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feat: add support for fido yubikeys (#89)

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* add support for fido keybind

* add to themes

* fix clang format

* Update ui.c

* docs: add misc stuff about the yubikey

---------

Co-authored-by: javalsai <jvssxxi@gmail.com>
This commit is contained in:
creations
2025-12-13 15:37:58 -05:00
committed by GitHub
parent feeba5c41b
commit a7a1f42f0a
9 changed files with 135 additions and 22 deletions
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41
src/auth.c
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@@ -17,6 +17,11 @@
#include "unistd.h"
#include "util.h"
struct pam_conv_data {
char* password;
void (*display_pam_msg)(const char* msg, int msg_style);
};
int pam_conversation(int num_msg, const struct pam_message** msg,
struct pam_response** resp, void* appdata_ptr) {
struct pam_response* reply =
@@ -24,13 +29,34 @@ int pam_conversation(int num_msg, const struct pam_message** msg,
if (!reply) {
return PAM_BUF_ERR;
}
struct pam_conv_data* conv_data = (struct pam_conv_data*)appdata_ptr;
for (size_t i = 0; i < num_msg; i++) {
reply[i].resp = NULL;
reply[i].resp_retcode = 0;
if (msg[i]->msg_style == PAM_PROMPT_ECHO_OFF ||
msg[i]->msg_style == PAM_PROMPT_ECHO_ON) {
char* input = (char*)appdata_ptr;
reply[i].resp = strdup(input);
switch (msg[i]->msg_style) {
case PAM_PROMPT_ECHO_OFF:
case PAM_PROMPT_ECHO_ON:
reply[i].resp = strdup(conv_data->password);
if (!reply[i].resp) {
for (size_t j = 0; j < i; j++)
free(reply[j].resp);
free(reply);
return PAM_BUF_ERR;
}
break;
case PAM_TEXT_INFO:
case PAM_ERROR_MSG:
if (conv_data->display_pam_msg && msg[i]->msg) {
conv_data->display_pam_msg(msg[i]->msg, msg[i]->msg_style);
}
break;
default:
break;
}
}
*resp = reply;
@@ -54,7 +80,9 @@ void clear_screen() {
pam_handle_t* get_pamh(char* user, char* passwd) {
pam_handle_t* pamh = NULL;
struct pam_conv pamc = {pam_conversation, (void*)passwd};
struct pam_conv_data conv_data = {.password = passwd,
.display_pam_msg = print_pam_msg};
struct pam_conv pamc = {pam_conversation, (void*)&conv_data};
int ret;
char* pam_service_override = getenv("LIDM_PAM_SERVICE");
@@ -192,9 +220,10 @@ bool launch(char* user, char* passwd, struct session session, void (*cb)(void),
pam_handle_t* pamh = get_pamh(user, passwd);
if (pamh == NULL) {
print_err("error on pam authentication");
print_pam_msg("authentication failed", PAM_ERROR_MSG);
return false;
}
clear_pam_msg();
bool* reach_session = shmalloc(sizeof(bool));
if (reach_session == NULL) {