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HS 2.0: Set appropriate permission(s) for cert file/folders on Android

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This commit adds additional permission to 'SP' and 'Cert' folders
which is needed to copy certificates from Cert to SP. Additionally,
this associates AID_WIFI group id with these folders.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This commit is contained in:
Purushottam Kushwaha 2017-12-27 16:27:59 +05:30 committed by Jouni Malinen
parent 80ad068001
commit 727e9aacbf
1 changed files with 34 additions and 23 deletions
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57
hs20/client/osu_client.c
View file

@ -105,6 +105,35 @@ static int valid_fqdn(const char *fqdn)
}
static int android_update_permission(const char *path, mode_t mode)
{
#ifdef ANDROID
/* we need to change file/folder permission for Android */
if (!path) {
wpa_printf(MSG_ERROR, "file path null");
return -1;
}
/* Allow processes running with Group ID as AID_WIFI,
* to read files from SP, SP/<fqdn>, Cert and osu-info directories */
if (chown(path, -1, AID_WIFI)) {
wpa_printf(MSG_INFO, "CTRL: Could not chown directory: %s",
strerror(errno));
return -1;
}
if (chmod(path, mode) < 0) {
wpa_printf(MSG_INFO, "CTRL: Could not chmod directory: %s",
strerror(errno));
return -1;
}
#endif /* ANDROID */
return 0;
}
int osu_get_certificate(struct hs20_osu_client *ctx, xml_node_t *getcert)
{
xml_node_t *node;
@ -169,6 +198,8 @@ int osu_get_certificate(struct hs20_osu_client *ctx, xml_node_t *getcert)
}
mkdir("Cert", S_IRWXU);
android_update_permission("Cert", S_IRWXU | S_IRWXG);
if (est_load_cacerts(ctx, url) < 0 ||
est_build_csr(ctx, url) < 0 ||
est_simple_enroll(ctx, url, user, pw) < 0)
@ -578,20 +609,8 @@ int hs20_add_pps_mo(struct hs20_osu_client *ctx, const char *uri,
}
}
#ifdef ANDROID
/* Allow processes running with Group ID as AID_WIFI,
* to read files from SP/<fqdn> directory */
if (chown(fname, -1, AID_WIFI)) {
wpa_printf(MSG_INFO, "CTRL: Could not chown directory: %s",
strerror(errno));
/* Try to continue anyway */
}
if (chmod(fname, S_IRWXU | S_IRGRP | S_IXGRP) < 0) {
wpa_printf(MSG_INFO, "CTRL: Could not chmod directory: %s",
strerror(errno));
/* Try to continue anyway */
}
#endif /* ANDROID */
android_update_permission("SP", S_IRWXU | S_IRGRP | S_IXGRP);
android_update_permission(fname, S_IRWXU | S_IRGRP | S_IXGRP);
snprintf(fname, fname_len, "SP/%s/pps.xml", fqdn);
@ -2346,15 +2365,7 @@ static int cmd_signup(struct hs20_osu_client *ctx, int no_prod_assoc,
return -1;
}
#ifdef ANDROID
/* Allow processes running with Group ID as AID_WIFI
* to read/write files from osu-info directory
*/
if (chown(fname, -1, AID_WIFI)) {
wpa_printf(MSG_INFO, "Could not chown osu-info directory: %s",
strerror(errno));
}
#endif /* ANDROID */
android_update_permission(fname, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH);
snprintf(buf, sizeof(buf), "SET osu_dir %s", fname);
if (wpa_command(ifname, buf) < 0) {