/%s, init task %s\n", | ||
192 | root, container->rootfs, container->exec.argv[0]); | ||
193 | |||
194 | - sprintf(rootfs, "%s/%s/", root, container->rootfs); | ||
195 | + if (snprintf(rootfs, MAX_PBUF, "%s/%s/", root, container->rootfs) >= MAX_PBUF) | ||
196 | + goto fail; | ||
197 | + | ||
198 | if (mount(rootfs, rootfs, NULL, MS_BIND|MS_REC, NULL) < 0) { | ||
199 | perror("failed to bind rootfs"); | ||
200 | goto fail; | ||
201 | @@ -710,7 +719,7 @@ fail: | ||
202 | |||
203 | static int hyper_setup_pty(struct hyper_container *c) | ||
204 | { | ||
205 | - char root[512]; | ||
206 | + char root[MAX_PBUF]; | ||
207 | |||
208 | sprintf(root, "/tmp/hyper/%s/devpts/", c->id); | ||
209 | |||
210 | @@ -730,7 +739,7 @@ static int hyper_setup_pty(struct hyper_container *c) | ||
211 | |||
212 | static void hyper_cleanup_pty(struct hyper_container *c) | ||
213 | { | ||
214 | - char path[512]; | ||
215 | + char path[MAX_PBUF]; | ||
216 | |||
217 | sprintf(path, "/tmp/hyper/%s/devpts/", c->id); | ||
218 | if (umount(path) < 0) | ||
219 | @@ -739,7 +748,7 @@ static void hyper_cleanup_pty(struct hyper_container *c) | ||
220 | |||
221 | int container_prepare_rootfs_dev(struct hyper_container *container, struct hyper_pod *pod) | ||
222 | { | ||
223 | - char dev[512]; | ||
224 | + char dev[MAX_PBUF]; | ||
225 | |||
226 | if (container->fstype == NULL) | ||
227 | return 0; | ||
228 | -- | ||
229 | 2.17.1 | ||
230 | |||
diff --git a/recipes-extended/hyperstart/hyperstart_git.bb b/recipes-extended/hyperstart/hyperstart_git.bb index 02974772..99c21952 100644 --- a/recipes-extended/hyperstart/hyperstart_git.bb +++ b/recipes-extended/hyperstart/hyperstart_git.bb | |||
@@ -7,6 +7,7 @@ LIC_FILES_CHKSUM = "file://LICENSE;md5=fa818a259cbed7ce8bc2a22d35a464fc" | |||
7 | inherit autotools-brokensep | 7 | inherit autotools-brokensep |
8 | 8 | ||
9 | SRC_URI = "git://github.com/hyperhq/hyperstart.git" | 9 | SRC_URI = "git://github.com/hyperhq/hyperstart.git" |
10 | SRC_URI += "file://0001-container.c-Fix-compiler-errors-that-gcc-8.1.0-repor.patch" | ||
10 | 11 | ||
11 | SRCREV = "ad48a3230836f59ada163659cde151a37522068b" | 12 | SRCREV = "ad48a3230836f59ada163659cde151a37522068b" |
12 | PV = "v0.2+git${SRCREV}" | 13 | PV = "v0.2+git${SRCREV}" |